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/*
* Copyright 2017 WebAssembly Community Group participants
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "gtest/gtest.h"
#include <memory>
#include "wabt/wast-lexer.h"
#include "wabt/wast-parser.h"
using namespace wabt;
namespace {
std::string repeat(std::string s, size_t count) {
std::string result;
for (size_t i = 0; i < count; ++i) {
result += s;
}
return result;
}
Errors ParseInvalidModule(std::string text) {
Errors errors;
auto lexer =
WastLexer::CreateBufferLexer("test", text.c_str(), text.size(), &errors);
std::unique_ptr<Module> module;
Features features;
WastParseOptions options(features);
Result result = ParseWatModule(lexer.get(), &module, &errors, &options);
EXPECT_EQ(Result::Error, result);
return errors;
}
} // end of anonymous namespace
TEST(WastParser, LongToken) {
std::string text;
text = "(module (memory ";
text += repeat("a", 0x5000);
text += "))";
Errors errors = ParseInvalidModule(text);
ASSERT_EQ(1u, errors.size());
ASSERT_EQ(ErrorLevel::Error, errors[0].error_level);
ASSERT_EQ(1, errors[0].loc.line);
ASSERT_EQ(17, errors[0].loc.first_column);
ASSERT_STREQ(
R"(unexpected token "aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa...", expected a natural number (e.g. 123).)",
errors[0].message.c_str());
}
TEST(WastParser, LongTokenSpace) {
std::string text;
text = "notparen";
text += repeat(" ", 0x10000);
text += "notmodule";
Errors errors = ParseInvalidModule(text);
ASSERT_EQ(2u, errors.size());
ASSERT_EQ(ErrorLevel::Error, errors[0].error_level);
ASSERT_EQ(1, errors[0].loc.line);
ASSERT_EQ(1, errors[0].loc.first_column);
ASSERT_STREQ(
R"(unexpected token "notparen", expected a module field or a module.)",
errors[0].message.c_str());
ASSERT_EQ(1, errors[1].loc.line);
ASSERT_EQ(65545, errors[1].loc.first_column);
ASSERT_STREQ(R"(unexpected token notmodule, expected EOF.)",
errors[1].message.c_str());
}