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// Copyright (c) 2011 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "courgette/base_test_unittest.h"
#include <stddef.h>
#include <string>
#include "courgette/courgette.h"
#include "courgette/streams.h"
#include "courgette/third_party/bsdiff.h"
class VersioningTest : public BaseTest {
public:
void TestApplyingOldBsDiffPatch(const char* src_file,
const char* patch_file,
const char* expected_file) const;
};
void VersioningTest::TestApplyingOldBsDiffPatch(
const char* src_file,
const char* patch_file,
const char* expected_file) const {
std::string old_buffer = FileContents(src_file);
std::string new_buffer = FileContents(patch_file);
std::string expected_buffer = FileContents(expected_file);
courgette::SourceStream old_stream;
courgette::SourceStream patch_stream;
old_stream.Init(old_buffer);
patch_stream.Init(new_buffer);
courgette::SinkStream generated_stream;
courgette::BSDiffStatus status = courgette::ApplyBinaryPatch(
&old_stream, &patch_stream, &generated_stream);
EXPECT_EQ(status, courgette::OK);
size_t expected_length = expected_buffer.size();
size_t generated_length = generated_stream.Length();
EXPECT_EQ(generated_length, expected_length);
EXPECT_EQ(0, memcmp(generated_stream.Buffer(),
expected_buffer.c_str(),
expected_length));
}
TEST_F(VersioningTest, BsDiff) {
TestApplyingOldBsDiffPatch("setup1.exe", "setup1-setup2.v1.bsdiff",
"setup2.exe");
TestApplyingOldBsDiffPatch("chrome64_1.exe", "chrome64-1-2.v1.bsdiff",
"chrome64_2.exe");
// We also need a way to test that newly generated patches are appropriately
// applicable by older clients... not sure of the best way to do that.
}
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