test: refactor test-fs-read-stream-inherit
Refactor to take advantage of block scoping to isolate tests. Checks in exit handlers now reside with the relevant test block. Where test cases start and end is more clear. Also: Some use of `common.mustCall()` and improved wrapping/indentation. PR-URL: https://github.com/nodejs/node/pull/10246 Reviewed-By: Michaël Zasso <targos@protonmail.com>
This commit is contained in:
Rich Trott
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3daa4b1f76
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44e704f1f8
@ -7,174 +7,185 @@ const fs = require('fs');
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const fn = path.join(common.fixturesDir, 'elipses.txt');
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const rangeFile = path.join(common.fixturesDir, 'x.txt');
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const callbacks = { open: 0, end: 0, close: 0 };
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let paused = false;
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const file = fs.ReadStream(fn);
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{
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const file = fs.ReadStream(fn);
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file.on('open', function(fd) {
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file.length = 0;
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callbacks.open++;
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assert.strictEqual(typeof fd, 'number');
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assert.ok(file.readable);
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file.on('open', common.mustCall(function(fd) {
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file.length = 0;
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assert.strictEqual(typeof fd, 'number');
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assert.ok(file.readable);
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// GH-535
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file.pause();
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file.resume();
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file.pause();
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file.resume();
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});
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file.on('data', function(data) {
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assert.ok(data instanceof Buffer);
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assert.ok(!paused);
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file.length += data.length;
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paused = true;
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file.pause();
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setTimeout(function() {
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paused = false;
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// GH-535
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file.pause();
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file.resume();
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}, 10);
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});
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file.pause();
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file.resume();
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}));
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file.on('data', function(data) {
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assert.ok(data instanceof Buffer);
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assert.ok(!paused);
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file.length += data.length;
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paused = true;
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file.pause();
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setTimeout(function() {
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paused = false;
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file.resume();
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}, 10);
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});
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file.on('end', function(chunk) {
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callbacks.end++;
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});
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file.on('end', common.mustCall(function() {}));
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file.on('close', function() {
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callbacks.close++;
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});
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file.on('close', common.mustCall(function() {
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assert.strictEqual(file.length, 30000);
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}));
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}
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const file3 = fs.createReadStream(fn, Object.create({encoding: 'utf8'}));
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file3.length = 0;
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file3.on('data', function(data) {
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assert.strictEqual(typeof data, 'string');
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file3.length += data.length;
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{
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const file3 = fs.createReadStream(fn, Object.create({encoding: 'utf8'}));
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file3.length = 0;
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file3.on('data', function(data) {
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assert.strictEqual(typeof data, 'string');
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file3.length += data.length;
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for (let i = 0; i < data.length; i++) {
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// http://www.fileformat.info/info/unicode/char/2026/index.htm
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assert.strictEqual(data[i], '\u2026');
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}
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});
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for (let i = 0; i < data.length; i++) {
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// http://www.fileformat.info/info/unicode/char/2026/index.htm
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assert.strictEqual(data[i], '\u2026');
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}
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});
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file3.on('close', function() {
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callbacks.close++;
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});
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file3.on('close', common.mustCall(function() {
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assert.strictEqual(file3.length, 10000);
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}));
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}
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process.on('exit', function() {
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assert.strictEqual(callbacks.open, 1);
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assert.strictEqual(callbacks.end, 1);
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assert.strictEqual(callbacks.close, 2);
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assert.strictEqual(file.length, 30000);
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assert.strictEqual(file3.length, 10000);
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console.error('ok');
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});
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{
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const options = Object.create({bufferSize: 1, start: 1, end: 2});
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const file4 = fs.createReadStream(rangeFile, options);
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assert.strictEqual(file4.start, 1);
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assert.strictEqual(file4.end, 2);
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let contentRead = '';
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file4.on('data', function(data) {
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contentRead += data.toString('utf-8');
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});
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file4.on('end', common.mustCall(function() {
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assert.strictEqual(contentRead, 'yz');
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}));
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}
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const file4 = fs.createReadStream(rangeFile, Object.create({bufferSize: 1,
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start: 1, end: 2}));
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assert.strictEqual(file4.start, 1);
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assert.strictEqual(file4.end, 2);
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let contentRead = '';
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file4.on('data', function(data) {
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contentRead += data.toString('utf-8');
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});
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file4.on('end', function(data) {
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assert.strictEqual(contentRead, 'yz');
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});
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const file5 = fs.createReadStream(rangeFile, Object.create({bufferSize: 1,
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start: 1}));
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assert.strictEqual(file5.start, 1);
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file5.data = '';
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file5.on('data', function(data) {
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file5.data += data.toString('utf-8');
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});
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file5.on('end', function() {
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assert.strictEqual(file5.data, 'yz\n');
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});
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{
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const options = Object.create({bufferSize: 1, start: 1});
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const file5 = fs.createReadStream(rangeFile, options);
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assert.strictEqual(file5.start, 1);
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file5.data = '';
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file5.on('data', function(data) {
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file5.data += data.toString('utf-8');
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});
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file5.on('end', common.mustCall(function() {
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assert.strictEqual(file5.data, 'yz\n');
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}));
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}
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// https://github.com/joyent/node/issues/2320
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const file6 = fs.createReadStream(rangeFile, Object.create({bufferSize: 1.23,
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start: 1}));
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assert.strictEqual(file6.start, 1);
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file6.data = '';
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file6.on('data', function(data) {
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file6.data += data.toString('utf-8');
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});
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file6.on('end', function() {
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assert.strictEqual(file6.data, 'yz\n');
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});
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{
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const options = Object.create({bufferSize: 1.23, start: 1});
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const file6 = fs.createReadStream(rangeFile, options);
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assert.strictEqual(file6.start, 1);
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file6.data = '';
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file6.on('data', function(data) {
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file6.data += data.toString('utf-8');
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});
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file6.on('end', common.mustCall(function() {
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assert.strictEqual(file6.data, 'yz\n');
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}));
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}
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assert.throws(function() {
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fs.createReadStream(rangeFile, Object.create({start: 10, end: 2}));
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}, /"start" option must be <= "end" option/);
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{
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assert.throws(function() {
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fs.createReadStream(rangeFile, Object.create({start: 10, end: 2}));
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}, /"start" option must be <= "end" option/);
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}
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const stream = fs.createReadStream(rangeFile, Object.create({ start: 0,
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end: 0 }));
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assert.strictEqual(stream.start, 0);
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assert.strictEqual(stream.end, 0);
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stream.data = '';
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{
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const options = Object.create({start: 0, end: 0});
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const stream = fs.createReadStream(rangeFile, options);
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assert.strictEqual(stream.start, 0);
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assert.strictEqual(stream.end, 0);
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stream.data = '';
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stream.on('data', function(chunk) {
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stream.data += chunk;
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});
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stream.on('data', function(chunk) {
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stream.data += chunk;
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});
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stream.on('end', function() {
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assert.strictEqual(stream.data, 'x');
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});
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stream.on('end', common.mustCall(function() {
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assert.strictEqual(stream.data, 'x');
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}));
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}
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// pause and then resume immediately.
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const pauseRes = fs.createReadStream(rangeFile);
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pauseRes.pause();
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pauseRes.resume();
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{
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const pauseRes = fs.createReadStream(rangeFile);
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pauseRes.pause();
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pauseRes.resume();
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}
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let file7 = fs.createReadStream(rangeFile, Object.create({autoClose: false }));
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assert.strictEqual(file7.autoClose, false);
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file7.on('data', function() {});
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file7.on('end', function() {
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process.nextTick(function() {
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assert(!file7.closed);
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assert(!file7.destroyed);
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file7Next();
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});
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});
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{
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let file7 =
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fs.createReadStream(rangeFile, Object.create({autoClose: false }));
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assert.strictEqual(file7.autoClose, false);
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file7.on('data', function() {});
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file7.on('end', common.mustCall(function() {
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process.nextTick(common.mustCall(function() {
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assert(!file7.closed);
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assert(!file7.destroyed);
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file7Next();
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}));
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}));
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function file7Next() {
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// This will tell us if the fd is usable again or not.
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file7 = fs.createReadStream(null, Object.create({fd: file7.fd, start: 0 }));
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file7.data = '';
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file7.on('data', function(data) {
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file7.data += data;
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});
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file7.on('end', function(err) {
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assert.strictEqual(file7.data, 'xyz\n');
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function file7Next() {
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// This will tell us if the fd is usable again or not.
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file7 = fs.createReadStream(null, Object.create({fd: file7.fd, start: 0 }));
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file7.data = '';
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file7.on('data', function(data) {
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file7.data += data;
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});
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file7.on('end', common.mustCall(function() {
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assert.strictEqual(file7.data, 'xyz\n');
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}));
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}
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process.on('exit', function() {
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assert(file7.closed);
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assert(file7.destroyed);
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});
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}
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// Just to make sure autoClose won't close the stream because of error.
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const file8 = fs.createReadStream(null, Object.create({fd: 13337,
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autoClose: false }));
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file8.on('data', function() {});
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file8.on('error', common.mustCall(function() {}));
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{
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const options = Object.create({fd: 13337, autoClose: false});
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const file8 = fs.createReadStream(null, options);
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file8.on('data', function() {});
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file8.on('error', common.mustCall(function() {}));
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process.on('exit', function() {
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assert(!file8.closed);
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assert(!file8.destroyed);
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assert(file8.fd);
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});
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}
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// Make sure stream is destroyed when file does not exist.
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const file9 = fs.createReadStream('/path/to/file/that/does/not/exist');
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file9.on('data', function() {});
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file9.on('error', common.mustCall(function() {}));
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{
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const file9 = fs.createReadStream('/path/to/file/that/does/not/exist');
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file9.on('data', function() {});
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file9.on('error', common.mustCall(function() {}));
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process.on('exit', function() {
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assert(file7.closed);
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assert(file7.destroyed);
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assert(!file8.closed);
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assert(!file8.destroyed);
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assert(file8.fd);
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assert(!file9.closed);
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assert(file9.destroyed);
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});
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process.on('exit', function() {
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assert(!file9.closed);
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assert(file9.destroyed);
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});
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}
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