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// Copyright 2008 Google Inc.
// All Rights Reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// 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.
//     * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Author: wan@google.com (Zhanyong Wan)

#include "gtest/gtest-typed-test.h"
#include "gtest/gtest.h"

namespace testing {
namespace internal {

#if GTEST_HAS_TYPED_TEST_P

// Skips to the first non-space char in str. Returns an empty string if str
// contains only whitespace characters.
static const char* SkipSpaces(const char* str) {
  while (IsSpace(*str))
    str++;
  return str;
}

// Verifies that registered_tests match the test names in
// defined_test_names_; returns registered_tests if successful, or
// aborts the program otherwise.
const char* TypedTestCasePState::VerifyRegisteredTestNames(
    const char* file, int line, const char* registered_tests) {
  typedef ::std::set<const char*>::const_iterator DefinedTestIter;
  registered_ = true;

  // Skip initial whitespace in registered_tests since some
  // preprocessors prefix stringizied literals with whitespace.
  registered_tests = SkipSpaces(registered_tests);

  Message errors;
  ::std::set<std::string> tests;
  for (const char* names = registered_tests; names != NULL;
       names = SkipComma(names)) {
    const std::string name = GetPrefixUntilComma(names);
    if (tests.count(name) != 0) {
      errors << "Test " << name << " is listed more than once.\n";
      continue;
    }

    bool found = false;
    for (DefinedTestIter it = defined_test_names_.begin();
         it != defined_test_names_.end();
         ++it) {
      if (name == *it) {
        found = true;
        break;
      }
    }

    if (found) {
      tests.insert(name);
    } else {
      errors << "No test named " << name
             << " can be found in this test case.\n";
    }
  }

  for (DefinedTestIter it = defined_test_names_.begin();
       it != defined_test_names_.end();
       ++it) {
    if (tests.count(*it) == 0) {
      errors << "You forgot to list test " << *it << ".\n";
    }
  }

  const std::string& errors_str = errors.GetString();
  if (errors_str != "") {
    fprintf(stderr, "%s %s", FormatFileLocation(file, line).c_str(),
            errors_str.c_str());
    fflush(stderr);
    posix::Abort();
  }

  return registered_tests;
}

#endif  // GTEST_HAS_TYPED_TEST_P

}  // namespace internal
}  // namespace testing