// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.

using System;
using System.IO;
using EntityFrameworkCore.Jet.FunctionalTests.TestUtilities;
using Microsoft.EntityFrameworkCore.Metadata;
using Microsoft.EntityFrameworkCore.Metadata.Internal;
using Microsoft.EntityFrameworkCore.Migrations;
using Microsoft.EntityFrameworkCore.Migrations.Operations;
using EntityFrameworkCore.Jet.Internal;
using EntityFrameworkCore.Jet.Metadata;
using EntityFrameworkCore.Jet.Metadata.Internal;
using EntityFrameworkCore.Jet.Migrations.Operations;
using Microsoft.EntityFrameworkCore;
using Microsoft.EntityFrameworkCore.TestUtilities;
using Xunit;

// ReSharper disable InconsistentNaming
namespace EntityFrameworkCore.Jet.FunctionalTests
{
    public class JetMigrationSqlGeneratorTest : MigrationSqlGeneratorTestBase
    {
        public override void CreateTableOperation()
        {
            base.CreateTableOperation();

            AssertSql(
                $@"CREATE TABLE `People` (
    `Id` int NOT NULL,
    `EmployerId` int NULL,
    `SSN` char(11) NULL,
    PRIMARY KEY (`Id`),
    UNIQUE (`SSN`),
    CHECK (SSN > 0),
    FOREIGN KEY (`EmployerId`) REFERENCES `Companies` (`Id`)
);
EXEC sp_addextendedproperty 'MS_Description', 'Table comment', 'SCHEMA', 'dbo', 'TABLE', 'People';
EXEC sp_addextendedproperty 'MS_Description', 'Employer ID comment', 'SCHEMA', 'dbo', 'TABLE', 'People', 'COLUMN', 'EmployerId';
");
        }

        [ConditionalFact]
        public void CreateTableOperation_default_schema_with_comments()
        {
            Generate(
                new CreateTableOperation
                {
                    Name = "People",
                    Columns =
                    {
                        new AddColumnOperation
                        {
                            Name = "Id",
                            Table = "People",
                            ClrType = typeof(int),
                            IsNullable = false,
                            Comment = "ID comment"
                        },
                        new AddColumnOperation
                        {
                            Name = "Name",
                            Table = "People",
                            ClrType = typeof(string),
                            IsNullable = false,
                            Comment = "Name comment"
                        }
                    },
                    Comment = "Table comment"
                });

            AssertSql(
                $@"CREATE TABLE `People` (
    `Id` int NOT NULL,
    `Name` nvarchar(max) NOT NULL
);
DECLARE @defaultSchema AS sysname;
SET @defaultSchema = SCHEMA_NAME();
EXEC sp_addextendedproperty 'MS_Description', 'Table comment', 'SCHEMA', @defaultSchema, 'TABLE', 'People';
EXEC sp_addextendedproperty 'MS_Description', 'ID comment', 'SCHEMA', @defaultSchema, 'TABLE', 'People', 'COLUMN', 'Id';
EXEC sp_addextendedproperty 'MS_Description', 'Name comment', 'SCHEMA', @defaultSchema, 'TABLE', 'People', 'COLUMN', 'Name';
");
        }

        [ConditionalFact]
        public void CreateTableOperation_default_schema_with_column_comments()
        {
            Generate(
                new CreateTableOperation
                {
                    Name = "People",
                    Columns =
                    {
                        new AddColumnOperation
                        {
                            Name = "Id",
                            Table = "People",
                            ClrType = typeof(int),
                            IsNullable = false,
                            Comment = "ID comment"
                        },
                        new AddColumnOperation
                        {
                            Name = "Name",
                            Table = "People",
                            ClrType = typeof(string),
                            IsNullable = false,
                            Comment = "Name comment"
                        }
                    }
                });

            AssertSql(
                $@"CREATE TABLE `People` (
    `Id` int NOT NULL,
    `Name` nvarchar(max) NOT NULL
);
DECLARE @defaultSchema AS sysname;
SET @defaultSchema = SCHEMA_NAME();
EXEC sp_addextendedproperty 'MS_Description', 'ID comment', 'SCHEMA', @defaultSchema, 'TABLE', 'People', 'COLUMN', 'Id';
EXEC sp_addextendedproperty 'MS_Description', 'Name comment', 'SCHEMA', @defaultSchema, 'TABLE', 'People', 'COLUMN', 'Name';
");
        }

        public override void CreateTableOperation_no_key()
        {
            base.CreateTableOperation_no_key();

            AssertSql(
                $@"CREATE TABLE `Anonymous` (
    `Value` int NOT NULL
);
");
        }

        public override void CreateIndexOperation_with_filter_where_clause()
        {
            base.CreateIndexOperation_with_filter_where_clause();

            AssertSql(
                $@"CREATE INDEX `IX_People_Name` ON `People` (`Name`) WHERE `Name` IS NOT NULL;
");
        }

        public override void CreateIndexOperation_with_filter_where_clause_and_is_unique()
        {
            base.CreateIndexOperation_with_filter_where_clause_and_is_unique();

            AssertSql(
                $@"CREATE UNIQUE INDEX `IX_People_Name` ON `People` (`Name`) WHERE `Name` IS NOT NULL AND <> '';
");
        }

        [ConditionalFact]
        public void AlterTableOperation_with_new_comment()
        {
            Generate(
                new AlterTableOperation
                {
                    Name = "People",
                    Schema = null,
                    Comment = "My Comment"
                });

            AssertSql(
                $@"EXEC sp_addextendedproperty 'MS_Description', 'My Comment', 'SCHEMA', 'dbo', 'TABLE', 'People';
");
        }

        [ConditionalFact]
        public void AlterTableOperation_with_different_comment_to_existing()
        {
            Generate(
                modelBuilder => modelBuilder
                    .HasAnnotation(CoreAnnotationNames.ProductVersion, "1.1.0")
                    .Entity(
                        "Person", x =>
                        {
                            x.HasComment("My Comment");
                        }),
                new AlterTableOperation
                {
                    Schema = null,
                    Name = "People",
                    Comment = "My Comment 2",
                    OldTable = new TableOperation { Comment = "My Comment" }
                });

            AssertSql(
                $@"EXEC sp_dropextendedproperty 'MS_Description', 'SCHEMA', 'dbo', 'TABLE', 'People';
EXEC sp_addextendedproperty 'MS_Description', 'My Comment 2', 'SCHEMA', 'dbo', 'TABLE', 'People';
");
        }

        [ConditionalFact]
        public void AlterTableOperation_removing_comment()
        {
            Generate(
                modelBuilder => modelBuilder
                    .HasAnnotation(CoreAnnotationNames.ProductVersion, "1.1.0")
                    .Entity(
                        "Person", x =>
                        {
                            x.HasComment("My Comment");
                        }),
                new AlterTableOperation
                {
                    Schema = null,
                    Name = "People",
                    OldTable = new TableOperation { Comment = "My Comment" }
                });

            AssertSql(
                $@"EXEC sp_dropextendedproperty 'MS_Description', 'SCHEMA', 'dbo', 'TABLE', 'People';
");
        }

        [ConditionalFact]
        public virtual void AddColumnOperation_with_computedSql()
        {
            Generate(
                new AddColumnOperation
                {
                    Table = "People",
                    Name = "FullName",
                    ClrType = typeof(string),
                    ComputedColumnSql = "FirstName + ' ' + LastName"
                });

            AssertSql(
                $@"ALTER TABLE `People` ADD `FullName` AS FirstName + ' ' + LastName;
");
        }

        [ConditionalFact]
        public void AddColumnOperation_with_computed_column_SQL()
        {
            Generate(
                new AddColumnOperation
                {
                    Table = "People",
                    Name = "Birthday",
                    ClrType = typeof(DateTime),
                    ColumnType = "date",
                    IsNullable = true,
                    ComputedColumnSql = "CURRENT_TIMESTAMP"
                });

            AssertSql(
                $@"ALTER TABLE `People` ADD `Birthday` AS CURRENT_TIMESTAMP;
");
        }

        [ConditionalFact]
        public virtual void AddColumnOperation_identity()
        {
            Generate(
                new AddColumnOperation
                {
                    Table = "People",
                    Name = "Id",
                    ClrType = typeof(int),
                    ColumnType = "int",
                    DefaultValue = 0,
                    IsNullable = false,
                    [JetAnnotationNames.Identity] = "1, 1"
                });

            AssertSql(
                $@"ALTER TABLE `People` ADD `Id` int NOT NULL IDENTITY;
");
        }

        [ConditionalFact]
        public virtual void AddColumnOperation_identity_legacy()
        {
            Generate(
                new AddColumnOperation
                {
                    Table = "People",
                    Name = "Id",
                    ClrType = typeof(int),
                    ColumnType = "int",
                    DefaultValue = 0,
                    IsNullable = false,
                    [JetAnnotationNames.ValueGenerationStrategy] =
                        JetValueGenerationStrategy.IdentityColumn
                });

            AssertSql(
                $@"ALTER TABLE `People` ADD `Id` int NOT NULL IDENTITY;
");
        }

        [ConditionalFact]
        public virtual void AddColumnOperation_identity_seed_increment()
        {
            Generate(
                new AddColumnOperation
                {
                    Table = "People",
                    Name = "Id",
                    ClrType = typeof(int),
                    ColumnType = "int",
                    DefaultValue = 0,
                    IsNullable = false,
                    [JetAnnotationNames.Identity] = "100,5"
                });

            AssertSql(
                $@"ALTER TABLE `People` ADD `Id` int NOT NULL IDENTITY(100,5);
");
        }

        public override void AddColumnOperation_without_column_type()
        {
            base.AddColumnOperation_without_column_type();

            AssertSql(
                $@"ALTER TABLE `People` ADD `Alias` nvarchar(max) NOT NULL;
");
        }

        public override void AddColumnOperation_with_unicode_no_model()
        {
            base.AddColumnOperation_with_unicode_no_model();

            AssertSql(
                $@"ALTER TABLE `Person` ADD `Name` varchar(max) NULL;
");
        }

        public override void AddColumnOperation_with_maxLength()
        {
            base.AddColumnOperation_with_maxLength();

            AssertSql(
                $@"ALTER TABLE `Person` ADD `Name` nvarchar(30) NULL;
");
        }

        [ConditionalFact]
        public virtual void AddColumnOperation_datetime_with_defaultValue()
        {
            Generate(
                new AddColumnOperation
                {
                    Table = "People",
                    Schema = null,
                    Name = "Birthday",
                    ClrType = typeof(DateTime),
                    ColumnType = "datetime",
                    IsNullable = false,
                    DefaultValue = new DateTime(2019, 1, 1)
                });

            AssertSql(
                $@"ALTER TABLE `People` ADD `Birthday` datetime NOT NULL DEFAULT #01/01/2019 00:00:00#;
");
        }

        [ConditionalFact]
        public virtual void AddColumnOperation_smalldatetime_with_defaultValue()
        {
            Generate(
                new AddColumnOperation
                {
                    Table = "People",
                    Schema = null,
                    Name = "Birthday",
                    ClrType = typeof(DateTime),
                    ColumnType = "smalldatetime",
                    IsNullable = false,
                    DefaultValue = new DateTime(2019, 1, 1)
                });

            AssertSql(
                $@"ALTER TABLE `People` ADD `Birthday` smalldatetime NOT NULL DEFAULT '2019-01-01T00:00:00';
");
        }

        public override void AddColumnOperation_with_maxLength_overridden()
        {
            base.AddColumnOperation_with_maxLength_overridden();

            AssertSql(
                $@"ALTER TABLE `Person` ADD `Name` nvarchar(32) NULL;
");
        }

        public override void AddColumnOperation_with_maxLength_on_derived()
        {
            base.AddColumnOperation_with_maxLength_on_derived();

            AssertSql(
                $@"ALTER TABLE `Person` ADD `Name` nvarchar(30) NULL;
");
        }

        public override void AddColumnOperation_with_ansi()
        {
            base.AddColumnOperation_with_ansi();

            AssertSql(
                $@"ALTER TABLE `Person` ADD `Name` varchar(max) NULL;
");
        }

        public override void AddColumnOperation_with_unicode_overridden()
        {
            base.AddColumnOperation_with_unicode_overridden();

            AssertSql(
                $@"ALTER TABLE `Person` ADD `Name` nvarchar(max) NULL;
");
        }

        public override void AddColumnOperation_with_shared_column()
        {
            base.AddColumnOperation_with_shared_column();

            AssertSql(
                $@"ALTER TABLE `Base` ADD `Foo` nvarchar(max) NULL;
");
        }

        [ConditionalFact]
        public virtual void AddColumnOperation_with_rowversion_overridden()
        {
            Generate(
                modelBuilder => modelBuilder.Entity("Person").Property<byte[]>("RowVersion"),
                new AddColumnOperation
                {
                    Table = "Person",
                    Name = "RowVersion",
                    ClrType = typeof(byte[]),
                    IsRowVersion = true,
                    IsNullable = true
                });

            AssertSql(
                $@"ALTER TABLE `Person` ADD `RowVersion` rowversion NULL;
");
        }

        [ConditionalFact]
        public virtual void AddColumnOperation_with_rowversion_no_model()
        {
            Generate(
                new AddColumnOperation
                {
                    Table = "Person",
                    Name = "RowVersion",
                    ClrType = typeof(byte[]),
                    IsRowVersion = true,
                    IsNullable = true
                });

            AssertSql(
                $@"ALTER TABLE `Person` ADD `RowVersion` rowversion NULL;
");
        }

        [ConditionalFact]
        public virtual void AddColumnOperation_with_comment()
        {
            Generate(
                new AddColumnOperation
                {
                    Table = "People",
                    Name = "FullName",
                    ClrType = typeof(string),
                    Comment = "My comment"
                });

            AssertSql(
                $@"ALTER TABLE `People` ADD `FullName` nvarchar(max) NOT NULL;
DECLARE @defaultSchema AS sysname;
SET @defaultSchema = SCHEMA_NAME();
EXEC sp_addextendedproperty 'MS_Description', 'My comment', 'SCHEMA', @defaultSchema, 'TABLE', 'People', 'COLUMN', 'FullName';
");
        }

        [ConditionalFact]
        public virtual void AddColumnOperation_with_comment_non_default_schema()
        {
            Generate(
                new AddColumnOperation
                {
                    Schema = "my",
                    Table = "People",
                    Name = "FullName",
                    ClrType = typeof(string),
                    Comment = "My comment"
                });

            AssertSql(
                $@"ALTER TABLE `my`.`People` ADD `FullName` nvarchar(max) NOT NULL;
EXEC sp_addextendedproperty 'MS_Description', 'My comment', 'SCHEMA', 'my', 'TABLE', 'People', 'COLUMN', 'FullName';
");
        }

        [ConditionalFact]
        public virtual void AddPrimaryKeyOperation_nonclustered()
        {
            Generate(
                new AddPrimaryKeyOperation
                {
                    Table = "People",
                    Columns = new[] { "Id" },
                });

            AssertSql(
                $@"ALTER TABLE `People` ADD PRIMARY KEY NONCLUSTERED (`Id`);
");
        }

        public override void AlterColumnOperation()
        {
            base.AlterColumnOperation();

            AssertSql(
                $@"DECLARE @var0 sysname;
SELECT @var0 = `d`.`name`
FROM `sys`.`default_constraints` `d`
INNER JOIN `sys`.`columns` `c` ON `d`.`parent_column_id` = `c`.`column_id` AND `d`.`parent_object_id` = `c`.`object_id`
WHERE (`d`.`parent_object_id` = OBJECT_ID('`People`') AND `c`.`name` = 'LuckyNumber');
IF @var0 IS NOT NULL EXEC('ALTER TABLE `People` DROP CONSTRAINT [' + @var0 + '];');
ALTER TABLE `People` ALTER COLUMN `LuckyNumber` int NOT NULL;
ALTER TABLE `People` ADD DEFAULT 7 FOR `LuckyNumber`;
");
        }

        public override void AlterColumnOperation_without_column_type()
        {
            base.AlterColumnOperation_without_column_type();

            AssertSql(
                $@"DECLARE @var0 sysname;
SELECT @var0 = `d`.`name`
FROM `sys`.`default_constraints` `d`
INNER JOIN `sys`.`columns` `c` ON `d`.`parent_column_id` = `c`.`column_id` AND `d`.`parent_object_id` = `c`.`object_id`
WHERE (`d`.`parent_object_id` = OBJECT_ID('`People`') AND `c`.`name` = 'LuckyNumber');
IF @var0 IS NOT NULL EXEC('ALTER TABLE `People` DROP CONSTRAINT [' + @var0 + '];');
ALTER TABLE `People` ALTER COLUMN `LuckyNumber` int NOT NULL;
");
        }

        [ConditionalFact]
        public virtual void AlterColumnOperation_with_identity()
        {
            Generate(
                new AlterColumnOperation
                {
                    Table = "People",
                    Name = "Id",
                    ClrType = typeof(int),
                    [JetAnnotationNames.Identity] = "1, 1"
                });

            AssertSql(
                $@"DECLARE @var0 sysname;
SELECT @var0 = `d`.`name`
FROM `sys`.`default_constraints` `d`
INNER JOIN `sys`.`columns` `c` ON `d`.`parent_column_id` = `c`.`column_id` AND `d`.`parent_object_id` = `c`.`object_id`
WHERE (`d`.`parent_object_id` = OBJECT_ID('`People`') AND `c`.`name` = 'Id');
IF @var0 IS NOT NULL EXEC('ALTER TABLE `People` DROP CONSTRAINT [' + @var0 + '];');
ALTER TABLE `People` ALTER COLUMN `Id` int NOT NULL;
");
        }

        [ConditionalFact]
        public virtual void AlterColumnOperation_with_identity_legacy()
        {
            Generate(
                new AlterColumnOperation
                {
                    Table = "People",
                    Name = "Id",
                    ClrType = typeof(int),
                    [JetAnnotationNames.ValueGenerationStrategy] =
                        JetValueGenerationStrategy.IdentityColumn
                });

            AssertSql(
                $@"DECLARE @var0 sysname;
SELECT @var0 = `d`.`name`
FROM `sys`.`default_constraints` `d`
INNER JOIN `sys`.`columns` `c` ON `d`.`parent_column_id` = `c`.`column_id` AND `d`.`parent_object_id` = `c`.`object_id`
WHERE (`d`.`parent_object_id` = OBJECT_ID('`People`') AND `c`.`name` = 'Id');
IF @var0 IS NOT NULL EXEC('ALTER TABLE `People` DROP CONSTRAINT [' + @var0 + '];');
ALTER TABLE `People` ALTER COLUMN `Id` int NOT NULL;
");
        }

        [ConditionalFact]
        public void AlterColumnOperation_computed()
        {
            Generate(
                new AlterColumnOperation
                {
                    Table = "People",
                    Name = "FullName",
                    ClrType = typeof(string),
                    ComputedColumnSql = "`FirstName` + ' ' + `LastName`"
                });

            AssertSql(
                $@"DECLARE @var0 sysname;
SELECT @var0 = `d`.`name`
FROM `sys`.`default_constraints` `d`
INNER JOIN `sys`.`columns` `c` ON `d`.`parent_column_id` = `c`.`column_id` AND `d`.`parent_object_id` = `c`.`object_id`
WHERE (`d`.`parent_object_id` = OBJECT_ID('`People`') AND `c`.`name` = 'FullName');
IF @var0 IS NOT NULL EXEC('ALTER TABLE `People` DROP CONSTRAINT [' + @var0 + '];');
ALTER TABLE `People` DROP COLUMN `FullName`;
ALTER TABLE `People` ADD `FullName` AS `FirstName` + ' ' + `LastName`;
");
        }

        [ConditionalFact]
        public virtual void AlterColumnOperation_computed_with_index()
        {
            Generate(
                modelBuilder => modelBuilder
                    .HasAnnotation(CoreAnnotationNames.ProductVersion, "1.1.0")
                    .Entity(
                        "Person", x =>
                        {
                            x.Property<string>("FullName").HasComputedColumnSql("`FirstName` + ' ' + `LastName`");
                            x.HasKey("FullName");
                            x.HasIndex("FullName");
                        }),
                new AlterColumnOperation
                {
                    Table = "Person",
                    Name = "FullName",
                    ClrType = typeof(string),
                    ComputedColumnSql = "`FirstName` + ' ' + `LastName`",
                    OldColumn = new ColumnOperation { ClrType = typeof(string), ComputedColumnSql = "`LastName` + ', ' + `FirstName`" }
                });

            AssertSql(
                $@"DROP INDEX `IX_Person_FullName` ON `Person`;
DECLARE @var0 sysname;
SELECT @var0 = `d`.`name`
FROM `sys`.`default_constraints` `d`
INNER JOIN `sys`.`columns` `c` ON `d`.`parent_column_id` = `c`.`column_id` AND `d`.`parent_object_id` = `c`.`object_id`
WHERE (`d`.`parent_object_id` = OBJECT_ID('`Person`') AND `c`.`name` = 'FullName');
IF @var0 IS NOT NULL EXEC('ALTER TABLE `Person` DROP CONSTRAINT [' + @var0 + '];');
ALTER TABLE `Person` DROP COLUMN `FullName`;
ALTER TABLE `Person` ADD `FullName` AS `FirstName` + ' ' + `LastName`;
CREATE INDEX `IX_Person_FullName` ON `Person` (`FullName`);
");
        }

        [ConditionalFact]
        public virtual void AlterColumnOperation_memoryOptimized_with_index()
        {
            Generate(
                modelBuilder => modelBuilder
                    .HasAnnotation(CoreAnnotationNames.ProductVersion, "1.1.0")
                    .Entity(
                        "Person", x =>
                        {
                            x.Property<string>("Name");
                            x.HasKey("Name");
                            x.HasIndex("Name");
                        }),
                new AlterColumnOperation
                {
                    Table = "Person",
                    Name = "Name",
                    ClrType = typeof(string),
                    MaxLength = 30,
                    OldColumn = new ColumnOperation { ClrType = typeof(string) }
                });

            AssertSql(
                $@"ALTER TABLE `Person` DROP INDEX `IX_Person_Name`;
DECLARE @var0 sysname;
SELECT @var0 = `d`.`name`
FROM `sys`.`default_constraints` `d`
INNER JOIN `sys`.`columns` `c` ON `d`.`parent_column_id` = `c`.`column_id` AND `d`.`parent_object_id` = `c`.`object_id`
WHERE (`d`.`parent_object_id` = OBJECT_ID('`Person`') AND `c`.`name` = 'Name');
IF @var0 IS NOT NULL EXEC('ALTER TABLE `Person` DROP CONSTRAINT [' + @var0 + '];');
ALTER TABLE `Person` ALTER COLUMN `Name` nvarchar(30) NOT NULL;
ALTER TABLE `Person` ADD INDEX `IX_Person_Name` NONCLUSTERED (`Name`);
");
        }

        [ConditionalFact]
        public virtual void AlterColumnOperation_with_index_no_narrowing()
        {
            Generate(
                modelBuilder => modelBuilder
                    .HasAnnotation(CoreAnnotationNames.ProductVersion, "1.1.0")
                    .Entity(
                        "Person", x =>
                        {
                            x.Property<string>("Name");
                            x.HasKey("Name");
                            x.HasIndex("Name");
                        }),
                new AlterColumnOperation
                {
                    Table = "Person",
                    Name = "Name",
                    ClrType = typeof(string),
                    IsNullable = true,
                    OldColumn = new ColumnOperation { ClrType = typeof(string), IsNullable = false }
                });

            AssertSql(
                $@"DECLARE @var0 sysname;
SELECT @var0 = `d`.`name`
FROM `sys`.`default_constraints` `d`
INNER JOIN `sys`.`columns` `c` ON `d`.`parent_column_id` = `c`.`column_id` AND `d`.`parent_object_id` = `c`.`object_id`
WHERE (`d`.`parent_object_id` = OBJECT_ID('`Person`') AND `c`.`name` = 'Name');
IF @var0 IS NOT NULL EXEC('ALTER TABLE `Person` DROP CONSTRAINT [' + @var0 + '];');
ALTER TABLE `Person` ALTER COLUMN `Name` nvarchar(450) NULL;
");
        }

        [ConditionalFact]
        public virtual void AlterColumnOperation_with_index()
        {
            Generate(
                modelBuilder => modelBuilder
                    .HasAnnotation(CoreAnnotationNames.ProductVersion, "1.1.0")
                    .Entity(
                        "Person", x =>
                        {
                            x.Property<string>("Name").HasMaxLength(30);
                            x.HasKey("Name");
                            x.HasIndex("Name");
                        }),
                new AlterColumnOperation
                {
                    Table = "Person",
                    Name = "Name",
                    ClrType = typeof(string),
                    MaxLength = 30,
                    IsNullable = true,
                    OldColumn = new ColumnOperation { ClrType = typeof(string), IsNullable = true }
                });

            AssertSql(
                $@"DROP INDEX `IX_Person_Name` ON `Person`;
DECLARE @var0 sysname;
SELECT @var0 = `d`.`name`
FROM `sys`.`default_constraints` `d`
INNER JOIN `sys`.`columns` `c` ON `d`.`parent_column_id` = `c`.`column_id` AND `d`.`parent_object_id` = `c`.`object_id`
WHERE (`d`.`parent_object_id` = OBJECT_ID('`Person`') AND `c`.`name` = 'Name');
IF @var0 IS NOT NULL EXEC('ALTER TABLE `Person` DROP CONSTRAINT [' + @var0 + '];');
ALTER TABLE `Person` ALTER COLUMN `Name` nvarchar(30) NULL;
CREATE INDEX `IX_Person_Name` ON `Person` (`Name`);
");
        }

        [ConditionalFact]
        public virtual void AlterColumnOperation_with_index_included_column()
        {
            Generate(
                modelBuilder => modelBuilder
                    .HasAnnotation(CoreAnnotationNames.ProductVersion, "1.1.0")
                    .Entity(
                        "Person", x =>
                        {
                            x.Property<string>("Name").HasMaxLength(30);
                            x.Property<string>("FirstName");
                            x.Property<string>("LastName");
                            x.HasKey("Name");
                        }),
                new AlterColumnOperation
                {
                    Table = "Person",
                    Name = "Name",
                    ClrType = typeof(string),
                    MaxLength = 30,
                    IsNullable = true,
                    OldColumn = new ColumnOperation { ClrType = typeof(string), IsNullable = true }
                });

            AssertSql(
                $@"DROP INDEX `IX_Person_FirstName_LastName` ON `Person`;
DECLARE @var0 sysname;
SELECT @var0 = `d`.`name`
FROM `sys`.`default_constraints` `d`
INNER JOIN `sys`.`columns` `c` ON `d`.`parent_column_id` = `c`.`column_id` AND `d`.`parent_object_id` = `c`.`object_id`
WHERE (`d`.`parent_object_id` = OBJECT_ID('`Person`') AND `c`.`name` = 'Name');
IF @var0 IS NOT NULL EXEC('ALTER TABLE `Person` DROP CONSTRAINT [' + @var0 + '];');
ALTER TABLE `Person` ALTER COLUMN `Name` nvarchar(30) NULL;
CREATE INDEX `IX_Person_FirstName_LastName` ON `Person` (`FirstName`, `LastName`) INCLUDE (`Name`);
");
        }

        [ConditionalFact]
        public virtual void AlterColumnOperation_with_index_no_included()
        {
            Generate(
                modelBuilder => modelBuilder
                    .HasAnnotation(CoreAnnotationNames.ProductVersion, "1.1.0")
                    .Entity(
                        "Person", x =>
                        {
                            x.Property<string>("Name").HasMaxLength(30);
                            x.Property<string>("FirstName");
                            x.Property<string>("LastName");
                            x.HasIndex("FirstName", "LastName");
                        }),
                new AlterColumnOperation
                {
                    Table = "Person",
                    Name = "Name",
                    ClrType = typeof(string),
                    MaxLength = 30,
                    IsNullable = true,
                    OldColumn = new ColumnOperation { ClrType = typeof(string), IsNullable = true }
                });

            AssertSql(
                $@"DECLARE @var0 sysname;
SELECT @var0 = `d`.`name`
FROM `sys`.`default_constraints` `d`
INNER JOIN `sys`.`columns` `c` ON `d`.`parent_column_id` = `c`.`column_id` AND `d`.`parent_object_id` = `c`.`object_id`
WHERE (`d`.`parent_object_id` = OBJECT_ID('`Person`') AND `c`.`name` = 'Name');
IF @var0 IS NOT NULL EXEC('ALTER TABLE `Person` DROP CONSTRAINT [' + @var0 + '];');
ALTER TABLE `Person` ALTER COLUMN `Name` nvarchar(30) NULL;
");
        }

        [ConditionalFact]
        public virtual void AlterColumnOperation_with_index_no_oldColumn()
        {
            Generate(
                modelBuilder => modelBuilder
                    .HasAnnotation(CoreAnnotationNames.ProductVersion, "1.0.0-rtm")
                    .Entity(
                        "Person", x =>
                        {
                            x.Property<string>("Name").HasMaxLength(30);
                            x.HasIndex("Name");
                        }),
                new AlterColumnOperation
                {
                    Table = "Person",
                    Name = "Name",
                    ClrType = typeof(string),
                    MaxLength = 30,
                    IsNullable = true,
                    OldColumn = new ColumnOperation()
                });

            AssertSql(
                $@"DECLARE @var0 sysname;
SELECT @var0 = `d`.`name`
FROM `sys`.`default_constraints` `d`
INNER JOIN `sys`.`columns` `c` ON `d`.`parent_column_id` = `c`.`column_id` AND `d`.`parent_object_id` = `c`.`object_id`
WHERE (`d`.`parent_object_id` = OBJECT_ID('`Person`') AND `c`.`name` = 'Name');
IF @var0 IS NOT NULL EXEC('ALTER TABLE `Person` DROP CONSTRAINT [' + @var0 + '];');
ALTER TABLE `Person` ALTER COLUMN `Name` nvarchar(30) NULL;
");
        }

        [ConditionalFact]
        public virtual void AlterColumnOperation_with_composite_index()
        {
            Generate(
                modelBuilder => modelBuilder
                    .HasAnnotation(CoreAnnotationNames.ProductVersion, "1.1.0")
                    .Entity(
                        "Person", x =>
                        {
                            x.Property<string>("FirstName").IsRequired();
                            x.Property<string>("LastName");
                            x.HasKey("LastName");
                            x.HasIndex("FirstName", "LastName");
                        }),
                new AlterColumnOperation
                {
                    Table = "Person",
                    Name = "FirstName",
                    ClrType = typeof(string),
                    IsNullable = false,
                    OldColumn = new ColumnOperation { ClrType = typeof(string), IsNullable = true }
                });

            AssertSql(
                $@"DROP INDEX `IX_Person_FirstName_LastName` ON `Person`;
DECLARE @var0 sysname;
SELECT @var0 = `d`.`name`
FROM `sys`.`default_constraints` `d`
INNER JOIN `sys`.`columns` `c` ON `d`.`parent_column_id` = `c`.`column_id` AND `d`.`parent_object_id` = `c`.`object_id`
WHERE (`d`.`parent_object_id` = OBJECT_ID('`Person`') AND `c`.`name` = 'FirstName');
IF @var0 IS NOT NULL EXEC('ALTER TABLE `Person` DROP CONSTRAINT [' + @var0 + '];');
ALTER TABLE `Person` ALTER COLUMN `FirstName` nvarchar(450) NOT NULL;
CREATE INDEX `IX_Person_FirstName_LastName` ON `Person` (`FirstName`, `LastName`);
");
        }

        [ConditionalFact]
        public virtual void AlterColumnOperation_with_added_index()
        {
            Generate(
                modelBuilder => modelBuilder
                    .HasAnnotation(CoreAnnotationNames.ProductVersion, "1.1.0")
                    .Entity(
                        "Person", x =>
                        {
                            x.Property<string>("Name").HasMaxLength(30);
                            x.HasIndex("Name");
                        }),
                new AlterColumnOperation
                {
                    Table = "Person",
                    Name = "Name",
                    ClrType = typeof(string),
                    MaxLength = 30,
                    IsNullable = true,
                    OldColumn = new ColumnOperation { ClrType = typeof(string), IsNullable = true }
                },
                new CreateIndexOperation
                {
                    Name = "IX_Person_Name",
                    Table = "Person",
                    Columns = new[] { "Name" }
                });

            AssertSql(
                $@"DECLARE @var0 sysname;
SELECT @var0 = `d`.`name`
FROM `sys`.`default_constraints` `d`
INNER JOIN `sys`.`columns` `c` ON `d`.`parent_column_id` = `c`.`column_id` AND `d`.`parent_object_id` = `c`.`object_id`
WHERE (`d`.`parent_object_id` = OBJECT_ID('`Person`') AND `c`.`name` = 'Name');
IF @var0 IS NOT NULL EXEC('ALTER TABLE `Person` DROP CONSTRAINT [' + @var0 + '];');
ALTER TABLE `Person` ALTER COLUMN `Name` nvarchar(30) NULL;
GO

CREATE INDEX `IX_Person_Name` ON `Person` (`Name`);
");
        }

        [ConditionalFact]
        public virtual void AlterColumnOperation_with_added_online_index()
        {
            Generate(
                modelBuilder => modelBuilder
                    .HasAnnotation(CoreAnnotationNames.ProductVersion, "1.1.0")
                    .Entity(
                        "Person", x =>
                        {
                            x.Property<string>("Name").HasMaxLength(30);
                        }),
                new AlterColumnOperation
                {
                    Table = "Person",
                    Name = "Name",
                    ClrType = typeof(string),
                    MaxLength = 30,
                    IsNullable = true,
                    OldColumn = new ColumnOperation { ClrType = typeof(string), IsNullable = true }
                },
                new CreateIndexOperation
                {
                    Name = "IX_Person_Name",
                    Table = "Person",
                    Columns = new[] { "Name" },
                });

            AssertSql(
                $@"DECLARE @var0 sysname;
SELECT @var0 = `d`.`name`
FROM `sys`.`default_constraints` `d`
INNER JOIN `sys`.`columns` `c` ON `d`.`parent_column_id` = `c`.`column_id` AND `d`.`parent_object_id` = `c`.`object_id`
WHERE (`d`.`parent_object_id` = OBJECT_ID('`Person`') AND `c`.`name` = 'Name');
IF @var0 IS NOT NULL EXEC('ALTER TABLE `Person` DROP CONSTRAINT [' + @var0 + '];');
ALTER TABLE `Person` ALTER COLUMN `Name` nvarchar(30) NULL;
GO

CREATE INDEX `IX_Person_Name` ON `Person` (`Name`) WITH (ONLINE = ON);
");
        }

        [ConditionalFact]
        public virtual void AlterColumnOperation_identity()
        {
            Generate(
                modelBuilder => modelBuilder.HasAnnotation(CoreAnnotationNames.ProductVersion, "1.1.0"),
                new AlterColumnOperation
                {
                    Table = "Person",
                    Name = "Id",
                    ClrType = typeof(long),
                    [JetAnnotationNames.Identity] = "1, 1",
                    OldColumn = new ColumnOperation { ClrType = typeof(int), [JetAnnotationNames.Identity] = "1, 1" }
                });

            AssertSql(
                $@"DECLARE @var0 sysname;
SELECT @var0 = `d`.`name`
FROM `sys`.`default_constraints` `d`
INNER JOIN `sys`.`columns` `c` ON `d`.`parent_column_id` = `c`.`column_id` AND `d`.`parent_object_id` = `c`.`object_id`
WHERE (`d`.`parent_object_id` = OBJECT_ID('`Person`') AND `c`.`name` = 'Id');
IF @var0 IS NOT NULL EXEC('ALTER TABLE `Person` DROP CONSTRAINT [' + @var0 + '];');
ALTER TABLE `Person` ALTER COLUMN `Id` bigint NOT NULL;
");
        }

        [ConditionalFact]
        public virtual void AlterColumnOperation_identity_legacy()
        {
            Generate(
                modelBuilder => modelBuilder.HasAnnotation(CoreAnnotationNames.ProductVersion, "1.1.0"),
                new AlterColumnOperation
                {
                    Table = "Person",
                    Name = "Id",
                    ClrType = typeof(long),
                    [JetAnnotationNames.ValueGenerationStrategy] = JetValueGenerationStrategy.IdentityColumn,
                    OldColumn = new ColumnOperation
                    {
                        ClrType = typeof(int),
                        [JetAnnotationNames.ValueGenerationStrategy] = JetValueGenerationStrategy.IdentityColumn
                    }
                });

            AssertSql(
                $@"DECLARE @var0 sysname;
SELECT @var0 = `d`.`name`
FROM `sys`.`default_constraints` `d`
INNER JOIN `sys`.`columns` `c` ON `d`.`parent_column_id` = `c`.`column_id` AND `d`.`parent_object_id` = `c`.`object_id`
WHERE (`d`.`parent_object_id` = OBJECT_ID('`Person`') AND `c`.`name` = 'Id');
IF @var0 IS NOT NULL EXEC('ALTER TABLE `Person` DROP CONSTRAINT [' + @var0 + '];');
ALTER TABLE `Person` ALTER COLUMN `Id` bigint NOT NULL;
");
        }

        [ConditionalFact]
        public virtual void AlterColumnOperation_add_identity()
        {
            var ex = Assert.Throws<InvalidOperationException>(
                () => Generate(
                    modelBuilder => modelBuilder.HasAnnotation(CoreAnnotationNames.ProductVersion, "1.1.0"),
                    new AlterColumnOperation
                    {
                        Table = "Person",
                        Name = "Id",
                        ClrType = typeof(int),
                        [JetAnnotationNames.Identity] = "1, 1",
                        OldColumn = new ColumnOperation { ClrType = typeof(int) }
                    }));

            Assert.Equal(JetStrings.AlterIdentityColumn, ex.Message);
        }

        [ConditionalFact]
        public virtual void AlterColumnOperation_add_identity_legacy()
        {
            var ex = Assert.Throws<InvalidOperationException>(
                () => Generate(
                    modelBuilder => modelBuilder.HasAnnotation(CoreAnnotationNames.ProductVersion, "1.1.0"),
                    new AlterColumnOperation
                    {
                        Table = "Person",
                        Name = "Id",
                        ClrType = typeof(int),
                        [JetAnnotationNames.ValueGenerationStrategy] = JetValueGenerationStrategy.IdentityColumn,
                        OldColumn = new ColumnOperation { ClrType = typeof(int) }
                    }));

            Assert.Equal(JetStrings.AlterIdentityColumn, ex.Message);
        }

        [ConditionalFact]
        public virtual void AlterColumnOperation_remove_identity()
        {
            var ex = Assert.Throws<InvalidOperationException>(
                () => Generate(
                    modelBuilder => modelBuilder.HasAnnotation(CoreAnnotationNames.ProductVersion, "1.1.0"),
                    new AlterColumnOperation
                    {
                        Table = "Person",
                        Name = "Id",
                        ClrType = typeof(int),
                        OldColumn = new ColumnOperation { ClrType = typeof(int), [JetAnnotationNames.Identity] = "1, 1" }
                    }));

            Assert.Equal(JetStrings.AlterIdentityColumn, ex.Message);
        }

        [ConditionalFact]
        public virtual void AlterColumnOperation_remove_identity_legacy()
        {
            var ex = Assert.Throws<InvalidOperationException>(
                () => Generate(
                    modelBuilder => modelBuilder.HasAnnotation(CoreAnnotationNames.ProductVersion, "1.1.0"),
                    new AlterColumnOperation
                    {
                        Table = "Person",
                        Name = "Id",
                        ClrType = typeof(int),
                        OldColumn = new ColumnOperation
                        {
                            ClrType = typeof(int),
                            [JetAnnotationNames.ValueGenerationStrategy] = JetValueGenerationStrategy.IdentityColumn
                        }
                    }));

            Assert.Equal(JetStrings.AlterIdentityColumn, ex.Message);
        }

        [ConditionalFact]
        public void AlterColumnOperation_with_new_comment()
        {
            Generate(
                new AlterColumnOperation
                {
                    Table = "People",
                    Schema = null,
                    Name = "LuckyNumber",
                    ClrType = typeof(int),
                    ColumnType = "int",
                    IsNullable = false,
                    Comment = "My Comment"
                });

            AssertSql(
                $@"DECLARE @var0 sysname;
SELECT @var0 = `d`.`name`
FROM `sys`.`default_constraints` `d`
INNER JOIN `sys`.`columns` `c` ON `d`.`parent_column_id` = `c`.`column_id` AND `d`.`parent_object_id` = `c`.`object_id`
WHERE (`d`.`parent_object_id` = OBJECT_ID('`People`') AND `c`.`name` = 'LuckyNumber');
IF @var0 IS NOT NULL EXEC('ALTER TABLE `People` DROP CONSTRAINT [' + @var0 + '];');
ALTER TABLE `People` ALTER COLUMN `LuckyNumber` int NOT NULL;
EXEC sp_addextendedproperty 'MS_Description', 'My Comment', 'SCHEMA', 'dbo', 'TABLE', 'People', 'COLUMN', 'LuckyNumber';
");
        }

        [ConditionalFact]
        public void AlterColumnOperation_with_different_comment_to_existing()
        {
            Generate(
                modelBuilder => modelBuilder
                    .HasAnnotation(CoreAnnotationNames.ProductVersion, "1.1.0")
                    .Entity(
                        "Person", x =>
                        {
                            x.Property<string>("Name").HasComment("My Comment");
                        }),
                new AlterColumnOperation
                {
                    Table = "People",
                    Schema = null,
                    Name = "Name",
                    ClrType = typeof(string),
                    IsNullable = false,
                    Comment = "My Comment 2",
                    OldColumn = new ColumnOperation
                    {
                        ClrType = typeof(string),
                        IsNullable = true,
                        Comment = "My Comment"
                    }
                });

            AssertSql(
                $@"DECLARE @var0 sysname;
SELECT @var0 = `d`.`name`
FROM `sys`.`default_constraints` `d`
INNER JOIN `sys`.`columns` `c` ON `d`.`parent_column_id` = `c`.`column_id` AND `d`.`parent_object_id` = `c`.`object_id`
WHERE (`d`.`parent_object_id` = OBJECT_ID('`People`') AND `c`.`name` = 'Name');
IF @var0 IS NOT NULL EXEC('ALTER TABLE `People` DROP CONSTRAINT [' + @var0 + '];');
ALTER TABLE `People` ALTER COLUMN `Name` nvarchar(max) NOT NULL;
EXEC sp_dropextendedproperty 'MS_Description', 'SCHEMA', 'dbo', 'TABLE', 'People', 'COLUMN', 'Name';
EXEC sp_addextendedproperty 'MS_Description', 'My Comment 2', 'SCHEMA', 'dbo', 'TABLE', 'People', 'COLUMN', 'Name';
");
        }

        [ConditionalFact]
        public void AlterColumnOperation_removing_comment()
        {
            Generate(
                modelBuilder => modelBuilder
                    .HasAnnotation(CoreAnnotationNames.ProductVersion, "1.1.0")
                    .Entity(
                        "Person", x =>
                        {
                            x.Property<string>("Name").HasComment("My Comment");
                        }),
                new AlterColumnOperation
                {
                    Table = "People",
                    Schema = null,
                    Name = "Name",
                    ClrType = typeof(string),
                    IsNullable = false,
                    OldColumn = new ColumnOperation
                    {
                        ClrType = typeof(string),
                        IsNullable = true,
                        Comment = "My Comment"
                    }
                });

            AssertSql(
                $@"DECLARE @var0 sysname;
SELECT @var0 = `d`.`name`
FROM `sys`.`default_constraints` `d`
INNER JOIN `sys`.`columns` `c` ON `d`.`parent_column_id` = `c`.`column_id` AND `d`.`parent_object_id` = `c`.`object_id`
WHERE (`d`.`parent_object_id` = OBJECT_ID('`People`') AND `c`.`name` = 'Name');
IF @var0 IS NOT NULL EXEC('ALTER TABLE `People` DROP CONSTRAINT [' + @var0 + '];');
ALTER TABLE `People` ALTER COLUMN `Name` nvarchar(max) NOT NULL;
EXEC sp_dropextendedproperty 'MS_Description', 'SCHEMA', 'dbo', 'TABLE', 'People', 'COLUMN', 'Name';
");
        }

        [ConditionalFact]
        public virtual void CreateDatabaseOperation()
        {
            Generate(
                new JetCreateDatabaseOperation { Name = "Northwind" });

            AssertSql(
                $@"CREATE DATABASE `Northwind`;
GO

IF SERVERPROPERTY('EngineEdition') <> 5
BEGIN
    ALTER DATABASE `Northwind` SET READ_COMMITTED_SNAPSHOT ON;
END;
");
        }

        [ConditionalFact]
        public virtual void CreateDatabaseOperation_with_filename()
        {
            Generate(
                new JetCreateDatabaseOperation { Name = "Narf.mdf" });

            var expectedFile = Path.GetFullPath("Narf.mdf");
            var expectedLog = Path.GetFullPath("Narf_log.ldf");

            AssertSql(
                $@"CREATE DATABASE `Northwind`
ON (NAME = 'Narf', FILENAME = '{expectedFile}')
LOG ON (NAME = 'Narf_log', FILENAME = '{expectedLog}');
GO

IF SERVERPROPERTY('EngineEdition') <> 5
BEGIN
    ALTER DATABASE `Northwind` SET READ_COMMITTED_SNAPSHOT ON;
END;
");
        }

        [ConditionalFact]
        public virtual void CreateDatabaseOperation_with_filename_and_datadirectory()
        {
            var baseDirectory = AppDomain.CurrentDomain.BaseDirectory;

            Generate(
                new JetCreateDatabaseOperation { Name = "|DataDirectory|Narf.mdf" });

            var expectedFile = Path.Combine(baseDirectory, "Narf.mdf");
            var expectedLog = Path.Combine(baseDirectory, "Narf_log.ldf");

            AssertSql(
                $@"CREATE DATABASE `Northwind`
ON (NAME = 'Narf', FILENAME = '{expectedFile}')
LOG ON (NAME = 'Narf_log', FILENAME = '{expectedLog}');
GO

IF SERVERPROPERTY('EngineEdition') <> 5
BEGIN
    ALTER DATABASE `Northwind` SET READ_COMMITTED_SNAPSHOT ON;
END;
");
        }

        [ConditionalFact]
        public virtual void CreateDatabaseOperation_with_filename_and_custom_datadirectory()
        {
            var dataDirectory = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, "Data");

            AppDomain.CurrentDomain.SetData("DataDirectory", dataDirectory);

            Generate(
                new JetCreateDatabaseOperation { Name = "|DataDirectory|Narf.mdf" });

            AppDomain.CurrentDomain.SetData("DataDirectory", null);

            var expectedFile = Path.Combine(dataDirectory, "Narf.mdf");
            var expectedLog = Path.Combine(dataDirectory, "Narf_log.ldf");

            AssertSql(
                $@"CREATE DATABASE `Northwind`
ON (NAME = 'Narf', FILENAME = '{expectedFile}')
LOG ON (NAME = 'Narf_log', FILENAME = '{expectedLog}');
GO

IF SERVERPROPERTY('EngineEdition') <> 5
BEGIN
    ALTER DATABASE `Northwind` SET READ_COMMITTED_SNAPSHOT ON;
END;
");
        }

        [ConditionalFact]
        public virtual void AlterDatabaseOperation_memory_optimized()
        {
            Generate(
                new AlterDatabaseOperation());

            Assert.Contains(
                "CONTAINS MEMORY_OPTIMIZED_DATA;",
                Sql);
        }

        public override void CreateIndexOperation_nonunique()
        {
            base.CreateIndexOperation_nonunique();

            AssertSql(
                $@"CREATE INDEX `IX_People_Name` ON `People` (`Name`);
");
        }

        public override void CreateIndexOperation_unique()
        {
            base.CreateIndexOperation_unique();

            AssertSql(
                $@"CREATE UNIQUE INDEX `IX_People_Name` ON `People` (`FirstName`, `LastName`) WHERE `FirstName` IS NOT NULL AND `LastName` IS NOT NULL;
");
        }

        [ConditionalFact]
        public virtual void CreateIndexOperation_unique_non_legacy()
        {
            Generate(
                modelBuilder => modelBuilder.HasAnnotation(CoreAnnotationNames.ProductVersion, "2.0.0"),
                new CreateIndexOperation
                {
                    Name = "IX_People_Name",
                    Table = "People",
                    Schema = null,
                    Columns = new[] { "FirstName", "LastName" },
                    IsUnique = true
                });

            AssertSql(
                $@"CREATE UNIQUE INDEX `IX_People_Name` ON `People` (`FirstName`, `LastName`);
");
        }

        [ConditionalFact]
        public virtual void CreateIndexOperation_clustered()
        {
            Generate(
                new CreateIndexOperation
                {
                    Name = "IX_People_Name",
                    Table = "People",
                    Columns = new[] { "Name" },
                });

            AssertSql(
                $@"CREATE CLUSTERED INDEX `IX_People_Name` ON `People` (`Name`);
");
        }

        [ConditionalFact]
        public virtual void CreateIndexOperation_unique_clustered()
        {
            Generate(
                new CreateIndexOperation
                {
                    Name = "IX_People_Name",
                    Table = "People",
                    Columns = new[] { "Name" },
                    IsUnique = true,
                });

            AssertSql(
                $@"CREATE UNIQUE CLUSTERED INDEX `IX_People_Name` ON `People` (`Name`);
");
        }

        [ConditionalFact]
        public virtual void CreateIndexOperation_with_include()
        {
            Generate(
                new CreateIndexOperation
                {
                    Name = "IX_People_Name",
                    Table = "People",
                    Columns = new[] { "Name" },
                    [JetAnnotationNames.Include] = new[] { "FirstName", "LastName" }
                });

            AssertSql(
                $@"CREATE INDEX `IX_People_Name` ON `People` (`Name`) INCLUDE (`FirstName`, `LastName`);
");
        }

        [ConditionalFact]
        public virtual void CreateIndexOperation_with_include_and_filter()
        {
            Generate(
                new CreateIndexOperation
                {
                    Name = "IX_People_Name",
                    Table = "People",
                    Columns = new[] { "Name" },
                    Filter = "`Name` IS NOT NULL AND <> ''",
                    [JetAnnotationNames.Include] = new[] { "FirstName", "LastName" }
                });

            AssertSql(
                $@"CREATE INDEX `IX_People_Name` ON `People` (`Name`) INCLUDE (`FirstName`, `LastName`) WHERE `Name` IS NOT NULL AND <> '';
");
        }

        [ConditionalFact]
        public virtual void CreateIndexOperation_unique_with_include()
        {
            Generate(
                new CreateIndexOperation
                {
                    Name = "IX_People_Name",
                    Table = "People",
                    Columns = new[] { "Name" },
                    IsUnique = true,
                    [JetAnnotationNames.Include] = new[] { "FirstName", "LastName" }
                });

            AssertSql(
                $@"CREATE UNIQUE INDEX `IX_People_Name` ON `People` (`Name`) INCLUDE (`FirstName`, `LastName`) WHERE `Name` IS NOT NULL;
");
        }

        [ConditionalFact]
        public virtual void CreateIndexOperation_unique_with_include_and_filter()
        {
            Generate(
                new CreateIndexOperation
                {
                    Name = "IX_People_Name",
                    Table = "People",
                    Columns = new[] { "Name" },
                    IsUnique = true,
                    Filter = "`Name` IS NOT NULL AND <> ''",
                    [JetAnnotationNames.Include] = new[] { "FirstName", "LastName" }
                });

            AssertSql(
                $@"CREATE UNIQUE INDEX `IX_People_Name` ON `People` (`Name`) INCLUDE (`FirstName`, `LastName`) WHERE `Name` IS NOT NULL AND <> '';
");
        }

        [ConditionalFact]
        public virtual void CreateIndexOperation_unique_with_include_and_filter_online()
        {
            Generate(
                new CreateIndexOperation
                {
                    Name = "IX_People_Name",
                    Table = "People",
                    Columns = new[] { "Name" },
                    IsUnique = true,
                    Filter = "`Name` IS NOT NULL AND <> ''",
                    [JetAnnotationNames.Include] = new[] { "FirstName", "LastName" },
                });

            AssertSql(
                $@"CREATE UNIQUE INDEX `IX_People_Name` ON `People` (`Name`) INCLUDE (`FirstName`, `LastName`) WHERE `Name` IS NOT NULL AND <> '' WITH (ONLINE = ON);
");
        }

        [ConditionalFact]
        public virtual void CreateIndexOperation_unique_with_include_non_legacy()
        {
            Generate(
                modelBuilder => modelBuilder.HasAnnotation(CoreAnnotationNames.ProductVersion, "2.0.0"),
                new CreateIndexOperation
                {
                    Name = "IX_People_Name",
                    Table = "People",
                    Columns = new[] { "Name" },
                    IsUnique = true,
                    [JetAnnotationNames.Include] = new[] { "FirstName", "LastName" }
                });

            AssertSql(
                $@"CREATE UNIQUE INDEX `IX_People_Name` ON `People` (`Name`) INCLUDE (`FirstName`, `LastName`);
");
        }

        [ConditionalFact]
        public virtual void CreateIndexOperation_unique_bound_null()
        {
            Generate(
                modelBuilder => modelBuilder.Entity("People").Property<string>("Name"),
                new CreateIndexOperation
                {
                    Name = "IX_People_Name",
                    Table = "People",
                    Columns = new[] { "Name" },
                    IsUnique = true
                });

            AssertSql(
                $@"CREATE UNIQUE INDEX `IX_People_Name` ON `People` (`Name`) WHERE `Name` IS NOT NULL;
");
        }

        [ConditionalFact]
        public virtual void CreateIndexOperation_unique_bound_not_null()
        {
            Generate(
                modelBuilder => modelBuilder.Entity(
                    "People", x =>
                    {
                        x.Property<string>("Name").IsRequired();
                        x.HasKey("Name");
                    }),
                new CreateIndexOperation
                {
                    Name = "IX_People_Name",
                    Table = "People",
                    Columns = new[] { "Name" },
                    IsUnique = true
                });

            AssertSql(
                $@"CREATE UNIQUE INDEX `IX_People_Name` ON `People` (`Name`);
");
        }

        [ConditionalFact]
        public virtual void CreateIndexOperation_memoryOptimized_unique_nullable()
        {
            Generate(
                modelBuilder => modelBuilder.Entity(
                    "People", x =>
                    {
                        x.Property<int>("Id");
                        x.HasKey("Id");
                    }),
                new CreateIndexOperation
                {
                    Name = "IX_People_Name",
                    Schema = null,
                    Table = "People",
                    Columns = new[] { "Name" },
                    IsUnique = true
                });

            AssertSql(
                $@"ALTER TABLE `People` ADD INDEX `IX_People_Name` (`Name`);
");
        }

        [ConditionalFact]
        public virtual void CreateIndexOperation_memoryOptimized_unique_nullable_with_filter()
        {
            Generate(
                modelBuilder => modelBuilder.Entity(
                    "People", x =>
                    {
                        x.Property<int>("Id");
                        x.HasKey("Id");
                    }),
                new CreateIndexOperation
                {
                    Name = "IX_People_Name",
                    Table = "People",
                    Columns = new[] { "Name" },
                    IsUnique = true,
                    Filter = "`Name` IS NOT NULL AND <> ''"
                });

            AssertSql(
                $@"ALTER TABLE `People` ADD INDEX `IX_People_Name` (`Name`);
");
        }

        [ConditionalFact]
        public virtual void CreateIndexOperation_memoryOptimized_unique_nonclustered_not_nullable()
        {
            Generate(
                modelBuilder => modelBuilder.Entity(
                    "People", x =>
                    {
                        x.HasKey("Name");
                    }),
                new CreateIndexOperation
                {
                    Name = "IX_People_Name",
                    Table = "People",
                    Columns = new[] { "Name" },
                    IsUnique = true,
                });

            AssertSql(
                $@"ALTER TABLE `People` ADD INDEX `IX_People_Name` UNIQUE NONCLUSTERED (`Name`);
");
        }

        [ConditionalFact]
        public virtual void CreateSchemaOperation()
        {
            Generate(
                new EnsureSchemaOperation { Name = "my" });

            AssertSql(
                $@"IF SCHEMA_ID('my') IS NULL EXEC('CREATE SCHEMA `my`;');
");
        }

        [ConditionalFact]
        public virtual void CreateSchemaOperation_dbo()
        {
            Generate(
                new EnsureSchemaOperation { Name = null });

            AssertSql($@"");
        }

        public override void DropColumnOperation()
        {
            base.DropColumnOperation();

            AssertSql(
                $@"DECLARE @var0 sysname;
SELECT @var0 = `d`.`name`
FROM `sys`.`default_constraints` `d`
INNER JOIN `sys`.`columns` `c` ON `d`.`parent_column_id` = `c`.`column_id` AND `d`.`parent_object_id` = `c`.`object_id`
WHERE (`d`.`parent_object_id` = OBJECT_ID('`People`') AND `c`.`name` = 'LuckyNumber');
IF @var0 IS NOT NULL EXEC('ALTER TABLE `People` DROP CONSTRAINT [' + @var0 + '];');
ALTER TABLE `People` DROP COLUMN `LuckyNumber`;
");
        }

        [ConditionalFact]
        public virtual void DropDatabaseOperation()
        {
            Generate(
                new JetDropDatabaseOperation { Name = "Northwind" });

            AssertSql(
                $@"IF SERVERPROPERTY('EngineEdition') <> 5
BEGIN
    ALTER DATABASE `Northwind` SET SINGLE_USER WITH ROLLBACK IMMEDIATE;
END;
GO

DROP DATABASE `Northwind`;
");
        }

        public override void DropIndexOperation()
        {
            base.DropIndexOperation();

            AssertSql(
                $@"DROP INDEX `IX_People_Name` ON `People`;
");
        }

        [ConditionalFact]
        public virtual void DropIndexOperation_memoryOptimized()
        {
            Generate(
                modelBuilder => modelBuilder.Entity(
                    "People", x =>
                    {
                        x.Property<int>("Id");
                        x.HasKey("Id");
                    }),
                new DropIndexOperation { Name = "IX_People_Name", Table = "People" });

            AssertSql(
                $@"ALTER TABLE `People` DROP INDEX `IX_People_Name`;
");
        }

        [ConditionalFact]
        public virtual void MoveSequenceOperation_legacy()
        {
            Generate(
                new RenameSequenceOperation
                {
                    Name = "EntityFrameworkHiLoSequence",
                    Schema = null,
                    NewSchema = "my"
                });

            AssertSql(
                $@"ALTER SCHEMA `my` TRANSFER `EntityFrameworkHiLoSequence`;
");
        }

        [ConditionalFact]
        public virtual void MoveSequenceOperation()
        {
            Generate(
                modelBuilder => modelBuilder.HasAnnotation(CoreAnnotationNames.ProductVersion, "2.1.0"),
                new RenameSequenceOperation
                {
                    Name = "EntityFrameworkHiLoSequence",
                    Schema = null,
                    NewName = "EntityFrameworkHiLoSequence",
                    NewSchema = "my"
                });

            AssertSql(
                $@"ALTER SCHEMA `my` TRANSFER `EntityFrameworkHiLoSequence`;
");
        }

        [ConditionalFact]
        public virtual void MoveSequenceOperation_into_default()
        {
            Generate(
                modelBuilder => modelBuilder.HasAnnotation(CoreAnnotationNames.ProductVersion, "2.1.0"),
                new RenameSequenceOperation
                {
                    Name = "EntityFrameworkHiLoSequence",
                    Schema = null,
                    NewName = "EntityFrameworkHiLoSequence"
                });

            AssertSql(
                $@"DECLARE @defaultSchema sysname = SCHEMA_NAME();
EXEC('ALTER SCHEMA [' + @defaultSchema + '] TRANSFER `EntityFrameworkHiLoSequence`;');
");
        }

        [ConditionalFact]
        public virtual void MoveTableOperation_legacy()
        {
            Generate(
                new RenameTableOperation
                {
                    Name = "People",
                    Schema = null,
                    NewSchema = "hr"
                });

            AssertSql(
                $@"ALTER SCHEMA `hr` TRANSFER `People`;
");
        }

        [ConditionalFact]
        public virtual void MoveTableOperation()
        {
            Generate(
                modelBuilder => modelBuilder.HasAnnotation(CoreAnnotationNames.ProductVersion, "2.1.0"),
                new RenameTableOperation
                {
                    Name = "People",
                    Schema = null,
                    NewName = "People",
                    NewSchema = "hr"
                });

            AssertSql(
                $@"ALTER SCHEMA `hr` TRANSFER `People`;
");
        }

        [ConditionalFact]
        public virtual void MoveTableOperation_into_default()
        {
            Generate(
                modelBuilder => modelBuilder.HasAnnotation(CoreAnnotationNames.ProductVersion, "2.1.0"),
                new RenameTableOperation
                {
                    Name = "People",
                    Schema = null,
                    NewName = "People"
                });

            AssertSql(
                $@"DECLARE @defaultSchema sysname = SCHEMA_NAME();
EXEC('ALTER SCHEMA [' + @defaultSchema + '] TRANSFER `People`;');
");
        }

        [ConditionalFact]
        public virtual void RenameColumnOperation()
        {
            Generate(
                new RenameColumnOperation
                {
                    Table = "People",
                    Schema = null,
                    Name = "Name",
                    NewName = "FullName"
                });

            AssertSql(
                $@"EXEC sp_rename '`People`.`Name`', 'FullName', 'COLUMN';
");
        }

        [ConditionalFact]
        public virtual void RenameIndexOperation()
        {
            Generate(
                new RenameIndexOperation
                {
                    Table = "People",
                    Schema = null,
                    Name = "IX_People_Name",
                    NewName = "IX_People_FullName"
                });

            AssertSql(
                $@"EXEC sp_rename '`People`.`IX_People_Name`', 'IX_People_FullName', 'INDEX';
");
        }

        [ConditionalFact]
        public virtual void RenameIndexOperations_throws_when_no_table()
        {
            var migrationBuilder = new MigrationBuilder("Jet");

            migrationBuilder.RenameIndex(
                name: "IX_OldIndex",
                newName: "IX_NewIndex");

            var ex = Assert.Throws<InvalidOperationException>(
                () => Generate(migrationBuilder.Operations.ToArray()));

            Assert.Equal(JetStrings.IndexTableRequired, ex.Message);
        }

        [ConditionalFact]
        public virtual void RenameSequenceOperation_legacy()
        {
            Generate(
                new RenameSequenceOperation
                {
                    Name = "EntityFrameworkHiLoSequence",
                    Schema = null,
                    NewName = "MySequence"
                });

            AssertSql(
                $@"EXEC sp_rename '`EntityFrameworkHiLoSequence`', 'MySequence';
");
        }

        [ConditionalFact]
        public virtual void RenameSequenceOperation()
        {
            Generate(
                modelBuilder => modelBuilder.HasAnnotation(CoreAnnotationNames.ProductVersion, "2.1.0"),
                new RenameSequenceOperation
                {
                    Name = "EntityFrameworkHiLoSequence",
                    Schema = null,
                    NewName = "MySequence",
                    NewSchema = null
                });

            AssertSql(
                $@"EXEC sp_rename '`EntityFrameworkHiLoSequence`', 'MySequence';
");
        }

        [ConditionalFact]
        public override void RenameTableOperation_legacy()
        {
            base.RenameTableOperation_legacy();

            AssertSql(
                $@"EXEC sp_rename '`People`', 'Person';
");
        }

        [ConditionalFact]
        public override void RenameTableOperation()
        {
            base.RenameTableOperation();

            AssertSql(
                $@"EXEC sp_rename '`People`', 'Person';
");
        }

        [ConditionalFact]
        public virtual void SqlOperation_handles_backslash()
        {
            Generate(
                new SqlOperation { Sql = @"-- Multiline \" + EOL + "comment" });

            AssertSql(
                $@"-- Multiline comment
");
        }

        [ConditionalFact]
        public virtual void SqlOperation_ignores_sequential_gos()
        {
            Generate(
                new SqlOperation { Sql = "-- Ready set" + EOL + "GO" + EOL + "GO" });

            AssertSql(
                $@"-- Ready set
");
        }

        [ConditionalFact]
        public virtual void SqlOperation_handles_go()
        {
            Generate(
                new SqlOperation { Sql = "-- I" + EOL + "go" + EOL + "-- Too" });

            AssertSql(
                $@"-- I
GO

-- Too
");
        }

        [ConditionalFact]
        public virtual void SqlOperation_handles_go_with_count()
        {
            Generate(
                new SqlOperation { Sql = "-- I" + EOL + "GO 2" });

            AssertSql(
                $@"-- I
GO

-- I
");
        }

        [ConditionalFact]
        public virtual void SqlOperation_ignores_non_go()
        {
            Generate(
                new SqlOperation { Sql = "-- I GO 2" });

            AssertSql(
                $@"-- I GO 2
");
        }

        public override void InsertDataOperation()
        {
            base.InsertDataOperation();

            AssertSql(
                $@"IF EXISTS (SELECT * FROM `sys`.`identity_columns` WHERE `name` IN ('Id', 'Full Name') AND `object_id` = OBJECT_ID('`People`'))
    SET IDENTITY_INSERT `People` ON;
INSERT INTO `People` (`Id`, `Full Name`)
VALUES (0, NULL),
(1, 'Daenerys Targaryen'),
(2, 'John Snow'),
(3, 'Arya Stark'),
(4, 'Harry Strickland');
IF EXISTS (SELECT * FROM `sys`.`identity_columns` WHERE `name` IN ('Id', 'Full Name') AND `object_id` = OBJECT_ID('`People`'))
    SET IDENTITY_INSERT `People` OFF;
");
        }

        public override void DeleteDataOperation_simple_key()
        {
            base.DeleteDataOperation_simple_key();

            // TODO remove rowcount
            AssertSql(
                $@"DELETE FROM `People`
WHERE `Id` = 2;
SELECT @@ROWCOUNT;

DELETE FROM `People`
WHERE `Id` = 4;
SELECT @@ROWCOUNT;

");
        }

        public override void DeleteDataOperation_composite_key()
        {
            base.DeleteDataOperation_composite_key();

            // TODO remove rowcount
            AssertSql(
                $@"DELETE FROM `People`
WHERE `First Name` = 'Hodor' AND `Last Name` IS NULL;
SELECT @@ROWCOUNT;

DELETE FROM `People`
WHERE `First Name` = 'Daenerys' AND `Last Name` = 'Targaryen';
SELECT @@ROWCOUNT;

");
        }

        public override void UpdateDataOperation_simple_key()
        {
            base.UpdateDataOperation_simple_key();

            // TODO remove rowcount
            AssertSql(
                $@"UPDATE `People` SET `Full Name` = 'Daenerys Stormborn'
WHERE `Id` = 1;
SELECT @@ROWCOUNT;

UPDATE `People` SET `Full Name` = 'Homeless Harry Strickland'
WHERE `Id` = 4;
SELECT @@ROWCOUNT;

");
        }

        public override void UpdateDataOperation_composite_key()
        {
            base.UpdateDataOperation_composite_key();

            // TODO remove rowcount
            AssertSql(
                $@"UPDATE `People` SET `First Name` = 'Hodor'
WHERE `Id` = 0 AND `Last Name` IS NULL;
SELECT @@ROWCOUNT;

UPDATE `People` SET `First Name` = 'Harry'
WHERE `Id` = 4 AND `Last Name` = 'Strickland';
SELECT @@ROWCOUNT;

");
        }

        public override void UpdateDataOperation_multiple_columns()
        {
            base.UpdateDataOperation_multiple_columns();

            // TODO remove rowcount
            AssertSql(
                $@"UPDATE `People` SET `First Name` = 'Daenerys', `Nickname` = 'Dany'
WHERE `Id` = 1;
SELECT @@ROWCOUNT;

UPDATE `People` SET `First Name` = 'Harry', `Nickname` = 'Homeless'
WHERE `Id` = 4;
SELECT @@ROWCOUNT;

");
        }

        public JetMigrationSqlGeneratorTest()
            : base(JetTestHelpers.Instance)
        {
        }
    }
}