WIP debug

scalability-benchmark/client/spawn-peer.js

@@ -4,16 +4,23 @@ const appUrl = process.env.APP_URL
 const peerIndex = parseInt(process.env.PEER_INDEX)
 const numPeers = parseInt(process.env.NUM_PEERS)
 
-const syncTimeout = numPeers * 4000
+const syncTimeout = numPeers * 6000
 
 ;(async () => {
   const browser = await puppeteer.launch()
   try {
     // Open the application.
     const page = await browser.newPage()
+    page.on('console', console_ => console.log(console_.text()));
     await page.goto(appUrl)
     console.log(`Peer ${peerIndex}: Connected.`)
 
+    let n = await page.evaluate(() => {
+      const canvas = document.querySelector("#canvas")
+      return canvas.childElementCount - 1
+    })
+    console.log(`Peer ${peerIndex}: Strokes: ${n}`)
+
     // Set up observer.
     // Observe the time taken to receive draw calls from all peers, or how many
     // were synced if it takes longer than `syncTimeout`.
@@ -36,6 +43,12 @@ const syncTimeout = numPeers * 4000
       syncTimeout,
     )
 
+    n = await page.evaluate(() => {
+      const canvas = document.querySelector("#canvas")
+      return canvas.childElementCount - 1
+    })
+    console.log(`Peer ${peerIndex}: Strokes: ${n}`)
+
     // Simulate a mouse click on the canvas.
     const [left, top] = await page.evaluate(() => {
       const rect = document.querySelector("#canvas").getBoundingClientRect()
@@ -44,6 +57,12 @@ const syncTimeout = numPeers * 4000
     await page.mouse.click(left + 10 + 10 * peerIndex, top + 10)
     console.log(`Peer ${peerIndex}: Drawn.`)
 
+    n = await page.evaluate(() => {
+      const canvas = document.querySelector("#canvas")
+      return canvas.childElementCount - 1
+    })
+    console.log(`Peer ${peerIndex}: Strokes: ${n}`)
+
     // Wait for the observed result.
     const [elapsed, numSynced] = await page.evaluate(async () => {
       return await window.result