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      1 // Copyright 2008, Google Inc.
      2 // All rights reserved.
      3 //
      4 // Redistribution and use in source and binary forms, with or without
      5 // modification, are permitted provided that the following conditions are
      6 // met:
      7 //
      8 //     * Redistributions of source code must retain the above copyright
      9 // notice, this list of conditions and the following disclaimer.
     10 //     * Redistributions in binary form must reproduce the above
     11 // copyright notice, this list of conditions and the following disclaimer
     12 // in the documentation and/or other materials provided with the
     13 // distribution.
     14 //     * Neither the name of Google Inc. nor the names of its
     15 // contributors may be used to endorse or promote products derived from
     16 // this software without specific prior written permission.
     17 //
     18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
     19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
     20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
     21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
     22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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     24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
     28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     29 //
     30 // Author: mheule (at) google.com (Markus Heule)
     31 //
     32 
     33 #ifndef GTEST_INCLUDE_GTEST_GTEST_TEST_PART_H_
     34 #define GTEST_INCLUDE_GTEST_GTEST_TEST_PART_H_
     35 
     36 #include <iosfwd>
     37 #include <gtest/internal/gtest-internal.h>
     38 #include <gtest/internal/gtest-string.h>
     39 
     40 namespace testing {
     41 
     42 // The possible outcomes of a test part (i.e. an assertion or an
     43 // explicit SUCCEED(), FAIL(), or ADD_FAILURE()).
     44 enum TestPartResultType {
     45   TPRT_SUCCESS,           // Succeeded.
     46   TPRT_NONFATAL_FAILURE,  // Failed but the test can continue.
     47   TPRT_FATAL_FAILURE      // Failed and the test should be terminated.
     48 };
     49 
     50 // A copyable object representing the result of a test part (i.e. an
     51 // assertion or an explicit FAIL(), ADD_FAILURE(), or SUCCESS()).
     52 //
     53 // Don't inherit from TestPartResult as its destructor is not virtual.
     54 class TestPartResult {
     55  public:
     56   // C'tor.  TestPartResult does NOT have a default constructor.
     57   // Always use this constructor (with parameters) to create a
     58   // TestPartResult object.
     59   TestPartResult(TestPartResultType type,
     60                  const char* file_name,
     61                  int line_number,
     62                  const char* message)
     63       : type_(type),
     64         file_name_(file_name),
     65         line_number_(line_number),
     66         summary_(ExtractSummary(message)),
     67         message_(message) {
     68   }
     69 
     70   // Gets the outcome of the test part.
     71   TestPartResultType type() const { return type_; }
     72 
     73   // Gets the name of the source file where the test part took place, or
     74   // NULL if it's unknown.
     75   const char* file_name() const { return file_name_.c_str(); }
     76 
     77   // Gets the line in the source file where the test part took place,
     78   // or -1 if it's unknown.
     79   int line_number() const { return line_number_; }
     80 
     81   // Gets the summary of the failure message.
     82   const char* summary() const { return summary_.c_str(); }
     83 
     84   // Gets the message associated with the test part.
     85   const char* message() const { return message_.c_str(); }
     86 
     87   // Returns true iff the test part passed.
     88   bool passed() const { return type_ == TPRT_SUCCESS; }
     89 
     90   // Returns true iff the test part failed.
     91   bool failed() const { return type_ != TPRT_SUCCESS; }
     92 
     93   // Returns true iff the test part non-fatally failed.
     94   bool nonfatally_failed() const { return type_ == TPRT_NONFATAL_FAILURE; }
     95 
     96   // Returns true iff the test part fatally failed.
     97   bool fatally_failed() const { return type_ == TPRT_FATAL_FAILURE; }
     98  private:
     99   TestPartResultType type_;
    100 
    101   // Gets the summary of the failure message by omitting the stack
    102   // trace in it.
    103   static internal::String ExtractSummary(const char* message);
    104 
    105   // The name of the source file where the test part took place, or
    106   // NULL if the source file is unknown.
    107   internal::String file_name_;
    108   // The line in the source file where the test part took place, or -1
    109   // if the line number is unknown.
    110   int line_number_;
    111   internal::String summary_;  // The test failure summary.
    112   internal::String message_;  // The test failure message.
    113 };
    114 
    115 // Prints a TestPartResult object.
    116 std::ostream& operator<<(std::ostream& os, const TestPartResult& result);
    117 
    118 // An array of TestPartResult objects.
    119 //
    120 // We define this class as we cannot use STL containers when compiling
    121 // Google Test with MSVC 7.1 and exceptions disabled.
    122 //
    123 // Don't inherit from TestPartResultArray as its destructor is not
    124 // virtual.
    125 class TestPartResultArray {
    126  public:
    127   TestPartResultArray();
    128   ~TestPartResultArray();
    129 
    130   // Appends the given TestPartResult to the array.
    131   void Append(const TestPartResult& result);
    132 
    133   // Returns the TestPartResult at the given index (0-based).
    134   const TestPartResult& GetTestPartResult(int index) const;
    135 
    136   // Returns the number of TestPartResult objects in the array.
    137   int size() const;
    138  private:
    139   // Internally we use a list to simulate the array.  Yes, this means
    140   // that random access is O(N) in time, but it's OK for its purpose.
    141   internal::List<TestPartResult>* const list_;
    142 
    143   GTEST_DISALLOW_COPY_AND_ASSIGN_(TestPartResultArray);
    144 };
    145 
    146 // This interface knows how to report a test part result.
    147 class TestPartResultReporterInterface {
    148  public:
    149   virtual ~TestPartResultReporterInterface() {}
    150 
    151   virtual void ReportTestPartResult(const TestPartResult& result) = 0;
    152 };
    153 
    154 namespace internal {
    155 
    156 // This helper class is used by {ASSERT|EXPECT}_NO_FATAL_FAILURE to check if a
    157 // statement generates new fatal failures. To do so it registers itself as the
    158 // current test part result reporter. Besides checking if fatal failures were
    159 // reported, it only delegates the reporting to the former result reporter.
    160 // The original result reporter is restored in the destructor.
    161 // INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
    162 class HasNewFatalFailureHelper : public TestPartResultReporterInterface {
    163  public:
    164   HasNewFatalFailureHelper();
    165   virtual ~HasNewFatalFailureHelper();
    166   virtual void ReportTestPartResult(const TestPartResult& result);
    167   bool has_new_fatal_failure() const { return has_new_fatal_failure_; }
    168  private:
    169   bool has_new_fatal_failure_;
    170   TestPartResultReporterInterface* original_reporter_;
    171 
    172   GTEST_DISALLOW_COPY_AND_ASSIGN_(HasNewFatalFailureHelper);
    173 };
    174 
    175 }  // namespace internal
    176 
    177 }  // namespace testing
    178 
    179 #endif  // GTEST_INCLUDE_GTEST_GTEST_TEST_PART_H_
    180