chore: selenium sample (GoogleCloudPlatform#130)

samples/generic-selenium-nodejs/index.js

@@ -0,0 +1,66 @@
+// Copyright 2023 Google LLC
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+// [START monitoring_synthetic_monitoring_custom_selenium_script]
+const {
+  instantiateAutoInstrumentation,
+  runSyntheticHandler,
+} = require('@google-cloud/synthetics-sdk-api');
+// Run instantiateAutoInstrumentation before any other code runs, to get automatic logs and traces
+instantiateAutoInstrumentation();
+const functions = require('@google-cloud/functions-framework');
+const assert = require('node:assert');
+
+const { Builder, Browser, By } = require('selenium-webdriver');
+const chrome = require('selenium-webdriver/chrome');
+
+/*
+ * This function executes the synthetic code for testing purposes.
+ * If the code runs without errors, the synthetic test is considered successful.
+ * If an error is thrown during execution, the synthetic test is considered failed.
+ */
+functions.http(
+  'CustomSeleniumSynthetic',
+  runSyntheticHandler(async ({ logger, executionId }) => {
+    /*
+     * Construct chrome options
+     * Note: `setChromeBinaryPath` must be set to '/srv/bin/chromium' when running in
+     *   GCF (but will need to be changed if running on local machine).
+     */
+    const options = new chrome.Options();
+    options.setChromeBinaryPath('/srv/bin/chromium');
+    options.addArguments('--headless', '--disable-gpu', '--no-sandbox');
+
+    // Launch headless chrome webdriver with options
+    const driver = await new Builder()
+      .forBrowser(Browser.CHROME)
+      .setChromeOptions(options)
+      .build();
+
+    // Navigate to the target URL
+    await driver.get('https://example.com');
+
+    // Retrieve title and `a` tag of page
+    const title = await driver.getTitle();
+    const aTag = await driver.findElement(By.css('a')).getText();
+
+    // assert title is as expected and print to console
+    await assert.equal(title, 'Example Domain');
+    logger.info(`My URL title is: ${title} ` + executionId);
+
+    await driver.quit();
+  })
+);
+
+// [END monitoring_synthetic_monitoring_custom_selenium_script]

samples/generic-selenium-nodejs/package.json

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+{
+    "name": "generic-selenium-nodejs",
+    "version": "1.0.0",
+    "description": "",
+    "main": "index.js",
+    "dependencies": {
+        "@google-cloud/functions-framework": "^3.1.2",
+        "@google-cloud/synthetics-sdk-api": "^0.6.0",
+        "selenium-webdriver": "^4.20.0"
+    },
+    "license": "Apache-2.0",
+    "author": "Google Inc."
+}