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[core] Polyfill std::chrono::abs

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This commit is contained in:
John Firebaugh
2016-01-21 13:03:03 -08:00
parent cef5c331fe
commit fa894d7cbc
2 changed files with 9 additions and 3 deletions
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8
include/mbgl/util/chrono.hpp
View File

@@ -53,6 +53,14 @@ std::string iso8601(SystemTimePoint);
SystemTimePoint parseTimePoint(const char *);
// C++17 polyfill
template <class Rep, class Period, class = std::enable_if_t<
std::chrono::duration<Rep, Period>::min() < std::chrono::duration<Rep, Period>::zero()>>
constexpr std::chrono::duration<Rep, Period> abs(std::chrono::duration<Rep, Period> d)
{
return d >= d.zero() ? d : -d;
}
} // namespace util
} // namespace mbgl

4
test/storage/http_header_parsing.cpp
View File

@@ -39,15 +39,13 @@ TEST_F(Storage, HTTPCacheControlParsing) {
util::RunLoop loop;
OnlineFileSource fs(nullptr);
const Seconds now = toSeconds(SystemClock::now());
std::unique_ptr<FileRequest> req2 = fs.request({ Resource::Unknown, "http://127.0.0.1:3000/test?cachecontrol=max-age=120" },
[&](Response res) {
req2.reset();
EXPECT_EQ(nullptr, res.error);
ASSERT_TRUE(res.data.get());
EXPECT_EQ("Hello World!", *res.data);
EXPECT_GT(2, std::abs(toSeconds(*res.expires).count() - now.count() - 120)) << "Expiration date isn't about 120 seconds in the future";
EXPECT_GT(Seconds(2), util::abs(*res.expires - SystemClock::now() - Seconds(120))) << "Expiration date isn't about 120 seconds in the future";
EXPECT_FALSE(bool(res.modified));
EXPECT_FALSE(bool(res.etag));
loop.stop();