public void Invalid_Untyped_Expression_Returns_False()
{
var actual = ExpressionExt.TryGetPropertyInfo <TestClass>(c => "string", out var member);
Assert.IsFalse(actual);
Assert.IsNull(member);
}
public void Valid_Untyped_Property_Expressions_Returns_Null()
{
var actual = ExpressionExt.TryGetPropertyInfo <TestClass>(c => c.Property, out var member);
Assert.IsTrue(actual);
Assert.AreEqual(TestClass.PropertyInfo, member);
}
public void Method_Expression_Returns_Null()
{
var actual = ExpressionExt.TryGetPropertyInfo <TestClass>(c => c.Method(), out var member);
Assert.IsFalse(actual);
Assert.IsNull(member);
}
public void Valid_Untyped_Unary_Field_Expressions_Returns_Null()
{
var actual = ExpressionExt.TryGetPropertyInfo <TestClass>(c => (string)c.Field, out var member);
Assert.IsFalse(actual);
Assert.IsNull(member);
}
public void Valid_Typed_Property_Expression_Returns_Expected_Values()
{
var actual = ExpressionExt.TryGetPropertyInfo <TestClass, string>(c => c.Property, out var member);
Assert.IsTrue(actual);
Assert.AreEqual(TestClass.PropertyInfo, member);
}