public void Copy_ConstantExpression_ThrowsException()
{
//Arrange
ComplexStruct complexStructStub = ComplexStructFactory();
//Act, Assert
Exception ex = Assert.Catch(() => complexStructStub.Copy(cs => MAGIC_INT, 20));
}
public void Copy_NullExpression_Succeeds()
{
//Arrange
ComplexStruct complexStructStub = ComplexStructFactory();
//Act
ComplexStruct copy = complexStructStub.Copy(null);
//Assert
Assert.IsTrue(complexStructStub.DeepEquals(copy));
}
public void Copy_IdenticalMultipleExpressions_Fails()
{
//Arrange
ComplexStruct complexStructStub = ComplexStructFactory();
//Act, Assert
Assert.Catch(() => complexStructStub.Copy(new Dictionary <Expression <Func <ComplexStruct, object> >, object>()
{
{ cs => cs.Str, MAGIC_STRING },
{ cs => cs.Str, MAGIC_STRING }
}));
}
public void Copy_UnaryExpressions_AreIgnoredAndValueIsSet()
{
//Arrange
ComplexStruct complexStructStub = ComplexStructFactory();
//Act
ComplexStruct copy = complexStructStub.Copy(cs => (short)(((ComplexStruct)(object)cs).SimpleStruct.Int), MAGIC_INT);
//Assert
Assert.IsFalse(complexStructStub.DeepEquals(copy));
Assert.AreNotEqual(complexStructStub.SimpleStruct.Int, copy.SimpleStruct.Int);
Assert.AreEqual(MAGIC_INT, copy.SimpleStruct.Int);
}
public void Copy_DeepExpression_SetsValue()
{
//Arrange
ComplexStruct complexStructStub = ComplexStructFactory();
//Act
ComplexStruct copy = complexStructStub.Copy(cs => cs.SimpleStruct.Int, MAGIC_INT);
//Assert
Assert.IsFalse(complexStructStub.DeepEquals(copy));
Assert.AreNotEqual(complexStructStub.SimpleStruct.Int, copy.SimpleStruct.Int);
Assert.AreEqual(MAGIC_INT, copy.SimpleStruct.Int);
}
public void Copy_ShallowExpression_SetsValue()
{
//Arrange
ComplexStruct complexStructStub = ComplexStructFactory();
//Act
ComplexStruct copy = complexStructStub.Copy(cs => cs.Str, MAGIC_STRING);
//Assert
Assert.IsFalse(complexStructStub.DeepEquals(copy));
Assert.AreNotEqual(complexStructStub.Str, copy.Str);
Assert.AreEqual(MAGIC_STRING, copy.Str);
}
public void Copy_MultipleExpressions_SetValues()
{
//Arrange
ComplexStruct complexStructStub = ComplexStructFactory();
//Act
ComplexStruct copy = complexStructStub.Copy(new Dictionary <Expression <Func <ComplexStruct, object> >, object>()
{
{ cs => cs.Str, MAGIC_STRING },
{ cs => cs.SimpleStruct.Int, MAGIC_INT }
});
//Assert
Assert.AreEqual(MAGIC_STRING, copy.Str);
Assert.AreNotEqual(MAGIC_STRING, complexStructStub.Str);
Assert.AreEqual(MAGIC_INT, copy.SimpleStruct.Int);
Assert.AreNotEqual(MAGIC_INT, complexStructStub.SimpleStruct.Int);
}