1'use strict';
2const common = require('../common');
3const stdoutData = 'foo';
4const stderrData = 'bar';
5
6if (process.argv[2] === 'child') {
7  // The following console calls are part of the test.
8  console.log(stdoutData);
9  console.error(stderrData);
10} else {
11  const assert = require('assert');
12  const cp = require('child_process');
13  const expectedStdout = `${stdoutData}\n`;
14  const expectedStderr = `${stderrData}\n`;
15  function run(options, callback) {
16    const cmd = `"${process.execPath}" "${__filename}" child`;
17
18    cp.exec(cmd, options, common.mustSucceed((stdout, stderr) => {
19      callback(stdout, stderr);
20    }));
21  }
22
23  // Test default encoding, which should be utf8.
24  run({}, (stdout, stderr) => {
25    assert.strictEqual(typeof stdout, 'string');
26    assert.strictEqual(typeof stderr, 'string');
27    assert.strictEqual(stdout, expectedStdout);
28    assert.strictEqual(stderr, expectedStderr);
29  });
30
31  // Test explicit utf8 encoding.
32  run({ encoding: 'utf8' }, (stdout, stderr) => {
33    assert.strictEqual(typeof stdout, 'string');
34    assert.strictEqual(typeof stderr, 'string');
35    assert.strictEqual(stdout, expectedStdout);
36    assert.strictEqual(stderr, expectedStderr);
37  });
38
39  // Test cases that result in buffer encodings.
40  [undefined, null, 'buffer', 'invalid'].forEach((encoding) => {
41    run({ encoding }, (stdout, stderr) => {
42      assert(stdout instanceof Buffer);
43      assert(stdout instanceof Buffer);
44      assert.strictEqual(stdout.toString(), expectedStdout);
45      assert.strictEqual(stderr.toString(), expectedStderr);
46    });
47  });
48}
49