50 lines
1.3 KiB
JavaScript
50 lines
1.3 KiB
JavaScript
'use strict';
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const common = require('../common');
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// Simulate `cat readfile.js | node readfile.js`
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if (common.isWindows || common.isAIX)
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common.skip(`No /dev/stdin on ${process.platform}.`);
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const assert = require('assert');
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const path = require('path');
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const fs = require('fs');
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if (process.argv[2] === 'child') {
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fs.readFile('/dev/stdin', function(er, data) {
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assert.ifError(er);
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process.stdout.write(data);
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});
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return;
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}
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const tmpdir = require('../common/tmpdir');
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const filename = path.join(tmpdir.path, '/readfile_pipe_large_test.txt');
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const dataExpected = 'a'.repeat(999999);
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tmpdir.refresh();
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fs.writeFileSync(filename, dataExpected);
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const exec = require('child_process').exec;
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const f = JSON.stringify(__filename);
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const node = JSON.stringify(process.execPath);
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const cmd = `cat ${filename} | ${node} ${f} child`;
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exec(cmd, { maxBuffer: 1000000 }, common.mustCall((err, stdout, stderr) => {
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assert.ifError(err);
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assert.strictEqual(
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stdout,
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dataExpected,
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`expect it reads the file and outputs 999999 'a' but got : ${stdout}`
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);
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assert.strictEqual(
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stderr,
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'',
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`expect that it does not write to stderr, but got : ${stderr}`
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);
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console.log('ok');
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}));
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process.on('exit', function() {
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fs.unlinkSync(filename);
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});
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