public void VisitExpression_AnyOtherExpression()
{
var visitor = new GroupAggregateSimplifier.SimplifyingVisitor(_resolvedJoinedGroupingTable, _associatedGroupingSelectExpression.ElementExpression);
var input = Expression.Constant(0);
var result = visitor.VisitExpression(input);
Assert.That(visitor.CanBeTransferredToGroupingSource, Is.True);
Assert.That(result, Is.SameAs(input));
}
public void VisitExpression_ReferenceToOtherTable()
{
var visitor = new GroupAggregateSimplifier.SimplifyingVisitor(_resolvedJoinedGroupingTable, _associatedGroupingSelectExpression.ElementExpression);
var input = new SqlTableReferenceExpression(SqlStatementModelObjectMother.CreateSqlTable());
visitor.VisitExpression(input);
Assert.That(visitor.CanBeTransferredToGroupingSource, Is.False);
}
public void VisitExpression_ReferenceToRightTable()
{
var visitor = new GroupAggregateSimplifier.SimplifyingVisitor(_resolvedJoinedGroupingTable, _associatedGroupingSelectExpression.ElementExpression);
var input = new SqlTableReferenceExpression(_resolvedJoinedGroupingTable);
var result = visitor.VisitExpression(input);
Assert.That(visitor.CanBeTransferredToGroupingSource, Is.True);
Assert.That(result, Is.SameAs(_associatedGroupingSelectExpression.ElementExpression));
}
public void VisitExpression_ReferenceToRightTable_Nested()
{
var visitor = new GroupAggregateSimplifier.SimplifyingVisitor(_resolvedJoinedGroupingTable, _associatedGroupingSelectExpression.ElementExpression);
var input = Expression.Equal(
new SqlTableReferenceExpression(_resolvedJoinedGroupingTable),
new SqlTableReferenceExpression(_resolvedJoinedGroupingTable));
var result = visitor.VisitExpression(input);
Assert.That(visitor.CanBeTransferredToGroupingSource, Is.True);
var expectedResult = Expression.Equal(
_associatedGroupingSelectExpression.ElementExpression,
_associatedGroupingSelectExpression.ElementExpression);
SqlExpressionTreeComparer.CheckAreEqualTrees(expectedResult, result);
}