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#include "util/read_compressed.hh"
#include "util/file.hh"
#include "util/have.hh"
#define BOOST_TEST_MODULE ReadCompressedTest
#include <boost/test/unit_test.hpp>
#include <boost/scoped_ptr.hpp>
#include <fstream>
#include <string>
#include <stdlib.h>
namespace util {
namespace {
void ReadLoop(ReadCompressed &reader, void *to_void, std::size_t amount) {
uint8_t *to = static_cast<uint8_t*>(to_void);
while (amount) {
std::size_t ret = reader.Read(to, amount);
BOOST_REQUIRE(ret);
to += ret;
amount -= ret;
}
}
const uint32_t kSize4 = 100000 / 4;
std::string WriteRandom() {
char name[] = "tempXXXXXX";
scoped_fd original(mkstemp(name));
BOOST_REQUIRE(original.get() > 0);
for (uint32_t i = 0; i < kSize4; ++i) {
WriteOrThrow(original.get(), &i, sizeof(uint32_t));
}
return name;
}
void VerifyRead(ReadCompressed &reader) {
for (uint32_t i = 0; i < kSize4; ++i) {
uint32_t got;
ReadLoop(reader, &got, sizeof(uint32_t));
BOOST_CHECK_EQUAL(i, got);
}
char ignored;
BOOST_CHECK_EQUAL((std::size_t)0, reader.Read(&ignored, 1));
// Test double EOF call.
BOOST_CHECK_EQUAL((std::size_t)0, reader.Read(&ignored, 1));
}
void TestRandom(const char *compressor) {
std::string name(WriteRandom());
char gzname[] = "tempXXXXXX";
scoped_fd gzipped(mkstemp(gzname));
std::string command(compressor);
#ifdef __CYGWIN__
command += ".exe";
#endif
command += " <\"";
command += name;
command += "\" >\"";
command += gzname;
command += "\"";
BOOST_REQUIRE_EQUAL(0, system(command.c_str()));
BOOST_CHECK_EQUAL(0, unlink(name.c_str()));
BOOST_CHECK_EQUAL(0, unlink(gzname));
ReadCompressed reader(gzipped.release());
VerifyRead(reader);
}
BOOST_AUTO_TEST_CASE(Uncompressed) {
TestRandom("cat");
}
#ifdef HAVE_ZLIB
BOOST_AUTO_TEST_CASE(ReadGZ) {
TestRandom("gzip");
}
#endif // HAVE_ZLIB
#ifdef HAVE_BZLIB
BOOST_AUTO_TEST_CASE(ReadBZ) {
TestRandom("bzip2");
}
#endif // HAVE_BZLIB
#ifdef HAVE_XZLIB
BOOST_AUTO_TEST_CASE(ReadXZ) {
TestRandom("xz");
}
#endif
BOOST_AUTO_TEST_CASE(IStream) {
std::string name(WriteRandom());
std::fstream stream(name.c_str(), std::ios::in);
BOOST_CHECK_EQUAL(0, unlink(name.c_str()));
ReadCompressed reader;
reader.Reset(stream);
VerifyRead(reader);
}
} // namespace
} // namespace util
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