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jiuling-TestCollatz.c++
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jiuling-TestCollatz.c++
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// --------------------------------
// projects/collatz/TestCollatz.c++
// Copyright (C) 2013
// Glenn P. Downing
// --------------------------------
/*
To test the program:
% ls -al /usr/include/gtest/
...
gtest.h
...
% locate libgtest.a
/usr/lib/libgtest.a
% locate libpthread.a
/usr/lib/x86_64-linux-gnu/libpthread.a
/usr/lib32/libpthread.a
% locate libgtest_main.a
/usr/lib/libgtest_main.a
% g++ -pedantic -std=c++0x -Wall Collatz.c++ TestCollatz.c++ -o TestCollatz -lgtest -lpthread -lgtest_main
% valgrind TestCollatz > TestCollatz.out
*/
// --------
// includes
// --------
#include <iostream> // cout, endl
#include <sstream> // istringtstream, ostringstream
#include <string> // ==
#include "gtest/gtest.h"
#include "Collatz.h"
// -----------
// TestCollatz
// -----------
// ----
// read
// ----
TEST(Collatz, read) {
std::istringstream r("1 10\n");
int i;
int j;
const bool b = collatz_read(r, i, j);
ASSERT_TRUE(b == true);
ASSERT_TRUE(i == 1);
ASSERT_TRUE(j == 10);}
TEST(Collatz, read_1){
std::istringstream r("2 3");
int i;
int j;
const bool b = collatz_read(r, i, j);
ASSERT_TRUE(b == true);
ASSERT_TRUE(i == 2);
ASSERT_TRUE(j == 3);
}
TEST(Collatz, read_2){
std::istringstream r("1 \n \n 10000\n");
int i;
int j;
const bool b = collatz_read(r, i, j);
ASSERT_TRUE(b == true);
ASSERT_TRUE(i == 1);
ASSERT_TRUE(j == 10000);
}
TEST(Collatz, read_3){
std::istringstream r("100 10\n");
int i;
int j;
const bool b = collatz_read(r, i, j);
ASSERT_TRUE(b == true);
ASSERT_TRUE(i == 100);
ASSERT_TRUE(j == 10);
}
// ----
// eval
// ----
TEST(Collatz, eval_1) {
const int v = collatz_eval(1, 10);
ASSERT_TRUE(v == 20);}
TEST(Collatz, eval_2) {
const int v = collatz_eval(100, 200);
ASSERT_TRUE(v == 125);}
TEST(Collatz, eval_3) {
const int v = collatz_eval(201, 210);
ASSERT_TRUE(v == 89);}
TEST(Collatz, eval_4) {
const int v = collatz_eval(900, 1000);
ASSERT_TRUE(v == 174);}
TEST(Collatz, eval_5) {
const int v = collatz_eval(10, 1);
ASSERT_TRUE(v == 20);}
// -----
// print
// -----
TEST(Collatz, print) {
std::ostringstream w;
collatz_print(w, 1, 10, 20);
ASSERT_TRUE(w.str() == "1 10 20\n");}
TEST(Collatz, print_1){
std::ostringstream w;
collatz_print(w, 1, 1, 1);
ASSERT_TRUE(w.str() == "1 1 1\n");
}
TEST(Collatz, print_2){
std::ostringstream w;
collatz_print(w, 20, 10000, 1333);
ASSERT_TRUE(w.str() == "20 10000 1333\n");
}
TEST(Collatz, print_3){
std::ostringstream w;
collatz_print(w, 11, 1111, 111);
ASSERT_TRUE(w.str() == "11 1111 111\n");
}
// -----
// solve
// -----
TEST(Collatz, solve) {
std::istringstream r("1 10\n100 200\n201 210\n900 1000\n");
std::ostringstream w;
collatz_solve(r, w);
ASSERT_TRUE(w.str() == "1 10 20\n100 200 125\n201 210 89\n900 1000 174\n");}
TEST(Collatz, solve_1) {
std::istringstream r("8 9\n");
std::ostringstream w;
collatz_solve(r, w);
ASSERT_TRUE(w.str() == "8 9 20\n");}
TEST(Collatz, solve_2) {
std::istringstream r("1 1\n8 8\n");
std::ostringstream w;
collatz_solve(r, w);
ASSERT_TRUE(w.str() == "1 1 1\n8 8 4\n");}
TEST(Collatz, solve_3) {
std::istringstream r("1 10\n11 20\n1 20\n");
std::ostringstream w;
collatz_solve(r, w);
ASSERT_TRUE(w.str() == "1 10 20\n11 20 21\n1 20 21\n");}