xref: /netbsd-src/external/bsd/atf/dist/tools/test_helpers.hpp (revision d780102efefa02003390cc43ea410dbd0ebb4a85)
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2 // Automated Testing Framework (atf)
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29 
30 #if defined(TOOLS_TEST_HELPERS_H)
31 #   error "Cannot include test_helpers.hpp more than once."
32 #else
33 #   define TOOLS_TEST_HELPERS_H
34 #endif
35 
36 #include <iostream>
37 #include <sstream>
38 #include <utility>
39 
40 #include <atf-c++.hpp>
41 
42 #include "parser.hpp"
43 #include "text.hpp"
44 
45 namespace test_helpers_detail {
46 
47 typedef std::vector< std::string > string_vector;
48 
49 template< class Reader >
50 std::pair< string_vector, string_vector >
do_read(const char * input)51 do_read(const char* input)
52 {
53     string_vector errors;
54 
55     std::istringstream is(input);
56     Reader reader(is);
57     try {
58         reader.read();
59     } catch (const tools::parser::parse_errors& pes) {
60         for (std::vector< tools::parser::parse_error >::const_iterator iter =
61              pes.begin(); iter != pes.end(); iter++)
62             errors.push_back(*iter);
63     } catch (const tools::parser::parse_error& pe) {
64         ATF_FAIL("Raised a lonely parse error: " +
65                  tools::text::to_string(pe.first) + ": " + pe.second);
66     }
67 
68     return std::make_pair(reader.m_calls, errors);
69 }
70 
71 void
check_equal(const char * expected[],const string_vector & actual)72 check_equal(const char* expected[], const string_vector& actual)
73 {
74     const char** expected_iter = expected;
75     string_vector::const_iterator actual_iter = actual.begin();
76 
77     bool equals = true;
78     while (equals && *expected_iter != NULL && actual_iter != actual.end()) {
79         if (*expected_iter != *actual_iter) {
80             equals = false;
81         } else {
82             expected_iter++;
83             actual_iter++;
84         }
85     }
86     if (equals && ((*expected_iter == NULL && actual_iter != actual.end()) ||
87                    (*expected_iter != NULL && actual_iter == actual.end())))
88         equals = false;
89 
90     if (!equals) {
91         std::cerr << "EXPECTED:\n";
92         for (expected_iter = expected; *expected_iter != NULL; expected_iter++)
93             std::cerr << *expected_iter << "\n";
94 
95         std::cerr << "ACTUAL:\n";
96         for (actual_iter = actual.begin(); actual_iter != actual.end();
97              actual_iter++)
98             std::cerr << *actual_iter << "\n";
99 
100         ATF_FAIL("Expected results differ to actual values");
101     }
102 }
103 
104 } // namespace test_helpers_detail
105 
106 template< class Reader >
107 void
do_parser_test(const char * input,const char * exp_calls[],const char * exp_errors[])108 do_parser_test(const char* input, const char* exp_calls[],
109                const char* exp_errors[])
110 {
111     const std::pair< test_helpers_detail::string_vector,
112                      test_helpers_detail::string_vector >
113         actual = test_helpers_detail::do_read< Reader >(input);
114     test_helpers_detail::check_equal(exp_calls, actual.first);
115     test_helpers_detail::check_equal(exp_errors, actual.second);
116 }
117