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test: fix flaky test-vm-sigint-existing-handler #7982

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test: fix flaky test-vm-sigint-existing-handler #7982

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f0bf2c2
test: fix flaky test-vm-sigint-existing-handler
addaleax Aug 4, 2016
77ce9d2
Add code comments explaining the order of spawn()/process.on()
addaleax Aug 4, 2016
055196e
fix nit removing whitespace inside of [ … ]
addaleax Aug 7, 2016
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9 changes: 6 additions & 3 deletions test/parallel/test-vm-sigint-existing-handler.js
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Original file line number Diff line number Diff line change
Expand Up @@ -61,16 +61,19 @@ if (process.argv[2] === 'child') {
}

process.env.REPL_TEST_PPID = process.pid;
const child = spawn(process.execPath, [ __filename, 'child' ], {
stdio: [null, 'inherit', 'inherit']
});

// Set the `SIGUSR2` handler before spawning the child process to make sure
// the signal is always handled.
process.on('SIGUSR2', common.mustCall(() => {
// First kill() breaks the while(true) loop, second one invokes the real
// signal handlers.
process.kill(child.pid, 'SIGINT');
}, 3));

const child = spawn(process.execPath, [__filename, 'child'], {
stdio: [null, 'inherit', 'inherit']
});

child.on('close', function(code, signal) {
assert.strictEqual(signal, null);
assert.strictEqual(code, 0);
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5 changes: 4 additions & 1 deletion test/parallel/test-vm-sigint.js
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Original file line number Diff line number Diff line change
Expand Up @@ -25,11 +25,14 @@ if (process.argv[2] === 'child') {
}

process.env.REPL_TEST_PPID = process.pid;

// Set the `SIGUSR2` handler before spawning the child process to make sure
// the signal is always handled.
process.on('SIGUSR2', common.mustCall(() => {
process.kill(child.pid, 'SIGINT');
}));

const child = spawn(process.execPath, [ __filename, 'child' ], {
const child = spawn(process.execPath, [__filename, 'child'], {
stdio: [null, 'pipe', 'inherit']
});

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