sandboxed-api/oss-internship-2020/libuv/tests/test_error.cc

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// Copyright 2020 Google LLC
//
// 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
//
// https://www.apache.org/licenses/LICENSE-2.0
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//
// 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 <linux/futex.h>
#include <uv.h>
#include "gtest/gtest.h"
#include "absl/flags/flag.h"
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#include "sandboxed_api/util/status_matchers.h"
#include "uv_sapi.sapi.h" // NOLINT(build/include)
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namespace {
class UVTestErrorSapiSandbox : public uv::UVSandbox {
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private:
std::unique_ptr<sandbox2::Policy> ModifyPolicy(
sandbox2::PolicyBuilder*) override {
return sandbox2::PolicyBuilder()
.AllowDynamicStartup()
.AllowExit()
.AllowFutexOp(FUTEX_WAKE_PRIVATE)
.AllowWrite()
.BuildOrDie();
}
};
class UVTestError : public ::testing::Test {
protected:
void SetUp() override {
sandbox_ = std::make_unique<UVTestErrorSapiSandbox>();
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ASSERT_THAT(sandbox_->Init(), sapi::IsOk());
api_ = std::make_unique<uv::UVApi>(sandbox_.get());
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}
// Check sapi_uv_strerror on error
void UVStrerror(int error) {
// Call sapi_uv_strerror
absl::StatusOr<void*> error_message_ptr = api_->sapi_uv_strerror(error);
ASSERT_THAT(error_message_ptr, sapi::IsOk());
// Get error message from the sandboxee
SAPI_ASSERT_OK_AND_ASSIGN(
std::string error_message,
sandbox_->GetCString(sapi::v::RemotePtr{error_message_ptr.value()}));
// Check that it is equal to expected error message
ASSERT_EQ(error_message, std::string{uv_strerror(error)});
}
// Check sapi_uv_translate_sys_error on error
void UVTranslateSysError(int error) {
// Call sapi_uv_translate_sys_error and get error code
SAPI_ASSERT_OK_AND_ASSIGN(int error_code,
api_->sapi_uv_translate_sys_error(error));
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// Check that it is equal to expected error code
ASSERT_EQ(error_code, uv_translate_sys_error(error));
}
std::unique_ptr<UVTestErrorSapiSandbox> sandbox_;
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std::unique_ptr<uv::UVApi> api_;
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};
TEST_F(UVTestError, ErrorMessage) {
// Test sapi_uv_strerror method
UVStrerror(0);
UVStrerror(UV_EINVAL);
UVStrerror(1337);
UVStrerror(-1337);
}
TEST_F(UVTestError, SystemError) {
// Test sapi_uv_translate_sys_error method
UVTranslateSysError(EPERM);
UVTranslateSysError(EPIPE);
UVTranslateSysError(EINVAL);
UVTranslateSysError(UV_EINVAL);
UVTranslateSysError(UV_ERANGE);
UVTranslateSysError(UV_EACCES);
UVTranslateSysError(0);
}
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} // namespace