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| 1 | +'use strict'; |
| 2 | + |
| 3 | +// Flags: --expose-internals |
| 4 | + |
| 5 | +const common = require('../common'); |
| 6 | +const stream = require('stream'); |
| 7 | +const REPL = require('internal/repl'); |
| 8 | +const assert = require('assert'); |
| 9 | +const fs = require('fs'); |
| 10 | +const path = require('path'); |
| 11 | + |
| 12 | +const tmpdir = require('../common/tmpdir'); |
| 13 | +tmpdir.refresh(); |
| 14 | + |
| 15 | +const defaultHistoryPath = path.join(tmpdir.path, '.node_repl_history'); |
| 16 | + |
| 17 | +// Create an input stream specialized for testing an array of actions |
| 18 | +class ActionStream extends stream.Stream { |
| 19 | + run(data) { |
| 20 | + const _iter = data[Symbol.iterator](); |
| 21 | + const doAction = () => { |
| 22 | + const next = _iter.next(); |
| 23 | + if (next.done) { |
| 24 | + // Close the repl. Note that it must have a clean prompt to do so. |
| 25 | + this.emit('keypress', '', { ctrl: true, name: 'd' }); |
| 26 | + return; |
| 27 | + } |
| 28 | + const action = next.value; |
| 29 | + |
| 30 | + if (typeof action === 'object') { |
| 31 | + this.emit('keypress', '', action); |
| 32 | + } else { |
| 33 | + this.emit('data', `${action}`); |
| 34 | + } |
| 35 | + setImmediate(doAction); |
| 36 | + }; |
| 37 | + setImmediate(doAction); |
| 38 | + } |
| 39 | + resume() {} |
| 40 | + pause() {} |
| 41 | +} |
| 42 | +ActionStream.prototype.readable = true; |
| 43 | + |
| 44 | + |
| 45 | +// Mock keys |
| 46 | +const ENTER = { name: 'enter' }; |
| 47 | +const UP = { name: 'up' }; |
| 48 | +const DOWN = { name: 'down' }; |
| 49 | + |
| 50 | +const prompt = '> '; |
| 51 | + |
| 52 | +const tests = [ |
| 53 | + { // creates few history to navigate for |
| 54 | + env: { NODE_REPL_HISTORY: defaultHistoryPath }, |
| 55 | + test: [ 'let ab = 45', ENTER, |
| 56 | + '555 + 909', ENTER, |
| 57 | + '{key : {key2 :[] }}', ENTER], |
| 58 | + expected: [], |
| 59 | + clean: false |
| 60 | + }, |
| 61 | + { |
| 62 | + env: { NODE_REPL_HISTORY: defaultHistoryPath }, |
| 63 | + test: [UP, UP, UP, UP, DOWN, DOWN, DOWN], |
| 64 | + expected: [prompt, |
| 65 | + `${prompt}{key : {key2 :[] }}`, |
| 66 | + `${prompt}555 + 909`, |
| 67 | + `${prompt}let ab = 45`, |
| 68 | + `${prompt}555 + 909`, |
| 69 | + `${prompt}{key : {key2 :[] }}`, |
| 70 | + prompt], |
| 71 | + clean: true |
| 72 | + } |
| 73 | +]; |
| 74 | +const numtests = tests.length; |
| 75 | + |
| 76 | +const runTestWrap = common.mustCall(runTest, numtests); |
| 77 | + |
| 78 | +function cleanupTmpFile() { |
| 79 | + try { |
| 80 | + // Write over the file, clearing any history |
| 81 | + fs.writeFileSync(defaultHistoryPath, ''); |
| 82 | + } catch (err) { |
| 83 | + if (err.code === 'ENOENT') return true; |
| 84 | + throw err; |
| 85 | + } |
| 86 | + return true; |
| 87 | +} |
| 88 | + |
| 89 | +function runTest() { |
| 90 | + const opts = tests.shift(); |
| 91 | + if (!opts) return; // All done |
| 92 | + |
| 93 | + const env = opts.env; |
| 94 | + const test = opts.test; |
| 95 | + const expected = opts.expected; |
| 96 | + |
| 97 | + REPL.createInternalRepl(env, { |
| 98 | + input: new ActionStream(), |
| 99 | + output: new stream.Writable({ |
| 100 | + write(chunk, _, next) { |
| 101 | + const output = chunk.toString(); |
| 102 | + |
| 103 | + if (output.charCodeAt(0) === 27 || /^[\r\n]+$/.test(output)) { |
| 104 | + return next(); |
| 105 | + } |
| 106 | + |
| 107 | + if (expected.length) { |
| 108 | + assert.strictEqual(output, expected[0]); |
| 109 | + expected.shift(); |
| 110 | + } |
| 111 | + |
| 112 | + next(); |
| 113 | + } |
| 114 | + }), |
| 115 | + prompt: prompt, |
| 116 | + useColors: false, |
| 117 | + terminal: true |
| 118 | + }, function(err, repl) { |
| 119 | + if (err) { |
| 120 | + console.error(`Failed test # ${numtests - tests.length}`); |
| 121 | + throw err; |
| 122 | + } |
| 123 | + |
| 124 | + repl.once('close', () => { |
| 125 | + if (opts.clean) |
| 126 | + cleanupTmpFile(); |
| 127 | + |
| 128 | + if (expected.length !== 0) { |
| 129 | + throw new Error(`Failed test # ${numtests - tests.length}`); |
| 130 | + } |
| 131 | + setImmediate(runTestWrap, true); |
| 132 | + }); |
| 133 | + |
| 134 | + repl.inputStream.run(test); |
| 135 | + }); |
| 136 | +} |
| 137 | + |
| 138 | +// run the tests |
| 139 | +runTest(); |
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