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  1. // kjellkod.wordpress.com
  2. // simple 'test frameork' in case you want to unit test your ideone code snippet
  3. // enjoy, Kjell 
  4. //
  5. // USAGE:
  6. // CREATE_TESTSUITE() should be called first in your testfunction
  7. //     it will simply generate an output of the test functions name 
  8. //     and number of tests in it (that were successful)
  9. //  
  10. // IMPORTANT:
  11. //     --- unsuccessful test stops the test execution 
  12. //
  13. // VERIFY(boolean expression) : does NOT depend on CREATE_TESTSUITE() --- 
  14. //       handy if you just want to test quickly w/out the other setup
  15. //
  16. // 
  17. // CHECK(boolean_expression) : 
  18. // which will trigger an exception if false
  19. //
  20. // CHECK_EQ(first, second) : same as CHECK but will print the actual values if not equal
  21. // CHECK_STREQ(str1, str2) : same as CHECK_EQ but for strings
  22. //
  23. // EXPECT_FAIL(function_call) : 
  24. // expects the call to trigger an exception which it then 'swallows'
  25. //  if no exception comes then it triggers a new exception
  26. //
  27.  
  28.  
  29.  
  30. #include <iostream>
  31. #include <sstream>
  32. #include <stdexcept>
  33. #include <string>
  34.  
  35. // For now VERIFY does depend on prior setup of      
  36. // CREATE_TESTSUITE() ...  I just added it for an easy way to use it wherever
  37. #define VERIFY(expression)  \
  38.       if( false == (expression))  \
  39.         { std::ostringstream oss; \
  40.           oss << "CHECK failed for [" << #expression << "] at " << __FUNCTION__ << ":" << __LINE__ <<  "\n"; \
  41.           std::cerr << oss.str() << endl;  \
  42.           throw std::runtime_error(oss.str()); \
  43.         }  
  44.  
  45.  
  46. #define CHECK(expression)  \
  47.       if( false == (expression))  \
  48.         { std::ostringstream oss; \
  49.           oss << "CHECK failed for [" << #expression << "] at " << __FUNCTION__ << ":" << __LINE__ <<  "\n"; \
  50.           throw std::runtime_error(oss.str()); \
  51.         }  _create_testsuite_raii_result._count++; 
  52.  
  53. #define CHECK_EQ(first, second)  \
  54.       { auto f = first; auto s = second; \
  55.       if( !(f == s))  \
  56.         { std::ostringstream oss; \
  57.           oss << "CHECK_EQ("<< f << "," << s << "] at " << __FUNCTION__ << ":" << __LINE__ <<  "\n"; \
  58.           throw std::runtime_error(oss.str()); \
  59.         } \
  60.       } _create_testsuite_raii_result._count++; 
  61.  
  62.  
  63. #define CHECK_STREQ(first, second)  \
  64.       {  std::string f(first); std::string s(second); \
  65.       if(f != s )  \
  66.         { std::ostringstream oss; \
  67.           oss << "CHECK_STREQ: \n["<< f << "]\n[" << s << "] at " << __FUNCTION__ << ":" << __LINE__ <<  "\n"; \
  68.           throw std::runtime_error(oss.str()); \
  69.         } \
  70.       } _create_testsuite_raii_result._count++; 
  71.  
  72.  
  73. #define EXPECT_FAIL( generate_check_exception )  \
  74.    {  \
  75.     bool _exception_thrown = false;  \
  76.     try {generate_check_exception;}  \
  77.     catch(std::exception const& e)   \
  78.     {  \
  79.      _exception_thrown = true;   \
  80.     }  \
  81.     if (!_exception_thrown)  \
  82.     {   \
  83.       std::ostringstream oss;  \
  84.       oss << "EXPECTED_FAIL [" << #generate_check_exception << "]";  \
  85.       oss << "] did NOT throw as expected. EXPECTED_FAIL error at at ";  \
  86.       oss << __FUNCTION__ << ":" << __LINE__ <<  "\n";  \
  87.       throw std::runtime_error(oss.str());  \
  88.     }   _create_testsuite_raii_result._count++;  \
  89. }
  90.  
  91. namespace KjellKod_SimpleTest {
  92.     struct RaiiTestResult 
  93.       {   RaiiTestResult(std::string name): _name(name), _count(0){}
  94.           ~RaiiTestResult(){ std::cout <<"TESTING\t[" << _name << "] ---> " << _count << " tests: OK\n";}
  95.           std::string _name; std::size_t _count;
  96.       };
  97. }
  98.  
  99. #define CREATE_TESTSUITE() KjellKod_SimpleTest::RaiiTestResult _create_testsuite_raii_result(__FUNCTION__)
  100.  
  101.  
  102.  
  103.  
  104.  
  105.  
  106.  
  107.  
  108. // --------------------------------
  109. //   BELOW  Example Usage 
  110. // -------------------------------
  111.  
  112. size_t first = 1;
  113. size_t second = 2;
  114.  
  115. void test__CHECK() {
  116.   CREATE_TESTSUITE();
  117.   CHECK(first != second);
  118. }
  119.  
  120.  
  121. void test__EXPECT_FAIL() {
  122.   CREATE_TESTSUITE();
  123.   EXPECT_FAIL(throw std::runtime_error("yalla"));
  124.   EXPECT_FAIL(  CHECK(first == second));
  125. }
  126.  
  127. void test__CHECK_EQ() {
  128.   CREATE_TESTSUITE();
  129.   EXPECT_FAIL(  CHECK_EQ(first, second));
  130. }
  131.  
  132. void test__CHECK_STREQ() {
  133.   CREATE_TESTSUITE();
  134.  
  135.   std::string str1("1");
  136.   std::string str2("2");
  137.   EXPECT_FAIL(  CHECK_STREQ(str1, str2));
  138. }
  139.  
  140. int main() {
  141.  
  142.  
  143.   test__CHECK();
  144.   test__EXPECT_FAIL();
  145.   test__CHECK_EQ();
  146.   test__CHECK_STREQ();
  147.   return 0;
  148. }
  149.  
Success #stdin #stdout 0s 2992KB
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stdin
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Standard input is empty
stdout
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TESTING	[test__CHECK] ---> 1 tests: OK
TESTING	[test__EXPECT_FAIL] ---> 2 tests: OK
TESTING	[test__CHECK_EQ] ---> 1 tests: OK
TESTING	[test__CHECK_STREQ] ---> 1 tests: OK
https://ideone.com/sv801E
unit test
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
public

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