1 files changed, 101 insertions, 0 deletions
diff --git a/browser/components/extensions/test/browser/browser_ext_contentscript_in_parent.js b/browser/components/extensions/test/browser/browser_ext_contentscript_in_parent.js
new file mode 100644
index 0000000000..5a8bbcb589
--- /dev/null
+++ b/browser/components/extensions/test/browser/browser_ext_contentscript_in_parent.js
@@ -0,0 +1,101 @@
+"use strict";
+
+const TELEMETRY_EVENT = "security#javascriptLoad#parentProcess";
+
+add_task(async function test_contentscript_telemetry() {
+  // Turn on telemetry and reset it to the previous state once the test is completed.
+  // const telemetryCanRecordBase = Services.telemetry.canRecordBase;
+  // Services.telemetry.canRecordBase = true;
+  // SimpleTest.registerCleanupFunction(() => {
+  //   Services.telemetry.canRecordBase = telemetryCanRecordBase;
+  // });
+
+  function background() {
+    browser.test.onMessage.addListener(async msg => {
+      if (msg !== "execute") {
+        return;
+      }
+      browser.tabs.executeScript({
+        file: "execute_script.js",
+        allFrames: true,
+        matchAboutBlank: true,
+        runAt: "document_start",
+      });
+
+      await browser.userScripts.register({
+        js: [{ file: "user_script.js" }],
+        matches: ["<all_urls>"],
+        matchAboutBlank: true,
+        allFrames: true,
+        runAt: "document_start",
+      });
+
+      await browser.contentScripts.register({
+        js: [{ file: "content_script.js" }],
+        matches: ["<all_urls>"],
+        matchAboutBlank: true,
+        allFrames: true,
+        runAt: "document_start",
+      });
+
+      browser.test.sendMessage("executed");
+    });
+  }
+
+  let extensionData = {
+    manifest: {
+      permissions: ["tabs", "<all_urls>"],
+      user_scripts: {},
+    },
+    background,
+    files: {
+      // Fail if this ever executes.
+      "execute_script.js": 'browser.test.fail("content-script-run");',
+      "user_script.js": 'browser.test.fail("content-script-run");',
+      "content_script.js": 'browser.test.fail("content-script-run");',
+    },
+  };
+
+  function getSecurityEventCount() {
+    let snap = Services.telemetry.getSnapshotForKeyedScalars();
+    return snap.parent["telemetry.event_counts"][TELEMETRY_EVENT] || 0;
+  }
+
+  let tab = await BrowserTestUtils.openNewForegroundTab(
+    gBrowser,
+    "about:preferences"
+  );
+  is(
+    getSecurityEventCount(),
+    0,
+    `No events recorded before startup: ${TELEMETRY_EVENT}.`
+  );
+
+  let extension = ExtensionTestUtils.loadExtension(extensionData);
+
+  await extension.startup();
+  is(
+    getSecurityEventCount(),
+    0,
+    `No events recorded after startup: ${TELEMETRY_EVENT}.`
+  );
+
+  extension.sendMessage("execute");
+  await extension.awaitMessage("executed");
+
+  // Do another load.
+  BrowserTestUtils.removeTab(tab);
+  tab = await BrowserTestUtils.openNewForegroundTab(
+    gBrowser,
+    "about:preferences"
+  );
+
+  BrowserTestUtils.removeTab(tab);
+  await extension.unload();
+
+  is(
+    getSecurityEventCount(),
+    0,
+    `No events recorded after executeScript: ${TELEMETRY_EVENT}.`
+  );
+});