public void should_perform_real_copy_operation_for_value_type()
{
var original = new ValueTypeDemoClass();
ValueTypeDemoClass copy = original;
bool isSameReference;
// use unsafe keyword permit use pointer and perform c++-style pointer operations
unsafe
{
// & returns a pointer to the address of variable
// * returns the variable at the address of a pointer
// -> ponit-to-member operator, x->y is equivalent to(*x).y
ValueTypeDemoClass *originalPtr = &original;
ValueTypeDemoClass *copyPtr = ©
// originalPtr -> original
// copyPtr -> copy
isSameReference = originalPtr == copyPtr;
}
// change the variable value to fix the test.
const bool expectedIsSameReference = false;
Assert.Equal(expectedIsSameReference, isSameReference);
}
public void should_be_sealed_for_value_type()
{
var customValueTypeObject = new ValueTypeDemoClass();
// change the variable value to fix the test.
const bool isValueTypeSealed = false;
Assert.Equal(isValueTypeSealed, customValueTypeObject.GetType().IsSealed);
}
public void should_be_sealed_for_value_type()
{
var customValueTypeObject = new ValueTypeDemoClass();
// change the variable value to fix the test.
const bool isValueTypeSealed = false;
Assert.Equal(isValueTypeSealed, customValueTypeObject.GetType().IsSealed);
}
public void should_be_sealed_for_value_type()
{
// sealed keyword to prevent it from being overridden by further subclasses
// value type are sealed
var customValueTypeObject = new ValueTypeDemoClass();
// change the variable value to fix the test.
const bool isValueTypeSealed = true;
Assert.Equal(isValueTypeSealed, customValueTypeObject.GetType().IsSealed);
}
public void should_perform_real_copy_operation_for_value_type()
{
var original = new ValueTypeDemoClass();
ValueTypeDemoClass copy = original;
bool isSameReference;
unsafe
{
ValueTypeDemoClass *originalPtr = &original;
ValueTypeDemoClass *copyPtr = ©
isSameReference = originalPtr == copyPtr;
}
// change the variable value to fix the test.
const bool expectedIsSameReference = true;
Assert.Equal(expectedIsSameReference, isSameReference);
}
public void should_derived_from_value_type_for_value_type()
{
int intObject = 1;
DateTime dateTimeObject = DateTime.Now;
var customValueTypeObject = new ValueTypeDemoClass();
// change the variable values for the following 3 lines to fix the test.
const bool isIntObjectValueType = false;
const bool isDateTimeObjectValueType = false;
const bool isCustomValueTypeObjectValueType = false;
Assert.Equal(
isIntObjectValueType,
intObject.GetType().IsSubclassOf(typeof(ValueType)));
Assert.Equal(
isDateTimeObjectValueType,
dateTimeObject.GetType().IsSubclassOf(typeof(ValueType)));
Assert.Equal(
isCustomValueTypeObjectValueType,
customValueTypeObject.GetType().IsSubclassOf(typeof(ValueType)));
}
public void should_derived_from_value_type_for_value_type()
{
int intObject = 1;
DateTime dateTimeObject = DateTime.Now;
var customValueTypeObject = new ValueTypeDemoClass();
// change the variable values for the following 3 lines to fix the test.
const bool isIntObjectValueType = false;
const bool isDateTimeObjectValueType = false;
const bool isCustomValueTypeObjectValueType = false;
Assert.Equal(
isIntObjectValueType,
intObject.GetType().IsSubclassOf(typeof(ValueType)));
Assert.Equal(
isDateTimeObjectValueType,
dateTimeObject.GetType().IsSubclassOf(typeof(ValueType)));
Assert.Equal(
isCustomValueTypeObjectValueType,
customValueTypeObject.GetType().IsSubclassOf(typeof(ValueType)));
}
public void should_perform_real_copy_operation_for_value_type()
{
var original = new ValueTypeDemoClass();
ValueTypeDemoClass copy = original;
bool isSameReference;
unsafe
{
ValueTypeDemoClass* originalPtr = &original;
ValueTypeDemoClass* copyPtr = ©
isSameReference = originalPtr == copyPtr;
}
// change the variable value to fix the test.
const bool expectedIsSameReference = true;
Assert.Equal(expectedIsSameReference, isSameReference);
}
