1 files changed, 237 insertions, 0 deletions
diff --git a/browser/base/content/test/tabcrashed/head.js b/browser/base/content/test/tabcrashed/head.js
new file mode 100644
index 0000000000..321e42f04d
--- /dev/null
+++ b/browser/base/content/test/tabcrashed/head.js
@@ -0,0 +1,237 @@
+"use strict";
+
+const { TelemetryTestUtils } = ChromeUtils.importESModule(
+  "resource://testing-common/TelemetryTestUtils.sys.mjs"
+);
+
+/**
+ * Returns a Promise that resolves once a crash report has
+ * been submitted. This function will also test the crash
+ * reports extra data to see if it matches expectedExtra.
+ *
+ * @param expectedExtra (object)
+ *        An Object whose key-value pairs will be compared
+ *        against the key-value pairs in the extra data of the
+ *        crash report. A test failure will occur if there is
+ *        a mismatch.
+ *
+ *        If the value of the key-value pair is "null", this will
+ *        be interpreted as "this key should not be included in the
+ *        extra data", and will cause a test failure if it is detected
+ *        in the crash report.
+ *
+ *        Note that this will ignore any keys that are not included
+ *        in expectedExtra. It's possible that the crash report
+ *        will contain other extra information that is not
+ *        compared against.
+ * @returns Promise
+ */
+function promiseCrashReport(expectedExtra = {}) {
+  return (async function() {
+    info("Starting wait on crash-report-status");
+    let [subject] = await TestUtils.topicObserved(
+      "crash-report-status",
+      (unused, data) => {
+        return data == "success";
+      }
+    );
+    info("Topic observed!");
+
+    if (!(subject instanceof Ci.nsIPropertyBag2)) {
+      throw new Error("Subject was not a Ci.nsIPropertyBag2");
+    }
+
+    let remoteID = getPropertyBagValue(subject, "serverCrashID");
+    if (!remoteID) {
+      throw new Error("Report should have a server ID");
+    }
+
+    let file = Cc["@mozilla.org/file/local;1"].createInstance(Ci.nsIFile);
+    file.initWithPath(Services.crashmanager._submittedDumpsDir);
+    file.append(remoteID + ".txt");
+    if (!file.exists()) {
+      throw new Error("Report should have been received by the server");
+    }
+
+    file.remove(false);
+
+    let extra = getPropertyBagValue(subject, "extra");
+    if (!(extra instanceof Ci.nsIPropertyBag2)) {
+      throw new Error("extra was not a Ci.nsIPropertyBag2");
+    }
+
+    info("Iterating crash report extra keys");
+    for (let { name: key } of extra.enumerator) {
+      let value = extra.getPropertyAsAString(key);
+      if (key in expectedExtra) {
+        if (expectedExtra[key] == null) {
+          ok(false, `Got unexpected key ${key} with value ${value}`);
+        } else {
+          is(
+            value,
+            expectedExtra[key],
+            `Crash report had the right extra value for ${key}`
+          );
+        }
+      }
+    }
+  })();
+}
+
+/**
+ * For an nsIPropertyBag, returns the value for a given
+ * key.
+ *
+ * @param bag
+ *        The nsIPropertyBag to retrieve the value from
+ * @param key
+ *        The key that we want to get the value for from the
+ *        bag
+ * @returns The value corresponding to the key from the bag,
+ *          or null if the value could not be retrieved (for
+ *          example, if no value is set at that key).
+ */
+function getPropertyBagValue(bag, key) {
+  try {
+    let val = bag.getProperty(key);
+    return val;
+  } catch (e) {
+    if (e.result != Cr.NS_ERROR_FAILURE) {
+      throw e;
+    }
+  }
+
+  return null;
+}
+
+/**
+ * Sets up the browser to send crash reports to the local crash report
+ * testing server.
+ */
+async function setupLocalCrashReportServer() {
+  const SERVER_URL =
+    "http://example.com/browser/toolkit/crashreporter/test/browser/crashreport.sjs";
+
+  // The test harness sets MOZ_CRASHREPORTER_NO_REPORT, which disables crash
+  // reports.  This test needs them enabled.  The test also needs a mock
+  // report server, and fortunately one is already set up by toolkit/
+  // crashreporter/test/Makefile.in.  Assign its URL to MOZ_CRASHREPORTER_URL,
+  // which CrashSubmit.jsm uses as a server override.
+  let noReport = Services.env.get("MOZ_CRASHREPORTER_NO_REPORT");
+  let serverUrl = Services.env.get("MOZ_CRASHREPORTER_URL");
+  Services.env.set("MOZ_CRASHREPORTER_NO_REPORT", "");
+  Services.env.set("MOZ_CRASHREPORTER_URL", SERVER_URL);
+
+  registerCleanupFunction(function() {
+    Services.env.set("MOZ_CRASHREPORTER_NO_REPORT", noReport);
+    Services.env.set("MOZ_CRASHREPORTER_URL", serverUrl);
+  });
+}
+
+/**
+ * Monkey patches TabCrashHandler.getDumpID to return null in order to test
+ * about:tabcrashed when a dump is not available.
+ */
+function prepareNoDump() {
+  let originalGetDumpID = TabCrashHandler.getDumpID;
+  TabCrashHandler.getDumpID = function(browser) {
+    return null;
+  };
+  registerCleanupFunction(() => {
+    TabCrashHandler.getDumpID = originalGetDumpID;
+  });
+}
+
+const kBuildidMatchEnv = "MOZ_BUILDID_MATCH_DONTSEND";
+
+function setBuildidMatchDontSendEnv() {
+  info("Setting " + kBuildidMatchEnv + "=1");
+  Services.env.set(kBuildidMatchEnv, "1");
+}
+
+function unsetBuildidMatchDontSendEnv() {
+  info("Setting " + kBuildidMatchEnv + "=0");
+  Services.env.set(kBuildidMatchEnv, "0");
+}
+
+function getEventPromise(eventName, eventKind) {
+  return new Promise(function(resolve, reject) {
+    info("Installing event listener (" + eventKind + ")");
+    window.addEventListener(
+      eventName,
+      event => {
+        ok(true, "Received " + eventName + " (" + eventKind + ") event");
+        info("Call resolve() for " + eventKind + " event");
+        resolve();
+      },
+      { once: true }
+    );
+    info("Installed event listener (" + eventKind + ")");
+  });
+}
+
+async function ensureBuildID() {
+  let profD = Services.dirsvc.get("GreD", Ci.nsIFile);
+  let platformIniOrig = await IOUtils.readUTF8(
+    PathUtils.join(profD.path, "platform.ini")
+  );
+  let buildID = Services.appinfo.platformBuildID;
+  return platformIniOrig.indexOf(buildID) > 0;
+}
+
+async function openNewTab(forceCrash) {
+  const PAGE =
+    "data:text/html,<html><body>A%20regular,%20everyday,%20normal%20page.";
+
+  let options = {
+    gBrowser,
+    PAGE,
+    waitForLoad: false,
+    waitForStateStop: false,
+    forceNewProcess: true,
+  };
+
+  let tab = await BrowserTestUtils.openNewForegroundTab(options);
+  if (forceCrash === true) {
+    let browser = tab.linkedBrowser;
+    await BrowserTestUtils.crashFrame(
+      browser,
+      /* shouldShowTabCrashPage */ false,
+      /* shouldClearMinidumps */ true,
+      /* BrowsingContext */ null
+    );
+  }
+
+  return tab;
+}
+
+async function closeTab(tab) {
+  await TestUtils.waitForTick();
+  BrowserTestUtils.removeTab(tab);
+}
+
+function getFalsePositiveTelemetry() {
+  const scalars = TelemetryTestUtils.getProcessScalars("parent");
+  return scalars["dom.contentprocess.buildID_mismatch_false_positive"];
+}
+
+// The logic bound to dom.ipc.processPrelaunch.enabled will react to value
+// changes: https://searchfox.org/mozilla-central/rev/ecd91b104714a8b2584a4c03175be50ccb3a7c67/dom/ipc/PreallocatedProcessManager.cpp#171-195
+// So we force flip to ensure we have no dangling process.
+async function forceCleanProcesses() {
+  const origPrefValue = SpecialPowers.getBoolPref(
+    "dom.ipc.processPrelaunch.enabled"
+  );
+  await SpecialPowers.setBoolPref(
+    "dom.ipc.processPrelaunch.enabled",
+    !origPrefValue
+  );
+  await SpecialPowers.setBoolPref(
+    "dom.ipc.processPrelaunch.enabled",
+    origPrefValue
+  );
+  const currPrefValue = SpecialPowers.getBoolPref(
+    "dom.ipc.processPrelaunch.enabled"
+  );
+  ok(currPrefValue === origPrefValue, "processPrelaunch properly re-enabled");
+}