FM / float

/srv/osrm/osrm-backend/third_party/protozero/test/t/float/

/srv/osrm/osrm-backend/third_party/protozero/test/t/float

Name	Size	Mode	Actions
data-neg.pbf	5	0644	edit dl rm
data-pos.pbf	5	0644	edit dl rm
data-zero.pbf	5	0644	edit dl rm
reader_test_cases.cpp	2341	0644	edit dl rm
testcase.cpp	280	0644	edit dl rm
testcase.proto	123	0644	edit dl rm

Edit: /srv/osrm/osrm-backend/third_party/protozero/test/t/float/reader_test_cases.cpp (2341B)

#include <test.hpp>

TEST_CASE("read float field") {
    // Run these tests twice, the second time we basically move the data
    // one byte down in the buffer. It doesn't matter how the data or buffer
    // is aligned before that, in at least one of these cases the float will
    // not be aligned properly. So we test that even in that case the float
    // will be extracted properly.

for (std::string::size_type n = 0; n < 2; ++n) {
        std::string abuffer;
        abuffer.reserve(1000);
        abuffer.append(n, '\0');

SECTION("zero") {
            abuffer.append(load_data("float/data-zero"));
            protozero::pbf_reader item{abuffer.data() + n, abuffer.size() - n};

REQUIRE(item.next());
            REQUIRE(double(item.get_float()) == Approx(0.0));
            REQUIRE_FALSE(item.next());
        }

SECTION("positive") {
            abuffer.append(load_data("float/data-pos"));
            protozero::pbf_reader item{abuffer.data() + n, abuffer.size() - n};

REQUIRE(item.next());
            REQUIRE(double(item.get_float()) == Approx(5.34));
            REQUIRE_FALSE(item.next());
        }

SECTION("negative") {
            abuffer.append(load_data("float/data-neg"));
            protozero::pbf_reader item{abuffer.data() + n, abuffer.size() - n};

REQUIRE(item.next());
            REQUIRE(double(item.get_float()) == Approx(-1.71));
            REQUIRE_FALSE(item.next());
        }

SECTION("end_of_buffer") {
            abuffer.append(load_data("float/data-neg"));

for (std::string::size_type i = 1; i < abuffer.size() - n; ++i) {
                protozero::pbf_reader item{abuffer.data() + n, i};
                REQUIRE(item.next());
                REQUIRE_THROWS_AS(item.get_float(), protozero::end_of_buffer_exception);
            }
        }
    }
}

TEST_CASE("write float field") {
    std::string buffer;
    protozero::pbf_writer pw{buffer};

SECTION("zero") {
        pw.add_float(1, 0.0F);
        REQUIRE(buffer == load_data("float/data-zero"));
    }

SECTION("positive") {
        pw.add_float(1, 5.34F);
        REQUIRE(buffer == load_data("float/data-pos"));
    }

SECTION("negative") {
        pw.add_float(1, -1.71F);
        REQUIRE(buffer == load_data("float/data-neg"));
    }
}

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