1 files changed, 87 insertions, 0 deletions
diff --git a/devtools/client/webconsole/test/browser/browser_webconsole_time_methods.js b/devtools/client/webconsole/test/browser/browser_webconsole_time_methods.js
new file mode 100644
index 0000000000..ee8b9b30e2
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+++ b/devtools/client/webconsole/test/browser/browser_webconsole_time_methods.js
@@ -0,0 +1,87 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+// Tests that the Console API implements the time() and timeEnd() methods.
+
+"use strict";
+
+const TEST_URI =
+  "http://example.com/browser/devtools/client/webconsole/" +
+  "test/browser/test-time-methods.html";
+
+const TEST_URI2 =
+  "data:text/html;charset=utf-8,<!DOCTYPE html><script>" +
+  "console.timeEnd('bTimer');</script>";
+
+const TEST_URI3 =
+  "data:text/html;charset=utf-8,<!DOCTYPE html><script>" +
+  "console.time('bTimer');console.log('smoke signal');</script>";
+
+const TEST_URI4 =
+  "data:text/html;charset=utf-8,<!DOCTYPE html>" +
+  "<script>console.timeEnd('bTimer');</script>";
+
+add_task(async function () {
+  // Calling console.time('aTimer') followed by console.timeEnd('aTimer')
+  // should result in the aTimer being ended, and a message like aTimer: 123ms
+  // printed to the console
+  const hud1 = await openNewTabAndConsole(TEST_URI);
+
+  const aTimerCompleted = await waitFor(() =>
+    findConsoleAPIMessage(hud1, "aTimer: ")
+  );
+  ok(
+    aTimerCompleted.textContent.includes("- timer ended"),
+    "Calling " + "console.time('a') and console.timeEnd('a')ends the 'a' timer"
+  );
+
+  // Calling console.time('bTimer') in the current tab, opening a new tab
+  // and calling console.timeEnd('bTimer') in the new tab should not result in
+  // the bTimer in the initial tab being ended, but rather a warning message
+  // output to the console: Timer "bTimer" doesn't exist
+  const hud2 = await openNewTabAndConsole(TEST_URI2);
+
+  const error1 = await waitFor(() =>
+    findWarningMessage(hud2, "bTimer", ".timeEnd")
+  );
+  ok(
+    error1,
+    "Timers with the same name but in separate tabs do not contain " +
+      "the same value"
+  );
+
+  // The next tests make sure that timers with the same name but in separate
+  // pages do not contain the same value.
+  await navigateTo(TEST_URI3);
+
+  // The new console front-end does not display a message when timers are started,
+  // so there should not be a 'bTimer started' message on the output
+
+  // We use this await to 'sync' until the message appears, as the console API
+  // guarantees us that the smoke signal will be printed after the message for
+  // console.time("bTimer") (if there were any)
+  await waitFor(() => findConsoleAPIMessage(hud2, "smoke signal"));
+
+  is(
+    findConsoleAPIMessage(hud2, "bTimer started"),
+    undefined,
+    "No message is printed to " + "the console when the timer starts"
+  );
+
+  await clearOutput(hud2);
+
+  // Calling console.time('bTimer') on a page, then navigating to another page
+  // and calling console.timeEnd('bTimer') on the new console front-end should
+  // result on a warning message: 'Timer "bTimer" does not exist',
+  // as the timers in different pages are not related
+  await navigateTo(TEST_URI4);
+
+  const error2 = await waitFor(() =>
+    findWarningMessage(hud2, "bTimer", ".timeEnd")
+  );
+  ok(
+    error2,
+    "Timers with the same name but in separate pages do not contain " +
+      "the same value"
+  );
+});