puppeteer_tests: Translate logged traces and errors with source maps.

Signed-off-by: Anders Kaseorg <anders@zulip.com>

frontend_tests/puppeteer_lib/common.ts

@@ -2,8 +2,12 @@ import {strict as assert} from "assert";
 import "css.escape";
 import path from "path";
 
+import ErrorStackParser from "error-stack-parser";
+import fetch from "node-fetch";
 import type {Browser, ConsoleMessage, ConsoleMessageLocation, ElementHandle, Page} from "puppeteer";
 import {launch} from "puppeteer";
+import StackFrame from "stackframe";
+import StackTraceGPS from "stacktrace-gps";
 
 import {test_credentials} from "../../var/puppeteer/test_credentials";
 
@@ -17,6 +21,8 @@ class CommonUtils {
     screenshot_id = 0;
     is_firefox = process.env.PUPPETEER_PRODUCT === "firefox";
     realm_url = "http://zulip.zulipdev.com:9981/";
+    gps = new StackTraceGPS({ajax: async (url) => (await fetch(url)).text()});
+
     pm_recipient = {
         async set(page: Page, recipient: string): Promise<void> {
             // Without using the delay option here there seems to be
@@ -493,51 +499,102 @@ class CommonUtils {
         const browser = await this.ensure_browser();
         const page = await this.get_page();
 
+        // Used to keep console messages in order after async source mapping
+        let console_ready = Promise.resolve();
+
         page.on("console", (message: ConsoleMessage) => {
-            function context({url, lineNumber, columnNumber}: ConsoleMessageLocation): string {
+            const context = async ({
+                url,
+                lineNumber,
+                columnNumber,
+            }: ConsoleMessageLocation): Promise<string> => {
                 if (lineNumber === undefined || columnNumber === undefined) {
                     return `${url}`;
                 }
-                return `${url}:${lineNumber + 1}:${columnNumber + 1}`;
-            }
 
-            console.log(`${context(message.location())}: ${message.type()}: ${message.text()}`);
+                let frame = new StackFrame({
+                    fileName: url,
+                    lineNumber: lineNumber + 1,
+                    columnNumber: columnNumber + 1,
+                });
+                try {
+                    frame = await this.gps.getMappedLocation(frame);
+                } catch {
+                    // Ignore source mapping errors
+                }
+                return `${frame.fileName}:${frame.lineNumber}:${frame.columnNumber}`;
+            };
+
+            const console_ready1 = console_ready;
+            console_ready = (async () => {
+                let output = `${await context(
+                    message.location(),
+                )}: ${message.type()}: ${message.text()}`;
                 if (message.type() === "trace") {
                     for (const frame of message.stackTrace()) {
-                    console.log(`    at ${context(frame)}`);
+                        output += `\n    at ${await context(frame)}`;
                     }
                 }
+                await console_ready1;
+                console.log(output);
+            })();
         });
 
         let page_errored = false;
-        page.on("pageerror", async (error: Error) => {
+        page.on("pageerror", (error: Error) => {
-            console.error("Page error:", error);
             page_errored = true;
 
+            // Puppeteer gives us the stack as the message for some reason.
+            const error1 = new Error("dummy");
+            error1.stack = error.message;
+
+            const console_ready1 = console_ready;
+            console_ready = (async () => {
+                const frames = await Promise.all(
+                    ErrorStackParser.parse(error1).map(async (frame1) => {
+                        let frame = (frame1 as unknown) as StackFrame;
+                        try {
+                            frame = await this.gps.getMappedLocation(frame);
+                        } catch {
+                            // Ignore source mapping errors
+                        }
+                        return `\n    at ${frame.functionName} (${frame.fileName}:${frame.lineNumber}:${frame.columnNumber})`;
+                    }),
+                );
+                await console_ready1;
+                console.error("Page error:", error.message.split("\n", 1)[0] + frames.join(""));
+            })();
+
+            const console_ready2 = console_ready;
+            console_ready = (async () => {
                 try {
                     // Take a screenshot, and increment the screenshot_id.
                     await this.screenshot(page, `failure-${this.screenshot_id}`);
                     this.screenshot_id += 1;
                 } finally {
+                    await console_ready2;
                     console.log("Closing page to stop the test...");
                     await page.close();
                 }
+            })();
         });
 
         try {
             await test_function(page);
-        } catch (error: unknown) {
-            console.log(error);
 
+            if (page_errored) {
+                throw new Error("Page threw an error");
+            }
+        } catch (error: unknown) {
             if (!page_errored) {
                 // Take a screenshot, and increment the screenshot_id.
                 await this.screenshot(page, `failure-${this.screenshot_id}`);
                 this.screenshot_id += 1;
             }
 
-            await browser.close();
+            throw error;
-            process.exit(1);
         } finally {
+            await console_ready;
             await browser.close();
         }
     }

package.json

@@ -84,6 +84,7 @@
     "@types/jquery": "^3.3.31",
     "@types/mini-css-extract-plugin": "^1.0.0",
     "@types/node": "^14.0.11",
+    "@types/node-fetch": "^2.5.8",
     "@types/optimize-css-assets-webpack-plugin": "^5.0.1",
     "@types/terser-webpack-plugin": "^4.1.0",
     "@types/webpack": "^4.4.32",
@@ -99,6 +100,7 @@
     "js-yaml": "^4.0.0",
     "jsdom": "^16.1.0",
     "mockdate": "^3.0.2",
+    "node-fetch": "^2.6.1",
     "nyc": "^15.0.0",
     "openapi-examples-validator": "^4.0.0",
     "prettier": "^2.0.5",

version.py

@@ -45,4 +45,4 @@ API_FEATURE_LEVEL = 44
 #   historical commits sharing the same major version, in which case a
 #   minor version bump suffices.
 
-PROVISION_VERSION = "134.0"
+PROVISION_VERSION = "134.1"

yarn.lock

@@ -1264,6 +1264,14 @@
   resolved "https://registry.yarnpkg.com/@types/minimist/-/minimist-1.2.1.tgz#283f669ff76d7b8260df8ab7a4262cc83d988256"
   integrity sha512-fZQQafSREFyuZcdWFAExYjBiCL7AUCdgsk80iO0q4yihYYdcIiH28CcuPTGFgLOCC8RlW49GSQxdHwZP+I7CNg==
 
+"@types/node-fetch@^2.5.8":
+  version "2.5.8"
+  resolved "https://registry.yarnpkg.com/@types/node-fetch/-/node-fetch-2.5.8.tgz#e199c835d234c7eb0846f6618012e558544ee2fb"
+  integrity sha512-fbjI6ja0N5ZA8TV53RUqzsKNkl9fv8Oj3T7zxW7FGv1GSH7gwJaNF8dzCjrqKaxKeUpTz4yT1DaJFq/omNpGfw==
+  dependencies:
+    "@types/node" "*"
+    form-data "^3.0.0"
+
 "@types/node@*", "@types/node@^14.0.11":
   version "14.14.31"
   resolved "https://registry.yarnpkg.com/@types/node/-/node-14.14.31.tgz#72286bd33d137aa0d152d47ec7c1762563d34055"
@@ -3229,7 +3237,7 @@ colormap@^2.3.1:
   dependencies:
     lerp "^1.0.3"
 
-combined-stream@^1.0.6, combined-stream@~1.0.6:
+combined-stream@^1.0.6, combined-stream@^1.0.8, combined-stream@~1.0.6:
   version "1.0.8"
   resolved "https://registry.yarnpkg.com/combined-stream/-/combined-stream-1.0.8.tgz#c3d45a8b34fd730631a110a8a2520682b31d5a7f"
   integrity sha512-FQN4MRfuJeHf7cBbBMJFXhKSDq+2kAArBlmRBvcvFE5BB1HZKXtSFASDhdlz9zOYwxh8lDdnvmMOe/+5cdoEdg==
@@ -5347,6 +5355,15 @@ form-data@^2.3.2:
     combined-stream "^1.0.6"
     mime-types "^2.1.12"
 
+form-data@^3.0.0:
+  version "3.0.1"
+  resolved "https://registry.yarnpkg.com/form-data/-/form-data-3.0.1.tgz#ebd53791b78356a99af9a300d4282c4d5eb9755f"
+  integrity sha512-RHkBKtLWUVwd7SqRIvCZMEvAMoGUp0XU+seQiZejj0COz3RI3hWP4sCv3gZWWLjJTd7rGwcsF5eKZGii0r/hbg==
+  dependencies:
+    asynckit "^0.4.0"
+    combined-stream "^1.0.8"
+    mime-types "^2.1.12"
+
 form-data@~2.3.2:
   version "2.3.3"
   resolved "https://registry.yarnpkg.com/form-data/-/form-data-2.3.3.tgz#dcce52c05f644f298c6a7ab936bd724ceffbf3a6"