dlib C++ Library - tester.cpp

// Copyright (C) 2006 Davis E. King (davis@dlib.net)
// License: Boost Software License See LICENSE.txt for the full license.
#include <string>
#include <cstdlib>
#include <atomic>
#include <mutex>
#include "tester.h"
namespace test
{
// -----------------------------------------------------------------------------
 bool be_verbose = true;
// -----------------------------------------------------------------------------
 static std::mutex spinner_mutex;
 static std::atomic<uint64_t> test_count(0);
// -----------------------------------------------------------------------------
 std::uint64_t number_of_testing_statements_executed (
 )
 {
 return test_count;
 }
 void increment_test_count (
 )
 {
 ++test_count;
 }
// -----------------------------------------------------------------------------
 void check_test (
 bool _exp,
 long line,
 const char* file,
 const char* _exp_str
 )
 {
 ++test_count;
 if ( !(_exp) ) 
 { 
 std::ostringstream dlib_o_out; 
 dlib_o_out << "\n\nError occurred at line " << line << ".\n"; 
 dlib_o_out << "Error occurred in file " << file << ".\n"; 
 dlib_o_out << "Failing expression was " << _exp_str << ".\n"; 
 throw dlib::error(dlib_o_out.str()); 
 }
 } 
// -----------------------------------------------------------------------------
 map_of_testers& testers (
 )
 {
 static map_of_testers t;
 return t;
 }
// -----------------------------------------------------------------------------
 tester::
 tester (
 const std::string& switch_name_x,
 const std::string& description_x,
 unsigned long num_of_args_x
 ) :
 switch_name(switch_name_x),
 description_(description_x),
 num_of_args_(num_of_args_x)
 {
 using namespace std;
 if (testers().find(switch_name) != testers().end())
 {
 cerr << "ERROR: More than one tester has been defined with the switch '" << switch_name << "'." << endl;
 exit(1);
 }
 testers()[switch_name] = this;
 }
// -----------------------------------------------------------------------------
 const std::string& tester::
 cmd_line_switch (
 ) const
 {
 return switch_name;
 }
// -----------------------------------------------------------------------------
 const std::string& tester::
 description (
 ) const
 {
 return description_;
 }
// -----------------------------------------------------------------------------
 unsigned long tester::
 num_of_args (
 ) const
 {
 return num_of_args_;
 }
// -----------------------------------------------------------------------------
 void tester::
 perform_test (
 )
 {
 }
// -----------------------------------------------------------------------------
 void tester::
 perform_test (
 const std::string& 
 )
 {
 }
// -----------------------------------------------------------------------------
 void tester::
 perform_test (
 const std::string&, 
 const std::string& 
 )
 {
 }
// -----------------------------------------------------------------------------
 void print_spinner (
 )
 {
 if (be_verbose)
 {
 using namespace std;
 std::unique_lock<std::mutex> M(spinner_mutex);
 static int i = 0;
 cout << "\b\b";
 switch (i)
 {
 case 0: cout << '|'; break;
 case 1: cout << '/'; break;
 case 2: cout << '-'; break;
 case 3: cout << '\\'; break;
 }
 cout << " " << flush;
 i = (i+1)%4;
 }
 }
// -----------------------------------------------------------------------------
}