public void SetNotNullable_SetsColumnIfNotSettingExistingRowValues()
{
var builderMock = new Mock<IColumnExpressionBuilder>();
var contextMock = new Mock<IMigrationContext>();
builderMock.SetupGet(n => n.Column.ModificationType).Returns(ColumnModificationType.Create);
var helper = new ColumnExpressionBuilderHelper(builderMock.Object, contextMock.Object);
helper.SetNullable(false);
builderMock.VerifySet(n => n.Column.IsNullable = false);
}
public void SetNotNullable_DoesntSetIfSettingExistingRowValues()
{
var builderMock = new Mock<IColumnExpressionBuilder>();
var contextMock = new Mock<IMigrationContext>();
builderMock.SetupGet(n => n.Column.ModificationType).Returns(ColumnModificationType.Create);
contextMock.Setup(n => n.Expressions.Add(It.IsAny<IMigrationExpression>()));
var helper = new ColumnExpressionBuilderHelper(builderMock.Object, contextMock.Object);
helper.SetExistingRowsTo("test");
helper.SetNullable(false);
builderMock.VerifySet(n => n.Column.IsNullable = false, Times.Never());
}
public void SetNotNullable_DoesntSetIfSettingExistingRowValues()
{
var builderMock = new Mock<IColumnExpressionBuilder>();
var contextMock = new Mock<IMigrationContext>();
var columnMock = new Mock<ColumnDefinition>();
var columnCloneMock = new Mock<ColumnDefinition>();
builderMock.SetupGet(n => n.Column).Returns(columnMock.Object);
columnMock.SetupGet(n => n.ModificationType).Returns(ColumnModificationType.Create);
columnMock.Setup(n => n.Clone()).Returns(columnCloneMock.Object);
contextMock.Setup(n => n.Expressions.Add(It.IsAny<IMigrationExpression>()));
var helper = new ColumnExpressionBuilderHelper(builderMock.Object, contextMock.Object);
helper.SetExistingRowsTo("test");
helper.SetNullable(false);
//The column IsNullable should NOT be set to false, instead an internal clone
//should have been created, which will have IsNullable set to false.
columnMock.VerifySet(n => n.IsNullable = false, Times.Never());
columnCloneMock.VerifySet(n => n.IsNullable = false, Times.Once());
}
private void VerifyColumnModification(Action<ColumnExpressionBuilderHelper> helperCall, Action<ColumnDefinition> expectedAction)
{
var builderMock = new Mock<IColumnExpressionBuilder>();
var contextMock = new Mock<IMigrationContext>();
builderMock.SetupGet(n => n.Column.ModificationType).Returns(ColumnModificationType.Create);
var helper = new ColumnExpressionBuilderHelper(builderMock.Object, contextMock.Object);
helper.SetNullable(false);
builderMock.VerifySet(n => n.Column.IsNullable = false);
}
public void SetExistingRows_AfterNotNullableSetsOriginalColumnNullable()
{
var builderMock = new Mock<IColumnExpressionBuilder>();
var contextMock = new Mock<IMigrationContext>();
List<IMigrationExpression> addedExpressions = new List<IMigrationExpression>();
contextMock.SetupGet(n => n.Expressions).Returns(addedExpressions);
builderMock.SetupGet(n => n.Column.ModificationType).Returns(ColumnModificationType.Create);
builderMock.Setup(n => n.Column.Clone()).Returns(new ColumnDefinition());
var helper = new ColumnExpressionBuilderHelper(builderMock.Object, contextMock.Object);
helper.SetNullable(false);
helper.SetExistingRowsTo(5);
//Check that column is nullable. This is because a later alter column statement will mark it non nullable.
builderMock.VerifySet(n => n.Column.IsNullable = true);
}
public void SetExistingRows_AfterNotNullableAddsAlterColumnExpression()
{
var builderMock = new Mock<IColumnExpressionBuilder>();
var contextMock = new Mock<IMigrationContext>();
List<IMigrationExpression> addedExpressions = new List<IMigrationExpression>();
contextMock.SetupGet(n => n.Expressions).Returns(addedExpressions);
builderMock.SetupGet(n => n.SchemaName).Returns("Fred");
builderMock.SetupGet(n => n.TableName).Returns("Flinstone");
var createColColumn = new ColumnDefinition
{
ModificationType = ColumnModificationType.Create,
Name = "ColName",
Type = System.Data.DbType.String,
CustomType = "CustomType",
Size = 12,
Precision = 2
};
builderMock.SetupGet(n => n.Column).Returns(createColColumn);
var helper = new ColumnExpressionBuilderHelper(builderMock.Object, contextMock.Object);
helper.SetNullable(false);
helper.SetExistingRowsTo(5);
Assert.AreEqual(2, addedExpressions.Count);
Assert.IsInstanceOf<UpdateDataExpression>(addedExpressions[0]);
Assert.IsInstanceOf<AlterColumnExpression>(addedExpressions[1]);
//TODO: refactor to use same method of checking as "CallingUniqueAddsIndexExpressionToContext" test does.
AlterColumnExpression alterColExpr = (AlterColumnExpression)addedExpressions[1];
Assert.AreNotSame(builderMock.Object.Column, alterColExpr.Column);
Assert.AreEqual("Fred", alterColExpr.SchemaName);
Assert.AreEqual("Flinstone", alterColExpr.TableName);
//Check that the the 'alter' expression column definition is not the same instance as the
//create column definition.
Assert.IsNotNull(alterColExpr.Column);
var alterColColumn = alterColExpr.Column;
Assert.AreNotSame(createColColumn, alterColColumn);
//Check that all properties on the alter expression column have been cloned.
//Could also test this by mocking .clone method to return another mock etc, just doing
//it here tho by comparing values.
Assert.AreEqual(ColumnModificationType.Alter, alterColColumn.ModificationType);
Assert.AreEqual("ColName", alterColColumn.Name);
Assert.AreEqual(System.Data.DbType.String, alterColColumn.Type);
Assert.AreEqual("CustomType", alterColColumn.CustomType);
Assert.AreEqual(false, alterColColumn.IsNullable);
Assert.AreEqual(12, alterColColumn.Size);
Assert.AreEqual(2, alterColColumn.Precision);
}
public void SetExistingRows_AfterNotNullableAddsAlterColumnExpression()
{
var builderMock = new Mock<IColumnExpressionBuilder>();
var contextMock = new Mock<IMigrationContext>();
List<IMigrationExpression> addedExpressions = new List<IMigrationExpression>();
contextMock.SetupGet(n => n.Expressions).Returns(addedExpressions);
builderMock.SetupGet(n => n.SchemaName).Returns("Fred");
builderMock.SetupGet(n => n.TableName).Returns("Flinstone");
builderMock.SetupGet(n => n.Column.ModificationType).Returns(ColumnModificationType.Create);
builderMock.SetupGet(n => n.Column.Name).Returns("ColName");
builderMock.SetupGet(n => n.Column.Type).Returns(System.Data.DbType.Int32);
builderMock.SetupGet(n => n.Column.CustomType).Returns("CustomType");
var helper = new ColumnExpressionBuilderHelper(builderMock.Object, contextMock.Object);
helper.SetNullable(false);
helper.SetExistingRowsTo(5);
Assert.AreEqual(2, addedExpressions.Count);
Assert.IsInstanceOf<UpdateDataExpression>(addedExpressions[0]);
Assert.IsInstanceOf<AlterColumnExpression>(addedExpressions[1]);
//TODO: refactor to use same method of checking as "CallingUniqueAddsIndexExpressionToContext" test does.
AlterColumnExpression alterColExpr = (AlterColumnExpression)addedExpressions[1];
Assert.AreNotSame(builderMock.Object.Column, alterColExpr.Column);
Assert.AreEqual("Fred", alterColExpr.SchemaName);
Assert.AreEqual("Flinstone", alterColExpr.TableName);
Assert.AreEqual(ColumnModificationType.Alter, alterColExpr.Column.ModificationType);
Assert.AreEqual("ColName", alterColExpr.Column.Name);
Assert.AreEqual(System.Data.DbType.Int32, alterColExpr.Column.Type);
Assert.AreEqual("CustomType", alterColExpr.Column.CustomType);
Assert.AreEqual(false, alterColExpr.Column.IsNullable);
}