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balls.c++
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// --------------------------------
// projects/collatz/TestCollatz.c++
// Copyright (C) 2013
// Glenn P. Downing
// --------------------------------
/*
To test the program:
% ls /usr/include/cppunit/
...
TestFixture.h
...
% locate libcppunit.a
/usr/lib/libcppunit.a
% g++ -lcppunit -ldl -pedantic -std=c++0x -Wall Collatz.c++ TestCollatz.c++ -o TestCollatz.c++.app
% valgrind TestCollatz.c++.app >& TestCollatz.c++.out
*/
// --------
// includes
// --------
#include <iostream> // cout, endl
#include <sstream> // istringtstream, ostringstream
#include <string> // ==
#include "cppunit/extensions/HelperMacros.h" // CPPUNIT_TEST, CPPUNIT_TEST_SUITE, CPPUNIT_TEST_SUITE_END
#include "cppunit/TestFixture.h" // TestFixture
#include "cppunit/TextTestRunner.h" // TextTestRunner
#include "Collatz.h"
// -----------
// TestCollatz
// -----------
struct TestCollatz : CppUnit::TestFixture {
// ----
// read
// ----
void test_read () {
std::istringstream r("1 10\n");
int i;
int j;
const bool b = collatz_read(r, i, j);
CPPUNIT_ASSERT(b == true);
CPPUNIT_ASSERT(i == 1);
CPPUNIT_ASSERT(j == 10);}
void test_read_1(){
std::istringstream r("100 200\n");
int i;
int j;
const bool b = collatz_read(r, i, j);
CPPUNIT_ASSERT(b == true);
CPPUNIT_ASSERT(i == 100);
CPPUNIT_ASSERT(j == 200);}
void test_read_2 () {
std::istringstream r("201 210\n");
int i;
int j;
const bool b = collatz_read(r, i, j);
CPPUNIT_ASSERT(b == true);
CPPUNIT_ASSERT(i == 201);
CPPUNIT_ASSERT(j == 210);}
void test_read_3 () {
std::istringstream r("900 1000\n");
int i;
int j;
const bool b = collatz_read(r, i, j);
CPPUNIT_ASSERT(b == true);
CPPUNIT_ASSERT(i == 900);
CPPUNIT_ASSERT(j == 1000);}
// ----
// eval
// ----
void test_eval_1 () {
const int v = collatz_eval(1, 10);
CPPUNIT_ASSERT(v == 20);}
void test_eval_2 () {
const int v = collatz_eval(100, 200);
CPPUNIT_ASSERT(v == 125);}
void test_eval_3 () {
const int v = collatz_eval(201, 210);
CPPUNIT_ASSERT(v == 89);}
void test_eval_4 () {
const int v = collatz_eval(900, 1000);
CPPUNIT_ASSERT(v == 174);}
void test_eval_5 () {
const int v = collatz_eval(10, 1);
CPPUNIT_ASSERT(v == 20);}
void test_eval_6 () {
const int v = collatz_eval(16128, 2216);
CPPUNIT_ASSERT(v == 276);}
void test_eval_7 () {
const int v = collatz_eval(385281, 417720);
CPPUNIT_ASSERT(v == 449);}
void test_eval_8 () {
const int v = collatz_eval(210, 201);
CPPUNIT_ASSERT(v == 89);}
// -----
// print
// -----
void test_print () {
std::ostringstream w;
collatz_print(w, 1, 10, 20);
CPPUNIT_ASSERT(w.str() == "1 10 20\n");}
void test_print_1 () {
std::ostringstream w;
collatz_print(w, 100, 200, 125);
CPPUNIT_ASSERT(w.str() == "100 200 125\n");}
void test_print_2 () {
std::ostringstream w;
collatz_print(w, 201, 210, 89);
CPPUNIT_ASSERT(w.str() == "201 210 89\n");}
void test_print_3 () {
std::ostringstream w;
collatz_print(w, 900, 1000, 174);
CPPUNIT_ASSERT(w.str() == "900 1000 174\n");}
// -----
// solve
// -----
void test_solve () {
std::istringstream r("1 10\n100 200\n201 210\n900 1000\n");
std::ostringstream w;
collatz_solve(r, w);
CPPUNIT_ASSERT(w.str() == "1 10 20\n100 200 125\n201 210 89\n900 1000 174\n");}
void test_solve_1 () {
std::istringstream r("1 10\n");
std::ostringstream w;
collatz_solve(r, w);
CPPUNIT_ASSERT(w.str() == "1 10 20\n");}
void test_solve_2 () {
std::istringstream r("100 200\n");
std::ostringstream w;
collatz_solve(r, w);
CPPUNIT_ASSERT(w.str() == "100 200 125\n");}
void test_solve_3 () {
std::istringstream r("900 1000\n");
std::ostringstream w;
collatz_solve(r, w);
CPPUNIT_ASSERT(w.str() == "900 1000 174\n");}
void test_solve_4 () {
std::istringstream r("1000 900\n");
std::ostringstream w;
collatz_solve(r, w);
CPPUNIT_ASSERT(w.str() == "1000 900 174\n");}
// -----
// suite
// -----
CPPUNIT_TEST_SUITE(TestCollatz);
CPPUNIT_TEST(test_read);
CPPUNIT_TEST(test_read_1);
CPPUNIT_TEST(test_read_2);
CPPUNIT_TEST(test_read_3);
CPPUNIT_TEST(test_eval_1);
CPPUNIT_TEST(test_eval_2);
CPPUNIT_TEST(test_eval_3);
CPPUNIT_TEST(test_eval_4);
CPPUNIT_TEST(test_eval_5);
CPPUNIT_TEST(test_eval_6);
CPPUNIT_TEST(test_eval_7);
CPPUNIT_TEST(test_eval_8);
CPPUNIT_TEST(test_print);
CPPUNIT_TEST(test_print_1);
CPPUNIT_TEST(test_print_2);
CPPUNIT_TEST(test_print_3);
CPPUNIT_TEST(test_solve);
CPPUNIT_TEST(test_solve_1);
CPPUNIT_TEST(test_solve_2);
CPPUNIT_TEST(test_solve_3);
CPPUNIT_TEST(test_solve_4);
CPPUNIT_TEST_SUITE_END();};
// ----
// main
// ----
int main () {
using namespace std;
ios_base::sync_with_stdio(false); // turn off synchronization with C I/O
cout << "TestCollatz.c++" << endl;
CppUnit::TextTestRunner tr;
tr.addTest(TestCollatz::suite());
tr.run();
cout << "Done." << endl;
return 0;}