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// Copyright (c) Microsoft Open Technologies, Inc. All rights reserved. See License.txt in the project root for license information.
namespace System.Data.Entity.Migrations.Model
{
using System.Data.Entity.Core.Metadata.Edm;
using System.Data.Entity.Resources;
using Xunit;
public class AddColumnOperationTests
{
[Fact]
public void Can_get_and_set_table_and_column_info()
{
var column = new ColumnModel(PrimitiveTypeKind.Decimal);
var addColumnOperation = new AddColumnOperation("T", column);
Assert.Equal("T", addColumnOperation.Table);
Assert.Same(column, addColumnOperation.Column);
}
[Fact]
public void Inverse_should_produce_drop_column_operation()
{
var column = new ColumnModel(PrimitiveTypeKind.Decimal)
{
Name = "C"
};
var addColumnOperation
= new AddColumnOperation("T", column)
{
IsSystem = true
};
var dropColumnOperation = (DropColumnOperation)addColumnOperation.Inverse;
Assert.Equal("C", dropColumnOperation.Name);
Assert.Equal("T", dropColumnOperation.Table);
Assert.True(dropColumnOperation.IsSystem);
}
[Fact]
public void Ctor_should_validate_preconditions()
{
Assert.Equal(
new ArgumentException(Strings.ArgumentIsNullOrWhitespace("table")).Message,
Assert.Throws<ArgumentException>(() => new AddColumnOperation(null, new ColumnModel(PrimitiveTypeKind.Time))).Message);
Assert.Equal("column", Assert.Throws<ArgumentNullException>(() => new AddColumnOperation("T", null)).ParamName);
}
}
}
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