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#include <test.hpp>
// 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 int32 will
// not be aligned properly. So we test that even in that case the int32
// will be extracted properly.
TEST_CASE("check alignment issues for fixed32 field") {
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("fixed32/data-zero"));
protozero::pbf_reader item{abuffer.data() + n, abuffer.size() - n};
REQUIRE(item.next());
REQUIRE(item.get_fixed32() == 0UL);
REQUIRE_FALSE(item.next());
}
SECTION("positive") {
abuffer.append(load_data("fixed32/data-pos"));
protozero::pbf_reader item{abuffer.data() + n, abuffer.size() - n};
REQUIRE(item.next());
REQUIRE(item.get_fixed32() == 1UL);
REQUIRE_FALSE(item.next());
}
SECTION("max") {
abuffer.append(load_data("fixed32/data-max"));
protozero::pbf_reader item{abuffer.data() + n, abuffer.size() - n};
REQUIRE(item.next());
REQUIRE(item.get_fixed32() == std::numeric_limits<uint32_t>::max());
REQUIRE_FALSE(item.next());
}
SECTION("end_of_buffer") {
abuffer.append(load_data("fixed32/data-pos"));
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_fixed32(), protozero::end_of_buffer_exception);
}
}
SECTION("assert detecting tag==0") {
abuffer.append(load_data("fixed32/data-zero"));
protozero::pbf_reader item{abuffer.data() + n, abuffer.size() - n};
REQUIRE_THROWS_AS(item.get_fixed32(), assert_error);
REQUIRE(item.next());
REQUIRE(item.get_fixed32() == 0UL);
REQUIRE_THROWS(item.get_fixed32());
REQUIRE_FALSE(item.next());
}
SECTION("skip") {
abuffer.append(load_data("fixed32/data-zero"));
protozero::pbf_reader item{abuffer.data() + n, abuffer.size() - n};
REQUIRE_THROWS_AS(item.skip(), assert_error);
REQUIRE(item.next());
item.skip();
REQUIRE_THROWS(item.skip());
REQUIRE_FALSE(item.next());
}
}
}
TEST_CASE("check alignment issues for fixed64 field") {
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("fixed64/data-zero"));
protozero::pbf_reader item{abuffer.data() + n, abuffer.size() - n};
REQUIRE(item.next());
REQUIRE(item.get_fixed64() == 0ULL);
REQUIRE_FALSE(item.next());
}
SECTION("positive") {
abuffer.append(load_data("fixed64/data-pos"));
protozero::pbf_reader item{abuffer.data() + n, abuffer.size() - n};
REQUIRE(item.next());
REQUIRE(item.get_fixed64() == 1ULL);
REQUIRE_FALSE(item.next());
}
SECTION("max") {
abuffer.append(load_data("fixed64/data-max"));
protozero::pbf_reader item{abuffer.data() + n, abuffer.size() - n};
REQUIRE(item.next());
REQUIRE(item.get_fixed64() == std::numeric_limits<uint64_t>::max());
REQUIRE_FALSE(item.next());
}
SECTION("end_of_buffer") {
abuffer.append(load_data("fixed64/data-pos"));
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_fixed64(), protozero::end_of_buffer_exception);
}
}
}
}
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