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// Copyright Joyent, Inc. and other Node contributors.
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to permit
// persons to whom the Software is furnished to do so, subject to the
// following conditions:
//
// The above copyright notice and this permission notice shall be included
// in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
// USE OR OTHER DEALINGS IN THE SOFTWARE.
'use strict';
const common = require('../common');
const ArrayStream = require('../common/arraystream');
const {
hijackStderr,
restoreStderr
} = require('../common/hijackstdio');
const assert = require('assert');
const path = require('path');
const fixtures = require('../common/fixtures');
const hasInspector = process.features.inspector;
if (!common.isMainThread)
common.skip('process.chdir is not available in Workers');
// We have to change the directory to ../fixtures before requiring repl
// in order to make the tests for completion of node_modules work properly
// since repl modifies module.paths.
process.chdir(fixtures.fixturesDir);
const repl = require('repl');
function getNoResultsFunction() {
return common.mustCall((err, data) => {
assert.ifError(err);
assert.deepStrictEqual(data[0], []);
});
}
const works = [['inner.one'], 'inner.o'];
const putIn = new ArrayStream();
const testMe = repl.start('', putIn);
// Some errors are passed to the domain, but do not callback
testMe._domain.on('error', function(err) {
assert.ifError(err);
});
// Tab Complete will not break in an object literal
putIn.run(['.clear']);
putIn.run([
'var inner = {',
'one:1'
]);
testMe.complete('inner.o', getNoResultsFunction());
testMe.complete('console.lo', common.mustCall(function(error, data) {
assert.deepStrictEqual(data, [['console.log'], 'console.lo']);
}));
// Tab Complete will return globally scoped variables
putIn.run(['};']);
testMe.complete('inner.o', common.mustCall(function(error, data) {
assert.deepStrictEqual(data, works);
}));
putIn.run(['.clear']);
// Tab Complete will not break in an ternary operator with ()
putIn.run([
'var inner = ( true ',
'?',
'{one: 1} : '
]);
testMe.complete('inner.o', getNoResultsFunction());
putIn.run(['.clear']);
// Tab Complete will return a simple local variable
putIn.run([
'var top = function() {',
'var inner = {one:1};'
]);
testMe.complete('inner.o', common.mustCall(function(error, data) {
assert.deepStrictEqual(data, works);
}));
// When you close the function scope tab complete will not return the
// locally scoped variable
putIn.run(['};']);
testMe.complete('inner.o', getNoResultsFunction());
putIn.run(['.clear']);
// Tab Complete will return a complex local variable
putIn.run([
'var top = function() {',
'var inner = {',
' one:1',
'};'
]);
testMe.complete('inner.o', common.mustCall(function(error, data) {
assert.deepStrictEqual(data, works);
}));
putIn.run(['.clear']);
// Tab Complete will return a complex local variable even if the function
// has parameters
putIn.run([
'var top = function(one, two) {',
'var inner = {',
' one:1',
'};'
]);
testMe.complete('inner.o', common.mustCall(function(error, data) {
assert.deepStrictEqual(data, works);
}));
putIn.run(['.clear']);
// Tab Complete will return a complex local variable even if the
// scope is nested inside an immediately executed function
putIn.run([
'var top = function() {',
'(function test () {',
'var inner = {',
' one:1',
'};'
]);
testMe.complete('inner.o', common.mustCall(function(error, data) {
assert.deepStrictEqual(data, works);
}));
putIn.run(['.clear']);
// The definition has the params and { on a separate line.
putIn.run([
'var top = function() {',
'r = function test (',
' one, two) {',
'var inner = {',
' one:1',
'};'
]);
testMe.complete('inner.o', common.mustCall(function(error, data) {
assert.deepStrictEqual(data, works);
}));
putIn.run(['.clear']);
// Currently does not work, but should not break, not the {
putIn.run([
'var top = function() {',
'r = function test ()',
'{',
'var inner = {',
' one:1',
'};'
]);
testMe.complete('inner.o', getNoResultsFunction());
putIn.run(['.clear']);
// Currently does not work, but should not break
putIn.run([
'var top = function() {',
'r = function test (',
')',
'{',
'var inner = {',
' one:1',
'};'
]);
testMe.complete('inner.o', getNoResultsFunction());
putIn.run(['.clear']);
// Make sure tab completion works on non-Objects
putIn.run([
'var str = "test";'
]);
testMe.complete('str.len', common.mustCall(function(error, data) {
assert.deepStrictEqual(data, [['str.length'], 'str.len']);
}));
putIn.run(['.clear']);
// Tab completion should not break on spaces
const spaceTimeout = setTimeout(function() {
throw new Error('timeout');
}, 1000);
testMe.complete(' ', common.mustCall(function(error, data) {
assert.deepStrictEqual(data, [[], undefined]);
clearTimeout(spaceTimeout);
}));
// Tab completion should pick up the global "toString" object, and
// any other properties up the "global" object's prototype chain
testMe.complete('toSt', common.mustCall(function(error, data) {
assert.deepStrictEqual(data, [['toString'], 'toSt']);
}));
// Own properties should shadow properties on the prototype
putIn.run(['.clear']);
putIn.run([
'var x = Object.create(null);',
'x.a = 1;',
'x.b = 2;',
'var y = Object.create(x);',
'y.a = 3;',
'y.c = 4;'
]);
testMe.complete('y.', common.mustCall(function(error, data) {
assert.deepStrictEqual(data, [['y.b', '', 'y.a', 'y.c'], 'y.']);
}));
// Tab complete provides built in libs for require()
putIn.run(['.clear']);
testMe.complete('require(\'', common.mustCall(function(error, data) {
assert.strictEqual(error, null);
repl._builtinLibs.forEach(function(lib) {
assert(data[0].includes(lib), `${lib} not found`);
});
}));
testMe.complete('require(\'n', common.mustCall(function(error, data) {
assert.strictEqual(error, null);
assert.strictEqual(data.length, 2);
assert.strictEqual(data[1], 'n');
assert(data[0].includes('net'));
// It's possible to pick up non-core modules too
data[0].forEach(function(completion) {
if (completion)
assert(/^n/.test(completion));
});
}));
{
const expected = ['@nodejsscope', '@nodejsscope/'];
putIn.run(['.clear']);
testMe.complete('require(\'@nodejs', common.mustCall((err, data) => {
assert.strictEqual(err, null);
assert.deepStrictEqual(data, [expected, '@nodejs']);
}));
}
// Test tab completion for require() relative to the current directory
{
putIn.run(['.clear']);
const cwd = process.cwd();
process.chdir(__dirname);
['require(\'.', 'require(".'].forEach((input) => {
testMe.complete(input, common.mustCall((err, data) => {
assert.strictEqual(err, null);
assert.strictEqual(data.length, 2);
assert.strictEqual(data[1], '.');
assert.strictEqual(data[0].length, 2);
assert.ok(data[0].includes('./'));
assert.ok(data[0].includes('../'));
}));
});
['require(\'..', 'require("..'].forEach((input) => {
testMe.complete(input, common.mustCall((err, data) => {
assert.strictEqual(err, null);
assert.deepStrictEqual(data, [['../'], '..']);
}));
});
['./', './test-'].forEach((path) => {
[`require('${path}`, `require("${path}`].forEach((input) => {
testMe.complete(input, common.mustCall((err, data) => {
assert.strictEqual(err, null);
assert.strictEqual(data.length, 2);
assert.strictEqual(data[1], path);
assert.ok(data[0].includes('./test-repl-tab-complete'));
}));
});
});
['../parallel/', '../parallel/test-'].forEach((path) => {
[`require('${path}`, `require("${path}`].forEach((input) => {
testMe.complete(input, common.mustCall((err, data) => {
assert.strictEqual(err, null);
assert.strictEqual(data.length, 2);
assert.strictEqual(data[1], path);
assert.ok(data[0].includes('../parallel/test-repl-tab-complete'));
}));
});
});
{
const path = '../fixtures/repl-folder-extensions/f';
testMe.complete(`require('${path}`, common.mustCall((err, data) => {
assert.ifError(err);
assert.strictEqual(data.length, 2);
assert.strictEqual(data[1], path);
assert.ok(data[0].includes('../fixtures/repl-folder-extensions/foo.js'));
}));
}
process.chdir(cwd);
}
// Make sure tab completion works on context properties
putIn.run(['.clear']);
putIn.run([
'var custom = "test";'
]);
testMe.complete('cus', common.mustCall(function(error, data) {
assert.deepStrictEqual(data, [['custom'], 'cus']);
}));
// Make sure tab completion doesn't crash REPL with half-baked proxy objects.
// See: https://github.com/nodejs/node/issues/2119
putIn.run(['.clear']);
putIn.run([
'var proxy = new Proxy({}, {ownKeys: () => { throw new Error(); }});'
]);
testMe.complete('proxy.', common.mustCall(function(error, data) {
assert.strictEqual(error, null);
assert(Array.isArray(data));
}));
// Make sure tab completion does not include integer members of an Array
putIn.run(['.clear']);
putIn.run(['var ary = [1,2,3];']);
testMe.complete('ary.', common.mustCall(function(error, data) {
assert.strictEqual(data[0].includes('ary.0'), false);
assert.strictEqual(data[0].includes('ary.1'), false);
assert.strictEqual(data[0].includes('ary.2'), false);
}));
// Make sure tab completion does not include integer keys in an object
putIn.run(['.clear']);
putIn.run(['var obj = {1:"a","1a":"b",a:"b"};']);
testMe.complete('obj.', common.mustCall(function(error, data) {
assert.strictEqual(data[0].includes('obj.1'), false);
assert.strictEqual(data[0].includes('obj.1a'), false);
assert(data[0].includes('obj.a'));
}));
// Don't try to complete results of non-simple expressions
putIn.run(['.clear']);
putIn.run(['function a() {}']);
testMe.complete('a().b.', getNoResultsFunction());
// Works when prefixed with spaces
putIn.run(['.clear']);
putIn.run(['var obj = {1:"a","1a":"b",a:"b"};']);
testMe.complete(' obj.', common.mustCall((error, data) => {
assert.strictEqual(data[0].includes('obj.1'), false);
assert.strictEqual(data[0].includes('obj.1a'), false);
assert(data[0].includes('obj.a'));
}));
// Works inside assignments
putIn.run(['.clear']);
testMe.complete('var log = console.lo', common.mustCall((error, data) => {
assert.deepStrictEqual(data, [['console.log'], 'console.lo']);
}));
// Tab completion for defined commands
putIn.run(['.clear']);
testMe.complete('.b', common.mustCall((error, data) => {
assert.deepStrictEqual(data, [['break'], 'b']);
}));
putIn.run(['.clear']);
putIn.run(['var obj = {"hello, world!": "some string", "key": 123}']);
testMe.complete('obj.', common.mustCall((error, data) => {
assert.strictEqual(data[0].includes('obj.hello, world!'), false);
assert(data[0].includes('obj.key'));
}));
// Tab completion for files/directories
{
putIn.run(['.clear']);
process.chdir(__dirname);
const readFileSyncs = ['fs.readFileSync("', 'fs.promises.readFileSync("'];
if (!common.isWindows) {
readFileSyncs.forEach((readFileSync) => {
const fixturePath = `${readFileSync}../fixtures/test-repl-tab-completion`;
testMe.complete(fixturePath, common.mustCall((err, data) => {
assert.strictEqual(err, null);
assert.ok(data[0][0].includes('.hiddenfiles'));
assert.ok(data[0][1].includes('hellorandom.txt'));
assert.ok(data[0][2].includes('helloworld.js'));
}));
testMe.complete(`${fixturePath}/hello`,
common.mustCall((err, data) => {
assert.strictEqual(err, null);
assert.ok(data[0][0].includes('hellorandom.txt'));
assert.ok(data[0][1].includes('helloworld.js'));
})
);
testMe.complete(`${fixturePath}/.h`,
common.mustCall((err, data) => {
assert.strictEqual(err, null);
assert.ok(data[0][0].includes('.hiddenfiles'));
})
);
testMe.complete(`${readFileSync}./xxxRandom/random`,
common.mustCall((err, data) => {
assert.strictEqual(err, null);
assert.strictEqual(data[0].length, 0);
})
);
const testPath = fixturePath.slice(0, -1);
testMe.complete(testPath, common.mustCall((err, data) => {
assert.strictEqual(err, null);
assert.ok(data[0][0].includes('test-repl-tab-completion'));
assert.strictEqual(
data[1],
path.basename(testPath)
);
}));
});
}
}
[
Array,
Buffer,
Uint8Array,
Uint16Array,
Uint32Array,
Uint8ClampedArray,
Int8Array,
Int16Array,
Int32Array,
Float32Array,
Float64Array,
].forEach((type) => {
putIn.run(['.clear']);
if (type === Array) {
putIn.run([
'var ele = [];',
'for (let i = 0; i < 1e6 + 1; i++) ele[i] = 0;',
'ele.biu = 1;'
]);
} else if (type === Buffer) {
putIn.run(['var ele = Buffer.alloc(1e6 + 1); ele.biu = 1;']);
} else {
putIn.run([`var ele = new ${type.name}(1e6 + 1); ele.biu = 1;`]);
}
hijackStderr(common.mustNotCall());
testMe.complete('ele.', common.mustCall((err, data) => {
restoreStderr();
assert.ifError(err);
const ele = (type === Array) ?
[] :
(type === Buffer ?
Buffer.alloc(0) :
new type(0));
assert.strictEqual(data[0].includes('ele.biu'), true);
data[0].forEach((key) => {
if (!key || key === 'ele.biu') return;
assert.notStrictEqual(ele[key.substr(4)], undefined);
});
}));
});
// check Buffer.prototype.length not crashing.
// Refs: https://github.com/nodejs/node/pull/11961
putIn.run['.clear'];
testMe.complete('Buffer.prototype.', common.mustCall());
const testNonGlobal = repl.start({
input: putIn,
output: putIn,
useGlobal: false
});
const builtins = [['Infinity', 'Int16Array', 'Int32Array',
'Int8Array'], 'I'];
if (common.hasIntl) {
builtins[0].push('Intl');
}
testNonGlobal.complete('I', common.mustCall((error, data) => {
assert.deepStrictEqual(data, builtins);
}));
// To test custom completer function.
// Sync mode.
const customCompletions = 'aaa aa1 aa2 bbb bb1 bb2 bb3 ccc ddd eee'.split(' ');
const testCustomCompleterSyncMode = repl.start({
prompt: '',
input: putIn,
output: putIn,
completer: function completer(line) {
const hits = customCompletions.filter((c) => c.startsWith(line));
// Show all completions if none found.
return [hits.length ? hits : customCompletions, line];
}
});
// On empty line should output all the custom completions
// without complete anything.
testCustomCompleterSyncMode.complete('', common.mustCall((error, data) => {
assert.deepStrictEqual(data, [
customCompletions,
''
]);
}));
// On `a` should output `aaa aa1 aa2` and complete until `aa`.
testCustomCompleterSyncMode.complete('a', common.mustCall((error, data) => {
assert.deepStrictEqual(data, [
'aaa aa1 aa2'.split(' '),
'a'
]);
}));
// To test custom completer function.
// Async mode.
const testCustomCompleterAsyncMode = repl.start({
prompt: '',
input: putIn,
output: putIn,
completer: function completer(line, callback) {
const hits = customCompletions.filter((c) => c.startsWith(line));
// Show all completions if none found.
callback(null, [hits.length ? hits : customCompletions, line]);
}
});
// On empty line should output all the custom completions
// without complete anything.
testCustomCompleterAsyncMode.complete('', common.mustCall((error, data) => {
assert.deepStrictEqual(data, [
customCompletions,
''
]);
}));
// On `a` should output `aaa aa1 aa2` and complete until `aa`.
testCustomCompleterAsyncMode.complete('a', common.mustCall((error, data) => {
assert.deepStrictEqual(data, [
'aaa aa1 aa2'.split(' '),
'a'
]);
}));
// Tab completion in editor mode
const editorStream = new ArrayStream();
const editor = repl.start({
stream: editorStream,
terminal: true,
useColors: false
});
editorStream.run(['.clear']);
editorStream.run(['.editor']);
editor.completer('Uin', common.mustCall((error, data) => {
assert.deepStrictEqual(data, [['Uint'], 'Uin']);
}));
editorStream.run(['.clear']);
editorStream.run(['.editor']);
editor.completer('var log = console.l', common.mustCall((error, data) => {
assert.deepStrictEqual(data, [['console.log'], 'console.l']);
}));
{
// Tab completion of lexically scoped variables
const stream = new ArrayStream();
const testRepl = repl.start({ stream });
stream.run([`
let lexicalLet = true;
const lexicalConst = true;
class lexicalKlass {}
`]);
['Let', 'Const', 'Klass'].forEach((type) => {
const query = `lexical${type[0]}`;
const expected = hasInspector ? [[`lexical${type}`], query] :
[[], `lexical${type[0]}`];
testRepl.complete(query, common.mustCall((error, data) => {
assert.deepStrictEqual(data, expected);
}));
});
}