feat: Allow port option for launching chromium browser (#3)

Author: dever23b

src/cmd/run.js

@@ -51,6 +51,7 @@ export default async function run(
     chromiumBinary,
     chromiumPref,
     chromiumProfile,
+    chromiumPort,
   },
   {
     buildExtension = defaultBuildExtension,
@@ -195,6 +196,7 @@ export default async function run(
       chromiumBinary,
       chromiumProfile,
       customChromiumPrefs,
+      chromiumPort,
       noReloadManagerExtension,
     };
 

src/extension-runners/chromium.js

@@ -209,6 +209,12 @@ export class ChromiumExtensionRunner {
       chromeFlags.push(...startingUrls);
     }
 
+    let port;
+    if (this.params.chromiumPort && !isNaN(this.params.chromiumPort)) {
+      port = this.params.chromiumPort;
+      log.debug(`(port: ${port})`);
+    }
+
     this.chromiumInstance = await this.chromiumLaunch({
       enableExtensions: true,
       chromePath: chromiumBinary,
@@ -218,6 +224,7 @@ export class ChromiumExtensionRunner {
       // Ignore default flags to keep the extension enabled.
       ignoreDefaultFlags: true,
       prefs: this.getPrefs(),
+      port,
     });
 
     this.chromiumInstance.process.once('close', () => {

tests/unit/test-extension-runners/test.chromium.js

@@ -668,6 +668,25 @@ describe('util/extension-runners/chromium', async () => {
     await runnerInstance.exit();
   });
 
+  it('does pass port to chrome', async () => {
+    const port = 31269;
+    const { params } = prepareExtensionRunnerParams({
+      params: {
+        chromiumPort: port,
+      },
+    });
+
+    const runnerInstance = new ChromiumExtensionRunner(params);
+    await runnerInstance.run();
+
+    sinon.assert.calledOnce(params.chromiumLaunch);
+    sinon.assert.calledWithMatch(params.chromiumLaunch, {
+      port,
+    });
+
+    await runnerInstance.exit();
+  });
+
   describe('reloadAllExtensions', () => {
     let runnerInstance;
     let wsClient;