88 lines
2.6 KiB
C++
88 lines
2.6 KiB
C++
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#include "testing/testing.hpp"
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#include "mwm_diff/diff.hpp"
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#include "platform/platform.hpp"
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#include "coding/file_writer.hpp"
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#include "coding/internal/file_data.hpp"
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#include "base/file_name_utils.hpp"
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#include "base/logging.hpp"
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#include "base/scope_guard.hpp"
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#include <vector>
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namespace generator::diff_tests
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{
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using namespace mwm_diff;
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using std::string, std::vector;
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UNIT_TEST(IncrementalUpdates_Smoke)
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{
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base::ScopedLogAbortLevelChanger ignoreLogError(base::LogLevel::LCRITICAL);
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string const oldMwmPath = base::JoinPath(GetPlatform().WritableDir(), "minsk-pass.mwm");
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string const newMwmPath1 = base::JoinPath(GetPlatform().WritableDir(), "minsk-pass-new1.mwm");
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string const newMwmPath2 = base::JoinPath(GetPlatform().WritableDir(), "minsk-pass-new2.mwm");
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string const diffPath = base::JoinPath(GetPlatform().WritableDir(), "minsk-pass.mwmdiff");
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SCOPE_GUARD(cleanup, [&]
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{
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FileWriter::DeleteFileX(newMwmPath1);
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FileWriter::DeleteFileX(newMwmPath2);
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FileWriter::DeleteFileX(diffPath);
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});
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{
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// Create an empty file.
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FileWriter writer(newMwmPath1);
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}
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base::Cancellable cancellable;
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TEST(MakeDiff(oldMwmPath, newMwmPath1, diffPath), ());
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TEST_EQUAL(ApplyDiff(oldMwmPath, newMwmPath2, diffPath, cancellable), DiffApplicationResult::Ok, ());
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{
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// Alter the old mwm slightly.
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vector<uint8_t> oldMwmContents = base::ReadFile(oldMwmPath);
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size_t const sz = oldMwmContents.size();
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for (size_t i = 3 * sz / 10; i < 4 * sz / 10; i++)
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oldMwmContents[i] += static_cast<uint8_t>(i);
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FileWriter writer(newMwmPath1);
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writer.Write(oldMwmContents.data(), oldMwmContents.size());
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}
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TEST(MakeDiff(oldMwmPath, newMwmPath1, diffPath), ());
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TEST_EQUAL(ApplyDiff(oldMwmPath, newMwmPath2, diffPath, cancellable), DiffApplicationResult::Ok, ());
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TEST(base::IsEqualFiles(newMwmPath1, newMwmPath2), ());
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cancellable.Cancel();
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TEST_EQUAL(ApplyDiff(oldMwmPath, newMwmPath2, diffPath, cancellable), DiffApplicationResult::Cancelled, ());
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cancellable.Reset();
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{
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// Corrupt the diff file contents.
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vector<uint8_t> diffContents = base::ReadFile(diffPath);
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// Leave the version bits intact.
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for (size_t i = 4; i < diffContents.size(); i += 2)
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diffContents[i] ^= 255;
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FileWriter writer(diffPath);
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writer.Write(diffContents.data(), diffContents.size());
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}
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TEST_EQUAL(ApplyDiff(oldMwmPath, newMwmPath2, diffPath, cancellable), DiffApplicationResult::Failed, ());
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{
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// Reset the diff file contents.
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FileWriter writer(diffPath);
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}
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TEST_EQUAL(ApplyDiff(oldMwmPath, newMwmPath2, diffPath, cancellable), DiffApplicationResult::Failed, ());
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}
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} // namespace generator::diff_tests
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