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test: redirect stderr EnvironmentWithNoESMLoader #36548

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Merged
merged 1 commit into from
Dec 24, 2020
Merged

test: redirect stderr EnvironmentWithNoESMLoader #36548

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29 changes: 29 additions & 0 deletions test/cctest/test_environment.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,8 @@
#include <string>
#include "gtest/gtest.h"
#include "node_test_fixture.h"
#include <stdio.h>
#include <cstdio>

using node::AtExit;
using node::RunAtExit;
Expand Down Expand Up @@ -66,7 +68,34 @@ TEST_F(EnvironmentTest, EnvironmentWithESMLoader) {
"})()");
}

class RedirectStdErr {
public:
explicit RedirectStdErr(const char* filename) : filename_(filename) {
fflush(stderr);
fgetpos(stderr, &pos_);
fd_ = dup(fileno(stderr));
freopen(filename_, "w", stderr);
}

~RedirectStdErr() {
fflush(stderr);
dup2(fd_, fileno(stderr));
close(fd_);
remove(filename_);
clearerr(stderr);
fsetpos(stderr, &pos_);
}

private:
int fd_;
fpos_t pos_;
const char* filename_;
};

TEST_F(EnvironmentTest, EnvironmentWithNoESMLoader) {
// The following line will cause stderr to get redirected to avoid the
// error that would otherwise be printed to the console by this test.
RedirectStdErr redirect_scope("environment_test.log");
const v8::HandleScope handle_scope(isolate_);
Argv argv;
Env env {handle_scope, argv, node::EnvironmentFlags::kNoRegisterESMLoader};
Expand Down