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#include "expression_test_runner.hpp"
#include "expression_test_logger.hpp"
#include "expression_test_parser.hpp"
#include "filesystem.hpp"
#include "test_runner_common.hpp"
#include <mbgl/util/io.hpp>
#include <rapidjson/writer.h>
#include <rapidjson/prettywriter.h>
#include <rapidjson/stringbuffer.h>
#include <sstream>
#include <regex>
using namespace std::literals;
namespace {
std::string simpleDiff(const Value& result, const Value& expected) {
std::vector<std::string> resultTokens {tokenize(toJSON(result, 2, true))};
std::vector<std::string> expectedTokens {tokenize(toJSON(expected, 2, true))};
std::size_t maxLength = std::max(resultTokens.size(), expectedTokens.size());
std::ostringstream diff;
const auto flush = [] (const std::vector<std::string>& vec, std::size_t pos, std::ostringstream& out, std::string separator) {
for (std::size_t j = pos; j < vec.size(); ++j) {
out << separator << vec[j] << std::endl;
}
};
for (std::size_t i = 0; i < maxLength; ++i) {
if (resultTokens.size() <= i) {
flush(expectedTokens, i, diff, "-"s);
break;
}
if (expectedTokens.size() <= i) {
flush(resultTokens, i, diff, "+"s);
break;
}
if (resultTokens[i] != expectedTokens[i]) {
diff << "-"s << expectedTokens[i] << std::endl;
diff << "+"s << resultTokens[i] << std::endl;
} else {
diff << resultTokens[i] << std::endl;
}
}
return diff.str();
}
void rewriteRoundtrippedType(const std::string& expected, std::string& actual) {
if (!expected.rfind("array", 0) && !actual.rfind("array", 0)) {
actual = expected;
}
}
void updateTest(TestData& data) {
assert(data.document["expected"].IsObject());
auto& expected = data.document["expected"];
auto compiled = toDocument(toValue(data.result.compiled));
assert(!compiled.HasParseError());
expected["compiled"].Swap(compiled);
if (data.result.outputs) {
auto outputs = toDocument(stripPrecision(data.result.outputs.value_or(Value{})));
assert(!outputs.HasParseError());
expected["outputs"].Swap(outputs);
} else {
expected.RemoveMember("outputs");
}
if (data.result.serialized) {
auto serialized = toDocument(*data.result.serialized);
assert(!serialized.HasParseError());
expected["serialized"].Swap(serialized);
} else {
expected.RemoveMember("serialized");
}
}
void writeTestData(const JSDocument& document, const std::string& rootPath, const std::string& id) {
rapidjson::StringBuffer buffer;
rapidjson::PrettyWriter<rapidjson::StringBuffer> writer(buffer);
writer.SetFormatOptions(rapidjson::kFormatSingleLineArray);
writer.SetIndent(' ', 2);
document.Accept(writer);
buffer.Put('\n');
filesystem::path path = filesystem::path(rootPath) / id / "test.json"s;
try {
util::write_file(path.string(), {buffer.GetString(), buffer.GetSize()});
} catch (std::exception&) {
printf(ANSI_COLOR_RED "* ERROR can't update '%s' test" ANSI_COLOR_RESET "\n", id.c_str());
}
}
} // namespace
TestRunOutput runExpressionTest(TestData& data, const std::string& rootPath, const std::string& id) {
TestRunOutput output(id);
const auto evaluateExpression = [&data](std::unique_ptr<style::expression::Expression>& expression,
TestResult& result) {
assert(expression);
std::vector<Value> outputs;
if (!data.inputs.empty()) {
for (const auto& input : data.inputs) {
auto evaluationResult = expression->evaluate(input.zoom, input.feature, input.heatmapDensity);
if (!evaluationResult) {
std::unordered_map<std::string, Value> error{{"error", Value{evaluationResult.error().message}}};
outputs.emplace_back(Value{std::move(error)});
} else {
auto value = toValue(*evaluationResult);
assert(value);
outputs.emplace_back(Value{*value});
}
}
}
result.outputs = {Value{std::move(outputs)}};
};
// Parse expression
auto parsedExpression = parseExpression(data.document["expression"], data.spec, data.result);
output.expression = toJSON(data.result.expression.value_or(Value{}), 2, true);
// Evaluate expression
if (parsedExpression) {
evaluateExpression(parsedExpression, data.result);
output.serialized = toJSON(data.result.serialized.value_or(Value{}), 2, true);
// round trip
auto recompiledExpression = parseExpression(data.result.serialized, data.spec, data.recompiled);
if (recompiledExpression) {
evaluateExpression(recompiledExpression, data.recompiled);
rewriteRoundtrippedType(data.expected.compiled.serializedType,
data.recompiled.compiled.serializedType);
}
}
if (getenv("UPDATE")) {
output.passed = true;
updateTest(data);
writeTestData(data.document, rootPath, id);
return output;
}
bool compileOk = data.result.compiled == data.expected.compiled;
bool evalOk = compileOk && deepEqual(data.result.outputs, data.expected.outputs);
bool recompileOk = true;
bool roundTripOk = true;
bool serializationOk = true;
if (data.expected.compiled.success) {
serializationOk = compileOk && deepEqual(data.result.serialized, data.expected.serialized);
recompileOk = compileOk && data.recompiled.compiled == data.expected.compiled;
roundTripOk = recompileOk && deepEqual(data.recompiled.outputs, data.expected.outputs);
}
output.passed = compileOk && evalOk && recompileOk && roundTripOk && serializationOk;
if (!compileOk) {
auto resultValue = toValue(data.result.compiled);
auto expectedValue = toValue(data.expected.compiled);
output.text += "Compiled expression difference:\n"s +
simpleDiff(resultValue, expectedValue) +
"\n"s;
}
if (compileOk && !serializationOk) {
auto diff = simpleDiff(data.expected.serialized.value_or(Value{}),
data.result.serialized.value_or(Value{}));
output.text += "Serialized expression difference:\n"s + diff + "\n"s;
}
if (compileOk && !recompileOk) {
auto recompiledValue = toValue(data.recompiled.compiled);
auto expectedValue = toValue(data.expected.compiled);
output.text += "Recompiled expression difference:\n"s +
simpleDiff(recompiledValue, expectedValue) +
"\n"s;
}
if (compileOk && !evalOk) {
auto diff = simpleDiff(data.expected.outputs.value_or(Value{}),
data.result.outputs.value_or(Value{}));
output.text += "Expression outputs difference:\n"s + diff + "\n"s;
}
if (recompileOk && !roundTripOk) {
auto diff = simpleDiff(data.expected.outputs.value_or(Value{}),
data.recompiled.outputs.value_or(Value{}));
output.text += "Roundtripped through serialize expression outputs difference:\n"s +
diff + "\n"s;
}
return output;
}
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