feat: various docker integration improvements (#9988)

- shorter docker terminal message
- terminate testrunner if docker cannot be found
- use `-docker` suffix for snapshots / screenshots.

packages/playwright-core/src/grid/dockerGridFactory.ts

@@ -28,8 +28,7 @@ const dockerFactory: GridFactory = {
     const { vncUrl } = await launchDockerGridAgent(options.agentId, options.gridURL);
     /* eslint-disable no-console */
     console.log(``);
-    console.log(`✨ Running browsers inside docker container ✨`);
-    console.log(`- look inside: ${vncUrl}`);
+    console.log(`✨ Running browsers inside docker container: ${vncUrl} ✨`);
   }
 };
 

packages/playwright-core/src/grid/gridServer.ts

@@ -285,12 +285,12 @@ export class GridServer {
     });
   }
 
-  public async createAgent() {
+  public async createAgent(): Promise<{ error: any }> {
     const { initPromise } = this._createAgent();
-    await initPromise;
+    return await initPromise;
   }
 
-  private _createAgent(): {agent: GridAgent, initPromise: Promise<{success: boolean, error: any}>} {
+  private _createAgent(): {agent: GridAgent, initPromise: Promise<{ error: any }>} {
     const agent = new GridAgent(this._factory.capacity, this._factory.launchTimeout, this._factory.retireTimeout);
     this._agents.set(agent.agentId, agent);
     agent.on('close', () => {
@@ -303,12 +303,12 @@ export class GridServer {
           playwrightVersion: getPlaywrightVersion(),
         })).then(() => {
           this._log('created');
-          return { success: true, error: undefined };
+          return { error: undefined };
         }).catch(error => {
           this._log('failed to launch agent ' + agent.agentId);
           console.error(error);
           agent.closeAgent(WSErrors.AGENT_CREATION_FAILED);
-          return { success: false, error };
+          return { error };
         });
     return { agent, initPromise };
   }

packages/playwright-test/src/cli.ts

@@ -232,7 +232,9 @@ async function launchDockerContainer(): Promise<() => Promise<void>> {
   const gridServer = new GridServer(dockerFactory, createGuid());
   await gridServer.start();
   // Start docker container in advance.
-  await gridServer.createAgent();
+  const { error } = await gridServer.createAgent();
+  if (error)
+    throw error;
   process.env.PW_GRID = gridServer.urlPrefix().substring(0, gridServer.urlPrefix().length - 1);
   return async () => await gridServer.stop();
 }

packages/playwright-test/src/index.ts

@@ -169,7 +169,7 @@ export const test = _baseTest.extend<TestFixtures, WorkerAndFileFixtures>({
     });
   },
 
-  _snapshotSuffix: [process.platform, { scope: 'worker' }],
+  _snapshotSuffix: [process.env.PLAYWRIGHT_DOCKER ? 'docker' : process.platform, { scope: 'worker' }],
 
   _setupContextOptionsAndArtifacts: [async ({ _snapshotSuffix, _browserType, _combinedContextOptions, _artifactsDir, trace, screenshot, actionTimeout, navigationTimeout }, use, testInfo) => {
     testInfo.snapshotSuffix = _snapshotSuffix;