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Unified Diff: tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/node_modules/readable-stream/test/simple/test-stream2-transform.js

Issue 125733002: Add vulcanize to tools. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: Created 6 years, 11 months ago
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Index: tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/node_modules/readable-stream/test/simple/test-stream2-transform.js
diff --git a/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/node_modules/readable-stream/test/simple/test-stream2-transform.js b/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/node_modules/readable-stream/test/simple/test-stream2-transform.js
new file mode 100644
index 0000000000000000000000000000000000000000..5804c39d80975ca610a019bec1bcc396b20a3888
--- /dev/null
+++ b/tools/vulcanize/node_modules/vulcanize/node_modules/cheerio/node_modules/htmlparser2/node_modules/readable-stream/test/simple/test-stream2-transform.js
@@ -0,0 +1,435 @@
+// 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.
+
+var assert = require('assert');
+var common = require('../common.js');
+var PassThrough = require('../../lib/_stream_passthrough');
+var Transform = require('../../lib/_stream_transform');
+
+// tiny node-tap lookalike.
+var tests = [];
+var count = 0;
+
+function test(name, fn) {
+ count++;
+ tests.push([name, fn]);
+}
+
+function run() {
+ var next = tests.shift();
+ if (!next)
+ return console.error('ok');
+
+ var name = next[0];
+ var fn = next[1];
+ console.log('# %s', name);
+ fn({
+ same: assert.deepEqual,
+ equal: assert.equal,
+ ok: assert,
+ end: function () {
+ count--;
+ run();
+ }
+ });
+}
+
+// ensure all tests have run
+process.on("exit", function () {
+ assert.equal(count, 0);
+});
+
+process.nextTick(run);
+
+/////
+
+test('writable side consumption', function(t) {
+ var tx = new Transform({
+ highWaterMark: 10
+ });
+
+ var transformed = 0;
+ tx._transform = function(chunk, encoding, cb) {
+ transformed += chunk.length;
+ tx.push(chunk);
+ cb();
+ };
+
+ for (var i = 1; i <= 10; i++) {
+ tx.write(new Buffer(i));
+ }
+ tx.end();
+
+ t.equal(tx._readableState.length, 10);
+ t.equal(transformed, 10);
+ t.equal(tx._transformState.writechunk.length, 5);
+ t.same(tx._writableState.buffer.map(function(c) {
+ return c.chunk.length;
+ }), [6, 7, 8, 9, 10]);
+
+ t.end();
+});
+
+test('passthrough', function(t) {
+ var pt = new PassThrough();
+
+ pt.write(new Buffer('foog'));
+ pt.write(new Buffer('bark'));
+ pt.write(new Buffer('bazy'));
+ pt.write(new Buffer('kuel'));
+ pt.end();
+
+ t.equal(pt.read(5).toString(), 'foogb');
+ t.equal(pt.read(5).toString(), 'arkba');
+ t.equal(pt.read(5).toString(), 'zykue');
+ t.equal(pt.read(5).toString(), 'l');
+ t.end();
+});
+
+test('simple transform', function(t) {
+ var pt = new Transform;
+ pt._transform = function(c, e, cb) {
+ var ret = new Buffer(c.length);
+ ret.fill('x');
+ pt.push(ret);
+ cb();
+ };
+
+ pt.write(new Buffer('foog'));
+ pt.write(new Buffer('bark'));
+ pt.write(new Buffer('bazy'));
+ pt.write(new Buffer('kuel'));
+ pt.end();
+
+ t.equal(pt.read(5).toString(), 'xxxxx');
+ t.equal(pt.read(5).toString(), 'xxxxx');
+ t.equal(pt.read(5).toString(), 'xxxxx');
+ t.equal(pt.read(5).toString(), 'x');
+ t.end();
+});
+
+test('async passthrough', function(t) {
+ var pt = new Transform;
+ pt._transform = function(chunk, encoding, cb) {
+ setTimeout(function() {
+ pt.push(chunk);
+ cb();
+ }, 10);
+ };
+
+ pt.write(new Buffer('foog'));
+ pt.write(new Buffer('bark'));
+ pt.write(new Buffer('bazy'));
+ pt.write(new Buffer('kuel'));
+ pt.end();
+
+ pt.on('finish', function() {
+ t.equal(pt.read(5).toString(), 'foogb');
+ t.equal(pt.read(5).toString(), 'arkba');
+ t.equal(pt.read(5).toString(), 'zykue');
+ t.equal(pt.read(5).toString(), 'l');
+ t.end();
+ });
+});
+
+test('assymetric transform (expand)', function(t) {
+ var pt = new Transform;
+
+ // emit each chunk 2 times.
+ pt._transform = function(chunk, encoding, cb) {
+ setTimeout(function() {
+ pt.push(chunk);
+ setTimeout(function() {
+ pt.push(chunk);
+ cb();
+ }, 10)
+ }, 10);
+ };
+
+ pt.write(new Buffer('foog'));
+ pt.write(new Buffer('bark'));
+ pt.write(new Buffer('bazy'));
+ pt.write(new Buffer('kuel'));
+ pt.end();
+
+ pt.on('finish', function() {
+ t.equal(pt.read(5).toString(), 'foogf');
+ t.equal(pt.read(5).toString(), 'oogba');
+ t.equal(pt.read(5).toString(), 'rkbar');
+ t.equal(pt.read(5).toString(), 'kbazy');
+ t.equal(pt.read(5).toString(), 'bazyk');
+ t.equal(pt.read(5).toString(), 'uelku');
+ t.equal(pt.read(5).toString(), 'el');
+ t.end();
+ });
+});
+
+test('assymetric transform (compress)', function(t) {
+ var pt = new Transform;
+
+ // each output is the first char of 3 consecutive chunks,
+ // or whatever's left.
+ pt.state = '';
+
+ pt._transform = function(chunk, encoding, cb) {
+ if (!chunk)
+ chunk = '';
+ var s = chunk.toString();
+ setTimeout(function() {
+ this.state += s.charAt(0);
+ if (this.state.length === 3) {
+ pt.push(new Buffer(this.state));
+ this.state = '';
+ }
+ cb();
+ }.bind(this), 10);
+ };
+
+ pt._flush = function(cb) {
+ // just output whatever we have.
+ pt.push(new Buffer(this.state));
+ this.state = '';
+ cb();
+ };
+
+ pt.write(new Buffer('aaaa'));
+ pt.write(new Buffer('bbbb'));
+ pt.write(new Buffer('cccc'));
+ pt.write(new Buffer('dddd'));
+ pt.write(new Buffer('eeee'));
+ pt.write(new Buffer('aaaa'));
+ pt.write(new Buffer('bbbb'));
+ pt.write(new Buffer('cccc'));
+ pt.write(new Buffer('dddd'));
+ pt.write(new Buffer('eeee'));
+ pt.write(new Buffer('aaaa'));
+ pt.write(new Buffer('bbbb'));
+ pt.write(new Buffer('cccc'));
+ pt.write(new Buffer('dddd'));
+ pt.end();
+
+ // 'abcdeabcdeabcd'
+ pt.on('finish', function() {
+ t.equal(pt.read(5).toString(), 'abcde');
+ t.equal(pt.read(5).toString(), 'abcde');
+ t.equal(pt.read(5).toString(), 'abcd');
+ t.end();
+ });
+});
+
+
+test('passthrough event emission', function(t) {
+ var pt = new PassThrough();
+ var emits = 0;
+ pt.on('readable', function() {
+ var state = pt._readableState;
+ console.error('>>> emit readable %d', emits);
+ emits++;
+ });
+
+ var i = 0;
+
+ pt.write(new Buffer('foog'));
+
+ console.error('need emit 0');
+ pt.write(new Buffer('bark'));
+
+ console.error('should have emitted readable now 1 === %d', emits);
+ t.equal(emits, 1);
+
+ t.equal(pt.read(5).toString(), 'foogb');
+ t.equal(pt.read(5) + '', 'null');
+
+ console.error('need emit 1');
+
+ pt.write(new Buffer('bazy'));
+ console.error('should have emitted, but not again');
+ pt.write(new Buffer('kuel'));
+
+ console.error('should have emitted readable now 2 === %d', emits);
+ t.equal(emits, 2);
+
+ t.equal(pt.read(5).toString(), 'arkba');
+ t.equal(pt.read(5).toString(), 'zykue');
+ t.equal(pt.read(5), null);
+
+ console.error('need emit 2');
+
+ pt.end();
+
+ t.equal(emits, 3);
+
+ t.equal(pt.read(5).toString(), 'l');
+ t.equal(pt.read(5), null);
+
+ console.error('should not have emitted again');
+ t.equal(emits, 3);
+ t.end();
+});
+
+test('passthrough event emission reordered', function(t) {
+ var pt = new PassThrough;
+ var emits = 0;
+ pt.on('readable', function() {
+ console.error('emit readable', emits)
+ emits++;
+ });
+
+ pt.write(new Buffer('foog'));
+ console.error('need emit 0');
+ pt.write(new Buffer('bark'));
+ console.error('should have emitted readable now 1 === %d', emits);
+ t.equal(emits, 1);
+
+ t.equal(pt.read(5).toString(), 'foogb');
+ t.equal(pt.read(5), null);
+
+ console.error('need emit 1');
+ pt.once('readable', function() {
+ t.equal(pt.read(5).toString(), 'arkba');
+
+ t.equal(pt.read(5), null);
+
+ console.error('need emit 2');
+ pt.once('readable', function() {
+ t.equal(pt.read(5).toString(), 'zykue');
+ t.equal(pt.read(5), null);
+ pt.once('readable', function() {
+ t.equal(pt.read(5).toString(), 'l');
+ t.equal(pt.read(5), null);
+ t.equal(emits, 4);
+ t.end();
+ });
+ pt.end();
+ });
+ pt.write(new Buffer('kuel'));
+ });
+
+ pt.write(new Buffer('bazy'));
+});
+
+test('passthrough facaded', function(t) {
+ console.error('passthrough facaded');
+ var pt = new PassThrough;
+ var datas = [];
+ pt.on('data', function(chunk) {
+ datas.push(chunk.toString());
+ });
+
+ pt.on('end', function() {
+ t.same(datas, ['foog', 'bark', 'bazy', 'kuel']);
+ t.end();
+ });
+
+ pt.write(new Buffer('foog'));
+ setTimeout(function() {
+ pt.write(new Buffer('bark'));
+ setTimeout(function() {
+ pt.write(new Buffer('bazy'));
+ setTimeout(function() {
+ pt.write(new Buffer('kuel'));
+ setTimeout(function() {
+ pt.end();
+ }, 10);
+ }, 10);
+ }, 10);
+ }, 10);
+});
+
+test('object transform (json parse)', function(t) {
+ console.error('json parse stream');
+ var jp = new Transform({ objectMode: true });
+ jp._transform = function(data, encoding, cb) {
+ try {
+ jp.push(JSON.parse(data));
+ cb();
+ } catch (er) {
+ cb(er);
+ }
+ };
+
+ // anything except null/undefined is fine.
+ // those are "magic" in the stream API, because they signal EOF.
+ var objects = [
+ { foo: 'bar' },
+ 100,
+ "string",
+ { nested: { things: [ { foo: 'bar' }, 100, "string" ] } }
+ ];
+
+ var ended = false;
+ jp.on('end', function() {
+ ended = true;
+ });
+
+ objects.forEach(function(obj) {
+ jp.write(JSON.stringify(obj));
+ var res = jp.read();
+ t.same(res, obj);
+ });
+
+ jp.end();
+
+ process.nextTick(function() {
+ t.ok(ended);
+ t.end();
+ })
+});
+
+test('object transform (json stringify)', function(t) {
+ console.error('json parse stream');
+ var js = new Transform({ objectMode: true });
+ js._transform = function(data, encoding, cb) {
+ try {
+ js.push(JSON.stringify(data));
+ cb();
+ } catch (er) {
+ cb(er);
+ }
+ };
+
+ // anything except null/undefined is fine.
+ // those are "magic" in the stream API, because they signal EOF.
+ var objects = [
+ { foo: 'bar' },
+ 100,
+ "string",
+ { nested: { things: [ { foo: 'bar' }, 100, "string" ] } }
+ ];
+
+ var ended = false;
+ js.on('end', function() {
+ ended = true;
+ });
+
+ objects.forEach(function(obj) {
+ js.write(obj);
+ var res = js.read();
+ t.equal(res, JSON.stringify(obj));
+ });
+
+ js.end();
+
+ process.nextTick(function() {
+ t.ok(ended);
+ t.end();
+ })
+});

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