public void Visit()
{
System.Linq.Expressions.Expression<Func<int, int, bool>> largeSumTestExpression = (num1, num2) => (num1 + num2) > 1000;
Func<int, int, bool> largeSumTest = largeSumTestExpression.Compile();
TestDataObject obj = new TestDataObjectImpl() { StringProperty = "test", TestField = "test2" };
TestObj obj2 = new TestObj() { TestField = "Test2" };
TestQuery<TestDataObject> ctx = new TestQuery<TestDataObject>();
var list = from o in ctx
where o.IntProperty == 1
&& o.IntProperty != 2
&& o.IntProperty > 3
&& o.IntProperty == obj.ID
&& o.StringProperty == obj2.TestField
&& o.StringProperty == obj.StringProperty
&& o.StringProperty.StartsWith(obj2.TestField)
&& (o.StringProperty.StartsWith("test") || o.StringProperty == "test")
&& (o.StringProperty is string)
&& !o.BoolProperty
&& o.BoolProperty ? false : true
&& o.StringProperty == new DateTime().ToShortDateString()
&& new int[] { 1, obj.IntProperty }.Length == 2
&& (obj.IntProperty + o.StringProperty.Length) == 4
&& largeSumTest(o.IntProperty, o.IntProperty)
select new
{
o.IntProperty,
o.BoolProperty,
Test = o.IntProperty * 2,
Test2 = MethodCallTest(o.StringProperty.Length * 2),
TestList = new int[] { o.IntProperty, o.ID, o.StringProperty.Length },
TestObj = new { o.BoolProperty, o.ID },
Date = new DateTime(1000),
Test3 = obj.StringProperty,
Test4 = new TestDataObjectImpl() { StringProperty = o.StringProperty, ID = MethodCallTest(o.IntProperty) },
Test5 = new List<TestDataObject> {
new TestDataObjectImpl() { StringProperty = obj.StringProperty, ID = o.IntProperty },
new TestDataObjectImpl() { StringProperty = o.StringProperty, ID = MethodCallTest(o.IntProperty) }
},
Test6 = MethodCallTest(2),
Test7 = new List<TestDataObject>() { new TestDataObjectImpl(), obj }.Max(x => x.ID),
};
// The TestProvider does not implement Projections
// But in that case we just whant to test the visitor
var result = list.GetEnumerator();
Assert.That(result, Is.Null);
}
public void GetExpressionValue_MemberExpression_Property()
{
TestDataObject obj = new TestDataObjectImpl() { StringProperty = "Hello World" };
Expression e = Expression.PropertyOrField(Expression.Constant(obj), "StringProperty");
Assert.That(e.GetExpressionValue<string>(), Is.EqualTo("Hello World"));
}