public void VisitNewExpression_ForObjectID_GeneratesNullCheckInInMemoryProjection()
{
var constructorInfo = typeof(ObjectID).GetConstructor(new[] { typeof(string), typeof(object) });
Assertion.IsNotNull(constructorInfo);
var newObjectIDExpression = Expression.New(
constructorInfo,
new SqlColumnDefinitionExpression(typeof(string), "t0", "CustomerClassID", false),
Expression.Convert(new SqlColumnDefinitionExpression(typeof(Guid), "t0", "CustomerID", false), typeof(object)));
var compoundExpression = NamedExpression.CreateNewExpressionWithNamedArguments(newObjectIDExpression);
ExtendedSqlGeneratingOuterSelectExpressionVisitor.GenerateSql(compoundExpression, _commandBuilder, _stageMock, _someSetOperationsMode);
Assert.That(_commandBuilder.GetCommandText(), Is.EqualTo("[t0].[CustomerClassID] AS [m0],[t0].[CustomerID] AS [m1]"));
Expression <Func <IDatabaseResultRow, ObjectID> > expectedInMemoryProjection =
row => ExtendedSqlGeneratingOuterSelectExpressionVisitor.GetObjectIDOrNull(
row.GetValue <string> (new ColumnID("m0", 0)),
row.GetValue <object> (new ColumnID("m1", 1)));
var expectedInMemoryProjectionBody = PartialEvaluatingExpressionVisitor.EvaluateIndependentSubtrees(
expectedInMemoryProjection.Body,
new TestEvaluatableExpressionFilter());
SqlExpressionTreeComparer.CheckAreEqualTrees(expectedInMemoryProjectionBody, _commandBuilder.GetInMemoryProjectionBody());
}
public void GenerateTextForOuterSelectExpression_UsesExtendedVisitor()
{
var constructorInfo = typeof(ObjectID).GetConstructor(new[] { typeof(string), typeof(object) });
Assertion.IsNotNull(constructorInfo);
var newObjectIDExpression = Expression.New(
constructorInfo,
new SqlColumnDefinitionExpression(typeof(string), "t0", "CustomerClassID", false),
Expression.Convert(new SqlColumnDefinitionExpression(typeof(Guid), "t0", "CustomerID", false), typeof(object)));
var compoundExpression = NamedExpression.CreateNewExpressionWithNamedArguments(newObjectIDExpression);
var someSetOperationsMode = SetOperationsMode.StatementIsSetCombined;
_stage.GenerateTextForOuterSelectExpression(_commandBuilder, compoundExpression, someSetOperationsMode);
Assert.That(_commandBuilder.GetInMemoryProjectionBody().NodeType, Is.EqualTo(ExpressionType.Call));
var getObjectIDOrNullMethod =
MemberInfoFromExpressionUtility.GetMethod(() => ExtendedSqlGeneratingOuterSelectExpressionVisitor.GetObjectIDOrNull(null, null));
Assert.That(((MethodCallExpression)_commandBuilder.GetInMemoryProjectionBody()).Method, Is.EqualTo(getObjectIDOrNullMethod));
}
public void GetObjectIDOrNull_Null()
{
var result = ExtendedSqlGeneratingOuterSelectExpressionVisitor.GetObjectIDOrNull(DomainObjectIDs.Order1.ClassID, null);
Assert.That(result, Is.Null);
}
public void GenerateSql_Collection()
{
var expression = Expression.Constant(new Order[] { });
ExtendedSqlGeneratingOuterSelectExpressionVisitor.GenerateSql(expression, _commandBuilder, _stageMock, _someSetOperationsMode);
}
