void print(DictionaryList& dl)
{
if (dl.size() == 0)
cout << " List is EMPTY.\n";
for (dl.go_to_first(); dl.cursor_ok(); dl.step_fwd()) {
cout << " " << dl.cursor_key();
cout << " " << dl.cursor_datum().c_str() << '\n';
}
}
void test_copying()
{
DictionaryList one;
// Copy an empty list.
DictionaryList two;
assert(two.size() == 0);
// Copy a list with three entries and a valid cursor.
one.insert(319,"Randomness");
one.insert(315,"Shocks");
one.insert(335,"ParseErrors");
one.go_to_first();
one.step_fwd();
DictionaryList three(one);
assert(three.cursor_datum().isEqual("Randomness"));
one.remove(335);
cout << "Printing list--keys should be 315, 319\n";
print(one);
cout << "Printing list--keys should be 315, 319, 335\n";
print(three);
// Assignment operator check.
one = two = three = three;
one.remove(319);
two.remove(315);
cout << "Printing list--keys should be 315, 335\n";
print(one);
cout << "Printing list--keys should be 319, 335\n";
print(two);
cout << "Printing list--keys should be 315, 319, 335\n";
print(three);
cout << "***----Finished tests of copying----------------------***\n\n";
}
void test_operator_overloading(DictionaryList& dl)
{
DictionaryList dl2 = dl;
dl.go_to_first();
dl.step_fwd();
dl2.go_to_first();
cout << "\n\nTesting a few comparison and insertion operators." << endl;
// Needs to overload >= and << (insertion operator) in class Mystring
if (dl.cursor_datum() >= (dl2.cursor_datum()))
cout << endl << dl.cursor_datum() << " is greater than or equal " << dl2.cursor_datum();
else
cout << endl << dl2.cursor_datum() << " is greater than " << dl.cursor_datum();
// Needs to overload <= for Mystring
if(dl.cursor_datum() <= (dl2.cursor_datum()))
cout << dl.cursor_datum() << " is less than or equal" << dl2.cursor_datum();
else
cout << endl << dl2.cursor_datum() << " is less than " << dl.cursor_datum();
// Needs to overload != for Mystring
if(dl.cursor_datum() != (dl2.cursor_datum()))
cout << endl << dl.cursor_datum() << " is not equal to " << dl2.cursor_datum();
else
cout << endl << dl2.cursor_datum() << " is equal to " << dl.cursor_datum();
// Needs to overload > for Mystring
if(dl.cursor_datum() > (dl2.cursor_datum()))
cout << endl << dl.cursor_datum() << " is greater than " << dl2.cursor_datum();
else
cout << endl << dl.cursor_datum() << " is not greater than " << dl2.cursor_datum();
// Needs to overload < for Mystring
if(dl.cursor_datum() < (dl2.cursor_datum()))
cout << endl << dl.cursor_datum() << " is less than " << dl2.cursor_datum();
else
cout << endl << dl.cursor_datum() << " is not less than " << dl2.cursor_datum();
// Needs to overload == for Mystring
if(dl.cursor_datum() == (dl2.cursor_datum()))
cout << endl << dl.cursor_datum() << " is equal to " << dl2.cursor_datum();
else
cout << endl << dl.cursor_datum() << " is not equal to " << dl2.cursor_datum();
cout << endl << "\nUsing square bracket [] to access elements of Mystring objects. ";
char c = dl.cursor_datum()[1];
cout << endl << "The second element of " << dl.cursor_datum() << " is: " << c;
dl.cursor_datum()[1] = 'o';
c = dl.cursor_datum()[1];
cout << endl << "The second element of " << dl.cursor_datum() << " is: " << c;
cout << endl << "\nUsing << to display key/datum pairs in a Dictionary list: \n";
/* The following line is expected to display the content of the linked list
* dl2 -- key/datum pairs. It should display:
* 8001 Allen
* 8002 Peter
* 8003 Sam
* 8004 PointyHair
*/
cout << dl2;
cout << endl << "\nUsing [] to display the datum only: \n";
/* The following line is expected to display the content of the linked list
* dl2 -- datum. It should display:
* Allen
* Peter
* Sam
* PointyHair
*/
for(int i =0; i < dl2.size(); i++)
cout << dl2[i] << endl;
cout << endl << "\nUsing [] to display sequence of charaters in a datum: \n";
/* The following line is expected to display the characters in the first node
* of the dictionary. It should display:
* A
* l
* l
* e
* n
*/
cout << dl2[0][0] << endl;
cout << dl2[0][1] << endl;
cout << dl2[0][2] << endl;
cout << dl2[0][3] << endl;
cout << dl2[0][4] << endl;
cout << "\n\n***----Finished tests for overloading operators ----------***\n\n";
}