mirror of
https://github.com/nodejs/node.git
synced 2025-05-15 08:02:06 +00:00
6bd756d7c6
PR-URL: https://github.com/nodejs/node/pull/44741 Fixes: https://github.com/nodejs/node/issues/44650 Fixes: https://github.com/nodejs/node/issues/37472 Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl> Reviewed-By: Jiawen Geng <technicalcute@gmail.com> Reviewed-By: James M Snell <jasnell@gmail.com>
44 lines
1.3 KiB
C++
44 lines
1.3 KiB
C++
// Copyright 2022 the V8 project 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 "src/wasm/string-builder.h"
|
|
|
|
#include "testing/gtest/include/gtest/gtest.h"
|
|
|
|
namespace v8::internal::wasm {
|
|
namespace string_builder_unittest {
|
|
|
|
TEST(StringBuilder, Simple) {
|
|
StringBuilder sb;
|
|
sb << "foo"
|
|
<< "bar" << -42 << "\n";
|
|
EXPECT_STREQ(std::string(sb.start(), sb.length()).c_str(), "foobar-42\n");
|
|
}
|
|
|
|
TEST(StringBuilder, DontLeak) {
|
|
// Should be bigger than StringBuilder::kStackSize = 256.
|
|
constexpr size_t kMoreThanStackBufferSize = 300;
|
|
StringBuilder sb;
|
|
const char* on_stack = sb.start();
|
|
sb.allocate(kMoreThanStackBufferSize);
|
|
const char* on_heap = sb.start();
|
|
// If this fails, then kMoreThanStackBufferSize was too small.
|
|
ASSERT_NE(on_stack, on_heap);
|
|
// Still don't leak on further growth.
|
|
sb.allocate(kMoreThanStackBufferSize * 4);
|
|
}
|
|
|
|
TEST(StringBuilder, SuperLongStrings) {
|
|
// Should be bigger than StringBuilder::kChunkSize = 1024 * 1024.
|
|
constexpr size_t kMoreThanChunkSize = 2 * 1024 * 1024;
|
|
StringBuilder sb;
|
|
char* s = sb.allocate(kMoreThanChunkSize);
|
|
for (size_t i = 0; i < kMoreThanChunkSize; i++) {
|
|
s[i] = 'a';
|
|
}
|
|
}
|
|
|
|
} // namespace string_builder_unittest
|
|
} // namespace v8::internal::wasm
|