src/unittest/test.h

   1 /*
   2 Minetest
   3 Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU Lesser General Public License as published by
   7 the Free Software Foundation; either version 2.1 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU Lesser General Public License for more details.
  14
  15 You should have received a copy of the GNU Lesser General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #ifndef TEST_HEADER
  21 #define TEST_HEADER
  22
  23 #include <exception>
  24 #include <vector>
  25
  26 #include "irrlichttypes_extrabloated.h"
  27 #include "porting.h"
  28 #include "filesys.h"
  29 #include "mapnode.h"
  30
  31 class TestFailedException : public std::exception {
  32 };
  33
  34 // Runs a unit test and reports results
  35 #define TEST(fxn, ...) do {         \
  36         u32 t1 = porting::getTime(PRECISION_MILLI); \
  37         try {                           \
  38                 fxn(__VA_ARGS__);           \
  39                 dstream << "[PASS] ";       \
  40         } catch (...) {                 \
  41                 dstream << "[FAIL] ";       \
  42                 num_tests_failed++;         \
  43         }                               \
  44         num_tests_run++;                \
  45         u32 tdiff = porting::getTime(PRECISION_MILLI) - t1;     \
  46         dstream << #fxn << " - " << tdiff << "ms" << std::endl; \
  47 } while (0)
  48
  49 // Asserts the specified condition is true, or fails the current unit test
  50 #define UASSERT(x) do {                                       \
  51         if (!(x)) {                                               \
  52                 dstream << "Test assertion failed: " #x << std::endl  \
  53                         << "    at " << fs::GetFilenameFromPath(__FILE__) \
  54                         << ":" << __LINE__ << std::endl;                  \
  55                 throw TestFailedException();                          \
  56         }                                                         \
  57 } while (0)
  58
  59 // Asserts the specified condition is true, or fails the current unit test
  60 // and prints the format specifier fmt
  61 #define UTEST(x, fmt, ...) do {                                        \
  62         if (!(x)) {                                                        \
  63                 char utest_buf[1024];                                          \
  64                 snprintf(utest_buf, sizeof(utest_buf), fmt, __VA_ARGS__);      \
  65                 dstream << "Test assertion failed: " << utest_buf << std::endl \
  66                         << "    at " << fs::GetFilenameFromPath(__FILE__)          \
  67                         << ":" << __LINE__ << std::endl;                           \
  68                 throw TestFailedException();                                   \
  69         }                                                                  \
  70 } while (0)
  71
  72 // Asserts the comparison specified by CMP is true, or fails the current unit test
  73 #define UASSERTCMP(T, CMP, actual, expected) do {                             \
  74         T a = (actual);                                                           \
  75         T e = (expected);                                                         \
  76         if (!(a CMP e)) {                                                         \
  77                 dstream << "Test assertion failed: " << #actual << " " << #CMP << " " \
  78                         << #expected << std::endl                                         \
  79                         << "    at " << fs::GetFilenameFromPath(__FILE__) << ":"          \
  80                         << __LINE__ << std::endl                                          \
  81                         << "    actual:   " << a << std::endl << "    expected: "         \
  82                         << e << std::endl;                                                \
  83                 throw TestFailedException();                                          \
  84         }                                                                         \
  85 } while (0)
  86
  87 #define UASSERTEQ(T, actual, expected) UASSERTCMP(T, ==, actual, expected)
  88
  89 // UASSERTs that the specified exception occurs
  90 #define EXCEPTION_CHECK(EType, code) do { \
  91         bool exception_thrown = false;        \
  92         try {                                 \
  93                 code;                             \
  94         } catch (EType &e) {                  \
  95                 exception_thrown = true;          \
  96         }                                     \
  97         UASSERT(exception_thrown);            \
  98 } while (0)
  99
 100 class IGameDef;
 101
 102 class TestBase {
 103 public:
 104         bool testModule(IGameDef *gamedef);
 105         virtual void runTests(IGameDef *gamedef) = 0;
 106         virtual const char *getName() = 0;
 107
 108         u32 num_tests_failed;
 109         u32 num_tests_run;
 110 };
 111
 112 class TestManager {
 113 public:
 114         static std::vector<TestBase *> &getTestModules()
 115         {
 116                 static std::vector<TestBase *> m_modules_to_test;
 117                 return m_modules_to_test;
 118         }
 119
 120         static void registerTestModule(TestBase *module)
 121         {
 122                 getTestModules().push_back(module);
 123         }
 124 };
 125
 126 // A few item and node definitions for those tests that need them
 127 extern content_t CONTENT_STONE;
 128 extern content_t CONTENT_GRASS;
 129 extern content_t CONTENT_TORCH;
 130
 131 void run_tests();
 132
 133 #endif