Run DCE after a LoopFlatten test to reduce spurious output [nfc]

[llvm-project.git] / third-party / unittest / googletest / include / gtest / gtest-test-part.h

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// met:
//
//     * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//     * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
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// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
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// IWYU pragma: private, include "gtest/gtest.h"
// IWYU pragma: friend gtest/.*
// IWYU pragma: friend gmock/.*

#ifndef GOOGLETEST_INCLUDE_GTEST_GTEST_TEST_PART_H_
#define GOOGLETEST_INCLUDE_GTEST_GTEST_TEST_PART_H_

#include <iosfwd>
#include <ostream>
#include <string>
#include <vector>

#include "gtest/internal/gtest-internal.h"
#include "gtest/internal/gtest-string.h"

GTEST_DISABLE_MSC_WARNINGS_PUSH_(4251 \
/* class A needs to have dll-interface to be used by clients of class B */)

namespace testing {

// A copyable object representing the result of a test part (i.e. an
// assertion or an explicit FAIL(), ADD_FAILURE(), or SUCCESS()).
//
// Don't inherit from TestPartResult as its destructor is not virtual.
class GTEST_API_ TestPartResult {
 public:
  // The possible outcomes of a test part (i.e. an assertion or an
  // explicit SUCCEED(), FAIL(), or ADD_FAILURE()).
  enum Type {
    kSuccess,          // Succeeded.
    kNonFatalFailure,  // Failed but the test can continue.
    kFatalFailure,     // Failed and the test should be terminated.
    kSkip              // Skipped.
  };

  // C'tor.  TestPartResult does NOT have a default constructor.
  // Always use this constructor (with parameters) to create a
  // TestPartResult object.
  TestPartResult(Type a_type, const char* a_file_name, int a_line_number,
                 const char* a_message)
      : type_(a_type),
        file_name_(a_file_name == nullptr ? "" : a_file_name),
        line_number_(a_line_number),
        summary_(ExtractSummary(a_message)),
        message_(a_message) {}

  // Gets the outcome of the test part.
  Type type() const { return type_; }

  // Gets the name of the source file where the test part took place, or
  // NULL if it's unknown.
  const char* file_name() const {
    return file_name_.empty() ? nullptr : file_name_.c_str();
  }

  // Gets the line in the source file where the test part took place,
  // or -1 if it's unknown.
  int line_number() const { return line_number_; }

  // Gets the summary of the failure message.
  const char* summary() const { return summary_.c_str(); }

  // Gets the message associated with the test part.
  const char* message() const { return message_.c_str(); }

  // Returns true if and only if the test part was skipped.
  bool skipped() const { return type_ == kSkip; }

  // Returns true if and only if the test part passed.
  bool passed() const { return type_ == kSuccess; }

  // Returns true if and only if the test part non-fatally failed.
  bool nonfatally_failed() const { return type_ == kNonFatalFailure; }

  // Returns true if and only if the test part fatally failed.
  bool fatally_failed() const { return type_ == kFatalFailure; }

  // Returns true if and only if the test part failed.
  bool failed() const { return fatally_failed() || nonfatally_failed(); }

 private:
  Type type_;

  // Gets the summary of the failure message by omitting the stack
  // trace in it.
  static std::string ExtractSummary(const char* message);

  // The name of the source file where the test part took place, or
  // "" if the source file is unknown.
  std::string file_name_;
  // The line in the source file where the test part took place, or -1
  // if the line number is unknown.
  int line_number_;
  std::string summary_;  // The test failure summary.
  std::string message_;  // The test failure message.
};

// Prints a TestPartResult object.
std::ostream& operator<<(std::ostream& os, const TestPartResult& result);

// An array of TestPartResult objects.
//
// Don't inherit from TestPartResultArray as its destructor is not
// virtual.
class GTEST_API_ TestPartResultArray {
 public:
  TestPartResultArray() = default;

  // Appends the given TestPartResult to the array.
  void Append(const TestPartResult& result);

  // Returns the TestPartResult at the given index (0-based).
  const TestPartResult& GetTestPartResult(int index) const;

  // Returns the number of TestPartResult objects in the array.
  int size() const;

 private:
  std::vector<TestPartResult> array_;

  TestPartResultArray(const TestPartResultArray&) = delete;
  TestPartResultArray& operator=(const TestPartResultArray&) = delete;
};

// This interface knows how to report a test part result.
class GTEST_API_ TestPartResultReporterInterface {
 public:
  virtual ~TestPartResultReporterInterface() = default;

  virtual void ReportTestPartResult(const TestPartResult& result) = 0;
};

namespace internal {

// This helper class is used by {ASSERT|EXPECT}_NO_FATAL_FAILURE to check if a
// statement generates new fatal failures. To do so it registers itself as the
// current test part result reporter. Besides checking if fatal failures were
// reported, it only delegates the reporting to the former result reporter.
// The original result reporter is restored in the destructor.
// INTERNAL IMPLEMENTATION - DO NOT USE IN A USER PROGRAM.
class GTEST_API_ HasNewFatalFailureHelper
    : public TestPartResultReporterInterface {
 public:
  HasNewFatalFailureHelper();
  ~HasNewFatalFailureHelper() override;
  void ReportTestPartResult(const TestPartResult& result) override;
  bool has_new_fatal_failure() const { return has_new_fatal_failure_; }

 private:
  bool has_new_fatal_failure_;
  TestPartResultReporterInterface* original_reporter_;

  HasNewFatalFailureHelper(const HasNewFatalFailureHelper&) = delete;
  HasNewFatalFailureHelper& operator=(const HasNewFatalFailureHelper&) = delete;
};

}  // namespace internal

}  // namespace testing

GTEST_DISABLE_MSC_WARNINGS_POP_()  //  4251

#endif  // GOOGLETEST_INCLUDE_GTEST_GTEST_TEST_PART_H_