public void Can_modify_readonly_auto_properties()
{
var original = new TestClass();
var newRecord = new TestClass();
var autoPropertyInfo = PropertyMutator <TestClass> .GetPropertyFromExpression(t => t.ReadonlyAutoObject);
newRecord = new TestClass();
Assert.IsNull(newRecord.ReadonlyAutoObject);
Assert.DoesNotThrow(() => PropertyMutator <TestClass> .FromAssignment(autoPropertyInfo, new object()).ApplyMutation(original, newRecord));
Assert.IsNotNull(newRecord.ReadonlyAutoObject);
newRecord = new TestClass();
Assert.IsNull(newRecord.ReadonlyAutoObject);
Assert.DoesNotThrow(() => PropertyMutator <TestClass> .FromTransform(autoPropertyInfo, r => new object()).ApplyMutation(original, newRecord));
Assert.IsNotNull(newRecord.ReadonlyAutoObject);
newRecord = new TestClass();
Assert.IsNull(newRecord.ReadonlyAutoObject);
Assert.DoesNotThrow(() => PropertyMutator <TestClass> .FromAssignment(autoPropertyInfo.Name, new object()).ApplyMutation(original, newRecord));
Assert.IsNotNull(newRecord.ReadonlyAutoObject);
newRecord = new TestClass();
Assert.IsNull(newRecord.ReadonlyAutoObject);
Assert.DoesNotThrow(() => PropertyMutator <TestClass> .FromTransform(autoPropertyInfo.Name, r => new object()).ApplyMutation(original, newRecord));
Assert.IsNotNull(newRecord.ReadonlyAutoObject);
}
public void Throws_if_property_does_not_have_setter()
{
var notSetterProperyInfo = PropertyMutator <TestClass> .GetPropertyFromExpression(t => t.NoSetter);
Assert.Throws <ArgumentException>(() => PropertyMutator <TestClass> .FromAssignment(notSetterProperyInfo, DateTimeOffset.MaxValue));
Assert.Throws <ArgumentException>(() => PropertyMutator <TestClass> .FromTransform(notSetterProperyInfo, r => DateTimeOffset.MaxValue));
Assert.Throws <ArgumentException>(() => PropertyMutator <TestClass> .FromAssignment(notSetterProperyInfo.Name, DateTimeOffset.MaxValue));
Assert.Throws <ArgumentException>(() => PropertyMutator <TestClass> .FromTransform(notSetterProperyInfo.Name, r => DateTimeOffset.MaxValue));
}