move log buffers into session, start logging implicitely

src/session.js

@@ -16,12 +16,33 @@ limitations under the License.
 
 const puppeteer = require('puppeteer');
 
+class LogBuffer {
+  constructor(page, eventName, eventMapper, reduceAsync=false, initialValue = "") {
+    this.buffer = initialValue;
+    page.on(eventName, (arg) => {
+      const result = eventMapper(arg);
+      if (reduceAsync) {
+        result.then((r) => this.buffer += r);
+      }
+      else {
+        this.buffer += result;
+      }
+    });
+  }
+}
+
 module.exports = class RiotSession {
   constructor(browser, page, username, riotserver) {
     this.browser = browser;
     this.page = page;
     this.riotserver = riotserver;
     this.username = username;
+    this.consoleLog = new LogBuffer(page, "console", (msg) => `${msg.text()}\n`);
+    this.networkLog = new LogBuffer(page, "requestfinished", async (req) => {
+      const type = req.resourceType();
+      const response = await req.response();
+      return `${type} ${response.status()} ${req.method()} ${req.url()} \n`;
+    }, true);
   }
 
   static async create(username, puppeteerOptions, riotserver) {
@@ -48,16 +69,12 @@ module.exports = class RiotSession {
     return await text_handle.jsonValue();
   }
 
-  logConsole() {
-    let buffer = "";
-    this.page.on('console', msg => {
-      buffer += msg.text() + '\n';
-    });
-    return {
-      logs() {
-        return buffer;
-      }
-    }
+  consoleLogs() {
+    return this.consoleLog.buffer;
+  }
+
+  networkLogs() {
+    return this.networkLog.buffer;
   }
 
   logXHRRequests() {

start.js

@@ -25,9 +25,7 @@ const acceptServerNoticesInviteAndConsent = require('./src/tests/server-notices-
 const homeserver = 'http://localhost:8008';
 const riotserver = 'http://localhost:5000';
 
-let consoleLogs = null;
-let xhrLogs = null;
-let globalPage = null;
+let sessions = [];
 
 async function runTests() {
   console.log("running tests ...");
@@ -39,9 +37,7 @@ async function runTests() {
   }
 
   const alice = await RiotSession.create("alice", options, riotserver);
-
-  consoleLogs = alice.logConsole();
-  xhrLogs = alice.logXHRRequests();
+  sessions.push(alice);
   
   process.stdout.write(`* signing up as ${alice.username} ... `);
   await signup(alice, alice.username, 'testtest');
@@ -65,19 +61,19 @@ function onSuccess() {
 }
 
 async function onFailure(err) {
-
-  let documentHtml = "no page";
-  if (globalPage) {
-    documentHtml = await globalPage.content();
-  }
-
   console.log('failure: ', err);
-  console.log('console.log output:');
-  console.log(consoleLogs.logs());
-  console.log('XHR requests:');
-  console.log(xhrLogs.logs());
-  console.log('document html:');
-  console.log(documentHtml);
+  for(var i = 0; i < sessions.length; ++i) {
+    const session = sessions[i];
+    documentHtml = await session.page.content();
+    console.log(`---------------- START OF ${session.username} LOGS ----------------`);
+    console.log('---------------- console.log output:');
+    console.log(session.consoleLogs());
+    console.log('---------------- network requests:');
+    console.log(session.networkLogs());
+    console.log('---------------- document html:');
+    console.log(documentHtml);
+    console.log(`---------------- END OF ${session.username} LOGS   ----------------`);
+  }
   
   process.exit(-1);
 }