// Copyright 2008 Google Inc.
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//
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// 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.
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// 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
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#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;
}

static std::vector<std::string> SplitIntoTestNames(const char *src)
{
    std::vector<std::string> name_vec;
    src = SkipSpaces(src);
    for (; src != nullptr; src = SkipComma(src)) {
        name_vec.push_back(StripTrailingSpaces(GetPrefixUntilComma(src)));
    }
    return name_vec;
}

// Verifies that registered_tests match the test names in
// registered_tests_; returns registered_tests if successful, or
// aborts the program otherwise.
const char *TypedTestSuitePState::VerifyRegisteredTestNames(
    const char *test_suite_name, const char *file, int line,
    const char *registered_tests)
{
    RegisterTypeParameterizedTestSuite(test_suite_name, CodeLocation(file, line));

    typedef RegisteredTestsMap::const_iterator RegisteredTestIter;
    registered_ = true;

    std::vector<std::string> name_vec = SplitIntoTestNames(registered_tests);

    Message errors;

    std::set<std::string> tests;
    for (std::vector<std::string>::const_iterator name_it = name_vec.begin();
         name_it != name_vec.end(); ++name_it) {
        const std::string &name = *name_it;
        if (tests.count(name) != 0) {
            errors << "Test " << name << " is listed more than once.\n";
            continue;
        }

        if (registered_tests_.count(name) != 0) {
            tests.insert(name);
        } else {
            errors << "No test named " << name
                   << " can be found in this test suite.\n";
        }
    }

    for (RegisteredTestIter it = registered_tests_.begin();
         it != registered_tests_.end();
         ++it) {
        if (tests.count(it->first) == 0) {
            errors << "You forgot to list test " << it->first << ".\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
