public void Parse_WhenOneExpressionIsNullExpression_DoesNotThrowException()
{
var lambda = new OrderByAscExpression(Reflect<MyClass>.LambdaFrom(m => m.String1));
Assert.DoesNotThrow(
() => new OrderByParser().Parse(new OrderByExpression[] { lambda, null }));
}
public void Parse_WhenOnePropertyLambdaIsPassed_ExactlyOneSortingNodeIsReturned()
{
var lambda = new OrderByAscExpression(Reflect<MyClass>.LambdaFrom(m => m.String1));
var parsedLambda = new OrderByParser().Parse(new[] { lambda });
Assert.AreEqual(1, parsedLambda.Nodes.Length);
Assert.IsInstanceOf(typeof(SortingNode), parsedLambda.Nodes[0]);
}
public void Parse_WhenNestedMemberIsMethod_ThrowsException()
{
var lambda = new OrderByAscExpression(Reflect<MyClass>.LambdaFrom(m => m.Child.DoSomething()));
var ex = Assert.Throws<SisoDbException>(
() => new OrderByParser().Parse(new[] { lambda }));
Assert.AreEqual(ExceptionMessages.OrderByParser_UnsupportedMethodForSortingDirection, ex.Message);
}
public void Parse_WhenNonMemberExpression_ThrowsException()
{
var parser = new OrderByParser();
var nonMemberExpression = new OrderByAscExpression(Reflect<MyClass>.BoolExpressionFrom(m => m.Int1 == 32));
var ex = Assert.Throws<NCoreException>(() => parser.Parse(new[] { nonMemberExpression }));
Assert.AreEqual("No MemberExpression found in expression: '(m.Int1 == 32)'.", ex.Message);
}
public void Parse_WhenNonMemberExpression_ThrowsException()
{
var parser = CreateParser();
var nonMemberExpression = new OrderByAscExpression(Reflect<MyClass>.BoolExpressionFrom(m => m.Int1 == 32));
var ex = Assert.Throws<SisoDbException>(() => parser.Parse(new[] { nonMemberExpression }));
Assert.AreEqual(ExceptionMessages.OrderByExpressionDoesNotTargetMember.Inject("m => (m.Int1 == 32)"), ex.Message);
}
public void Parse_WhenTwoPropertyLambdasArePassed_ExactlyTwoSortingNodeIsReturned()
{
var lambda1 = new OrderByAscExpression(Reflect<MyClass>.LambdaFrom(m => m.String1));
var lambda2 = new OrderByDescExpression(Reflect<MyClass>.LambdaFrom(m => m.Int1));
var parsedLambda = new OrderByParser().Parse(new OrderByExpression[] { lambda1, lambda2 });
Assert.AreEqual(2, parsedLambda.Nodes.Length);
Assert.IsInstanceOf(typeof(SortingNode), parsedLambda.Nodes[0]);
Assert.IsInstanceOf(typeof(SortingNode), parsedLambda.Nodes[1]);
}
public void Parse_WhenNestedLambda_MemberPathReflectsHierarchy()
{
var lambda = new OrderByAscExpression(Reflect<MyClass>.LambdaFrom(m => m.Child.String1));
var parsedLambda = new OrderByParser().Parse(new[] { lambda });
var node = (SortingNode)parsedLambda.Nodes[0];
Assert.AreEqual("Child.String1", node.MemberPath);
}
public void Parse_WhenFirstLevelLambda_MemberPathIsPropertyName()
{
var lambda = new OrderByAscExpression(Reflect<MyClass>.LambdaFrom(m => m.String1));
var parsedLambda = new OrderByParser().Parse(new[] { lambda });
var node = (SortingNode)parsedLambda.Nodes[0];
Assert.AreEqual("String1", node.MemberPath);
}
public void Parse_WhenAscAndDescExpressionOnSameMember_SortingDirectionBecomesBothAscAndDescInCorrectOrder()
{
var lambda1 = new OrderByAscExpression(Reflect<MyClass>.LambdaFrom(m => m.String1));
var lambda2 = new OrderByDescExpression(Reflect<MyClass>.LambdaFrom(m => m.String1));
var parsedLambda = new OrderByParser()
.Parse(new OrderByExpression [] { lambda1, lambda2 });
Assert.AreEqual(2, parsedLambda.Nodes.Length);
var node1 = (SortingNode)parsedLambda.Nodes[0];
Assert.AreEqual(SortDirections.Asc, node1.Direction);
var node2 = (SortingNode)parsedLambda.Nodes[1];
Assert.AreEqual(SortDirections.Desc, node2.Direction);
}
public void Parse_WhenAscExpressionOnNested_SortingDirectionBecomesAsc()
{
var lambda = new OrderByAscExpression(Reflect<MyClass>.LambdaFrom(m => m.Child.String1));
var parsedLambda = new OrderByParser().Parse(new[] { lambda });
var node = (SortingNode)parsedLambda.Nodes[0];
Assert.AreEqual(SortDirections.Asc, node.Direction);
}