node/test/simple/test-process-kill-null.js

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var assert = require('assert');
var spawn = require('child_process').spawn;
var cat = spawn('cat');
var called;
process.kill(cat.pid, 0);
cat.stdout.on('data', function(){
called = true;
process.kill(cat.pid, 'SIGKILL');
});
// EPIPE when null sig fails
cat.stdin.write('test');
process.on('exit', function(){
assert.ok(called);
});