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// -*- mode: c++; c-basic-offset:4 -*-
// This file is part of libdap, A C++ implementation of the OPeNDAP Data
// Access Protocol.
// Copyright (c) 2013 OPeNDAP, Inc.
// Author: James Gallagher <jgallagher@opendap.org>
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
//
// You can contact OPeNDAP, Inc. at PO Box 112, Saunderstown, RI. 02874-0112.
#include "config.h"
#include <cppunit/TestFixture.h>
#include <cppunit/TestAssert.h>
#include <cppunit/extensions/TestFactoryRegistry.h>
#include <cppunit/ui/text/TestRunner.h>
#include <cppunit/extensions/HelperMacros.h>
#include <cppunit/CompilerOutputter.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <fcntl.h>
#include <stdint.h>
#include <iostream>
#include <fstream>
#include <sstream>
#include <iomanip>
#include <cstring>
#include "D4StreamMarshaller.h"
#include "debug.h"
#include "run_tests_cppunit.h"
#include "test_config.h"
static bool write_baselines = false;
#if WORDS_BIGENDIAN
const static string path = (string)TEST_SRC_DIR + "/D4-marshaller/big-endian";
#else
const static string path = (string) TEST_SRC_DIR + "/D4-marshaller/little-endian";
#endif
using namespace std;
using namespace libdap;
using namespace CppUnit;
class D4MarshallerTest: public CppUnit::TestFixture {
CPPUNIT_TEST_SUITE (D4MarshallerTest);
CPPUNIT_TEST (test_cmp);
CPPUNIT_TEST (test_scalars);
CPPUNIT_TEST (test_real_scalars);
CPPUNIT_TEST (test_str);
CPPUNIT_TEST (test_opaque);
CPPUNIT_TEST (test_vector);
CPPUNIT_TEST_SUITE_END( );
/**
* Compare the contents of a file with a memory buffer
*/
bool cmp(const char *buf, unsigned int len, string file)
{
fstream in;
in.open(file.c_str(), fstream::binary | fstream::in);
if (!in) throw Error("Could not open file: " + file);
vector<char> fbuf(len);
in.read(fbuf.data(), len);
if (!in) {
ostringstream oss("Could not read ");
oss << len << " bytes from file.";
throw Error(oss.str());
}
for (unsigned int i = 0; i < len; ++i)
if (buf[i] != fbuf[i]) {
DBG(cerr << "Response differs from baseline at byte " << i << endl);
DBG(
cerr << "Expected: " << setfill('0') << setw(2) << hex << (unsigned int )fbuf[i] << "; got: "
<< (unsigned int )buf[i] << dec << endl);
return false;
}
return true;
}
void write_binary_file(const char *buf, int len, string file)
{
fstream out;
out.open(file.c_str(), fstream::binary | fstream::out);
if (!out) throw Error("Could not open file: " + file);
out.write(buf, len);
}
public:
D4MarshallerTest()
{
}
void setUp()
{
}
void tearDown()
{
}
void test_cmp()
{
char buf[16] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 };
DBG(cerr << "Path: " << path << endl);
CPPUNIT_ASSERT(cmp(buf, 16, path + "/test_cmp.dat"));
}
void test_scalars()
{
ostringstream oss;
// computes checksums and writes data
try {
D4StreamMarshaller dsm(oss);
dsm.reset_checksum();
dsm.put_byte(17);
dsm.put_checksum();
DBG(cerr << "test_scalars: checksum: " << dsm.get_checksum() << endl);
dsm.reset_checksum();
dsm.put_int16(17);
dsm.put_checksum();
DBG(cerr << "checksum: " << dsm.get_checksum() << endl);
dsm.reset_checksum();
dsm.put_int32(17);
dsm.put_checksum();
DBG(cerr << "checksum: " << dsm.get_checksum() << endl);
dsm.reset_checksum();
dsm.put_int64(17);
dsm.put_checksum();
DBG(cerr << "checksum: " << dsm.get_checksum() << endl);
dsm.reset_checksum();
dsm.put_uint16(17);
dsm.put_checksum();
DBG(cerr << "checksum: " << dsm.get_checksum() << endl);
dsm.reset_checksum();
dsm.put_uint32(17);
dsm.put_checksum();
DBG(cerr << "checksum: " << dsm.get_checksum() << endl);
dsm.reset_checksum();
dsm.put_uint64(17);
dsm.put_checksum();
DBG(cerr << "checksum: " << dsm.get_checksum() << endl);
dsm.reset_checksum();
if (write_baselines)
write_binary_file(oss.str().data(), oss.str().length(), path + "/test_scalars_1_bin.dat");
CPPUNIT_ASSERT(cmp(oss.str().data(), oss.str().length(), path + "/test_scalars_1_bin.dat"));
}
catch (Error &e) {
cerr << "Error: " << e.get_error_message() << endl;
CPPUNIT_FAIL("Caught an exception.");
}
}
void test_real_scalars()
{
ostringstream oss;
// computes checksums and writes data
try {
D4StreamMarshaller dsm(oss);
dsm.reset_checksum();
dsm.put_float32(17);
dsm.put_checksum();
DBG(cerr << "test_real_scalars: checksum: " << dsm.get_checksum() << endl);
dsm.reset_checksum();
dsm.put_float64(17);
dsm.put_checksum();
DBG(cerr << "checksum: " << dsm.get_checksum() << endl);
dsm.reset_checksum();
if (write_baselines)
write_binary_file(oss.str().data(), oss.str().length(), path + "/test_scalars_2_bin.dat");
CPPUNIT_ASSERT(cmp(oss.str().data(), oss.str().length(), path + "/test_scalars_2_bin.dat"));
}
catch (Error &e) {
cerr << "Error: " << e.get_error_message() << endl;
CPPUNIT_FAIL("Caught an exception.");
}
}
void test_str()
{
ostringstream oss;
try {
D4StreamMarshaller dsm(oss);
dsm.reset_checksum();
dsm.put_str("This is a test string with 40 characters");
dsm.put_checksum();
DBG(cerr << "test_str: checksum: " << dsm.get_checksum() << endl);
dsm.reset_checksum();
// 37 chars --> 0x25 --> 0x25 as a 128-bit varint
dsm.put_url("http://www.opendap.org/lame/unit/test");
dsm.put_checksum();
DBG(cerr << "checksum: " << dsm.get_checksum() << endl);
dsm.reset_checksum();
// True these are not really scalars...
if (write_baselines)
write_binary_file(oss.str().data(), oss.str().length(), path + "/test_scalars_3_bin.dat");
CPPUNIT_ASSERT(cmp(oss.str().data(), oss.str().length(), path + "/test_scalars_3_bin.dat"));
}
catch (Error &e) {
cerr << "Error: " << e.get_error_message() << endl;
CPPUNIT_FAIL("Caught an exception.");
}
}
void test_opaque()
{
ostringstream oss;
try {
D4StreamMarshaller dsm(oss);
vector<unsigned char> buf(32768);
for (int i = 0; i < 32768; ++i)
buf[i] = i % (1 << 7);
dsm.reset_checksum();
dsm.put_opaque_dap4(reinterpret_cast<char*>(buf.data()), 32768);
dsm.put_checksum();
DBG(cerr << "test_opaque: checksum: " << dsm.get_checksum() << endl);
dsm.reset_checksum();
if (write_baselines)
write_binary_file(oss.str().data(), oss.str().length(), path + "/test_opaque_1_bin.dat");
CPPUNIT_ASSERT(cmp(oss.str().data(), oss.str().length(), path + "/test_opaque_1_bin.dat"));
}
catch (Error &e) {
cerr << "Error: " << e.get_error_message() << endl;
CPPUNIT_FAIL("Caught an exception.");
}
}
void test_vector()
{
ostringstream oss;
try {
D4StreamMarshaller dsm(oss);
vector<unsigned char> buf1(32768);
for (int i = 0; i < 32768; ++i)
buf1[i] = i % (1 << 7);
dsm.reset_checksum();
dsm.put_vector(reinterpret_cast<char*>(buf1.data()), 32768);
dsm.put_checksum();
DBG(cerr << "test_vector: checksum: " << dsm.get_checksum() << endl);
dsm.reset_checksum();
vector<dods_int32> buf2(32768);
for (int i = 0; i < 32768; ++i)
buf2[i] = i % (1 << 9);
dsm.put_vector(reinterpret_cast<char*>(buf2.data()), 32768, sizeof(dods_int32));
dsm.put_checksum();
DBG(cerr << "checksum: " << dsm.get_checksum() << endl);
dsm.reset_checksum();
vector<dods_float64> buf3(32768);
for (int i = 0; i < 32768; ++i)
buf3[i] = i % (1 << 9);
dsm.put_vector_float64(reinterpret_cast<char*>(buf3.data()), 32768);
dsm.put_checksum();
DBG(cerr << "checksum: " << dsm.get_checksum() << endl);
if (write_baselines)
write_binary_file(oss.str().data(), oss.str().length(), path + "/test_vector_1_bin.dat");
CPPUNIT_ASSERT(cmp(oss.str().data(), oss.str().length(), path + "/test_vector_1_bin.dat"));
}
catch (Error &e) {
cerr << "Error: " << e.get_error_message() << endl;
CPPUNIT_FAIL("Caught an exception.");
}
}
#if 0
void test_varying_vector() {
ostringstream oss;
try {
D4StreamMarshaller dsm(oss);
vector<unsigned char> buf1(32768);
for (int i = 0; i < 32768; ++i)
buf1[i] = i % (1 << 7);
dsm.reset_checksum();
dsm.put_varying_vector(reinterpret_cast<char*>(buf1.data()), 32768);
dsm.put_checksum();
DBG(cerr << "test_varying_vector: first checksum: " << dsm.get_checksum() << endl);
dsm.reset_checksum();
vector<dods_int32> buf2(32768);
for (int i = 0; i < 32768; ++i)
buf2[i] = i % (1 << 9);
dsm.put_varying_vector(reinterpret_cast<char*>(buf2.data()), 32768, sizeof(dods_int32));
dsm.put_checksum();
DBG(cerr << "second checksum: " << dsm.get_checksum() << endl);
dsm.reset_checksum();
vector<dods_float64> buf3(32768);
for (int i = 0; i < 32768; ++i)
buf3[i] = i % (1 << 9);
dsm.put_varying_vector(reinterpret_cast<char*>(buf3.data()), 32768, sizeof(dods_float64), dods_float64_c);
dsm.put_checksum();
DBG(cerr << "third checksum: " << dsm.get_checksum() << endl);
if (write_baselines) write_binary_file(oss.str().data(), oss.str().length(), path + "/test_vector_2_bin.dat");
CPPUNIT_ASSERT(cmp(oss.str().data(), oss.str().length(), path + "/test_vector_2_bin.dat"));
}
catch (Error &e) {
cerr << "Error: " << e.get_error_message() << endl;
CPPUNIT_FAIL("Caught an exception.");
}
}
#endif
};
CPPUNIT_TEST_SUITE_REGISTRATION (D4MarshallerTest);
int main(int argc, char*argv[])
{
return run_tests<D4MarshallerTest>(argc, argv) ? 0: 1;
}
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