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https://github.com/puppeteer/puppeteer
synced 2024-06-14 14:02:48 +00:00
Introduce DEBUG module
This patch re-introduces the DEBUG module to expose some of the puppeteer's internals. Currently, only the protocol message communication is exposed under the 'puppeteer:protocol' namespace.
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@ -40,7 +40,7 @@ are used to test `phantom_shim`.
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To run puppeteer tests, use:
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```
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npm run test-puppeteer
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npm run unit
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```
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To run phantom-shim against phantomjs tests, use:
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@ -53,3 +53,15 @@ To run both puppeteer and phantom_shim tests, use:
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npm test
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```
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## DEBUG module
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Puppeteer uses [debug](https://github.com/visionmedia/debug) module to expose some of it's inner guts under the `puppeteer` namespace.
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Try putting the following script in the `script.js` and running it via `DEBUG=* node script.js`:
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```js
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const {Browser} = require('puppeteer');
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const browser = new Browser();
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browser.newPage().then(async page => {
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await page.navigate('https://example.com');
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browser.close();
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});
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```
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@ -13,6 +13,7 @@
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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let debug = require('debug')('puppeteer:protocol');
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let EventEmitter = require('events');
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let WebSocket = require('ws');
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@ -46,6 +47,7 @@ class Connection extends EventEmitter {
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send(method, params = {}) {
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let id = ++this._lastId;
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let message = JSON.stringify({id, method, params});
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debug('◀ SEND ' + message);
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this._ws.send(message);
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return new Promise((resolve, reject) => {
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this._callbacks.set(id, {resolve, reject, method});
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@ -56,6 +58,7 @@ class Connection extends EventEmitter {
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* @param {string} message
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*/
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_onMessage(message) {
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debug('RECV ► ' + message);
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let object = JSON.parse(message);
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if (object.id && this._callbacks.has(object.id)) {
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let callback = this._callbacks.get(object.id);
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29
package-lock.json
generated
29
package-lock.json
generated
@ -247,11 +247,11 @@
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}
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},
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"debug": {
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"version": "2.2.0",
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"resolved": "https://registry.npmjs.org/debug/-/debug-2.2.0.tgz",
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"integrity": "sha1-+HBX6ZWxofauaklgZkE3vFbwOdo=",
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"version": "2.6.8",
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"resolved": "https://registry.npmjs.org/debug/-/debug-2.6.8.tgz",
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"integrity": "sha1-5zFTHKLt4n0YgiJCfaF4IdaP9Pw=",
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"requires": {
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"ms": "0.7.1"
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"ms": "2.0.0"
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}
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},
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"deep-is": {
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@ -477,6 +477,21 @@
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"debug": "2.2.0",
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"mkdirp": "0.5.0",
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"yauzl": "2.4.1"
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},
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"dependencies": {
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"debug": {
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"version": "2.2.0",
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"resolved": "https://registry.npmjs.org/debug/-/debug-2.2.0.tgz",
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"integrity": "sha1-+HBX6ZWxofauaklgZkE3vFbwOdo=",
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"requires": {
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"ms": "0.7.1"
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}
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},
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"ms": {
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"version": "0.7.1",
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"resolved": "https://registry.npmjs.org/ms/-/ms-0.7.1.tgz",
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"integrity": "sha1-nNE8A62/8ltl7/3nzoZO6VIBcJg="
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}
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}
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},
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"fast-levenshtein": {
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@ -973,9 +988,9 @@
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}
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},
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"ms": {
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"version": "0.7.1",
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"resolved": "https://registry.npmjs.org/ms/-/ms-0.7.1.tgz",
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"integrity": "sha1-nNE8A62/8ltl7/3nzoZO6VIBcJg="
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"version": "2.0.0",
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"resolved": "https://registry.npmjs.org/ms/-/ms-2.0.0.tgz",
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"integrity": "sha1-VgiurfwAvmwpAd9fmGF4jeDVl8g="
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},
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"mute-stream": {
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"version": "0.0.7",
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@ -20,6 +20,7 @@
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"author": "The Chromium Authors",
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"license": "SEE LICENSE IN LICENSE",
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"dependencies": {
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"debug": "^2.6.8",
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"extract-zip": "^1.6.5",
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"mime": "^1.3.4",
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"progress": "^2.0.0",
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