1 files changed, 87 insertions, 0 deletions
diff --git a/devtools/shared/commands/resource/tests/browser_browser_resources_console_messages.js b/devtools/shared/commands/resource/tests/browser_browser_resources_console_messages.js
new file mode 100644
index 0000000000..1c6c776e64
--- /dev/null
+++ b/devtools/shared/commands/resource/tests/browser_browser_resources_console_messages.js
@@ -0,0 +1,87 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Test the ResourceCommand API around CONSOLE_MESSAGE for the whole browser
+
+const TEST_URL = URL_ROOT_SSL + "early_console_document.html";
+
+add_task(async function () {
+  // Enable Multiprocess Browser Toolbox.
+  await pushPref("devtools.browsertoolbox.scope", "everything");
+
+  const { client, resourceCommand, targetCommand } =
+    await initMultiProcessResourceCommand();
+
+  const d = Date.now();
+  const CACHED_MESSAGE_TEXT = `cached-${d}`;
+  const LIVE_MESSAGE_TEXT = `live-${d}`;
+
+  info(
+    "Log some messages *before* calling ResourceCommand.watchResources in order to " +
+      "assert the behavior of already existing messages."
+  );
+  console.log(CACHED_MESSAGE_TEXT);
+
+  info("Wait for existing browser mochitest log");
+  const { onResource } = await resourceCommand.waitForNextResource(
+    resourceCommand.TYPES.CONSOLE_MESSAGE,
+    {
+      ignoreExistingResources: false,
+      predicate({ message }) {
+        return message.arguments[0] === CACHED_MESSAGE_TEXT;
+      },
+    }
+  );
+  const existingMsg = await onResource;
+  ok(existingMsg, "The existing log was retrieved");
+  is(
+    existingMsg.isAlreadyExistingResource,
+    true,
+    "isAlreadyExistingResource is true for the existing message"
+  );
+
+  const { onResource: onMochitestRuntimeLog } =
+    await resourceCommand.waitForNextResource(
+      resourceCommand.TYPES.CONSOLE_MESSAGE,
+      {
+        ignoreExistingResources: false,
+        predicate({ message }) {
+          return message.arguments[0] === LIVE_MESSAGE_TEXT;
+        },
+      }
+    );
+  console.log(LIVE_MESSAGE_TEXT);
+
+  info("Wait for runtime browser mochitest log");
+  const runtimeLogResource = await onMochitestRuntimeLog;
+  ok(runtimeLogResource, "The runtime log was retrieved");
+  is(
+    runtimeLogResource.isAlreadyExistingResource,
+    false,
+    "isAlreadyExistingResource is false for the runtime message"
+  );
+
+  const { onResource: onEarlyLog } = await resourceCommand.waitForNextResource(
+    resourceCommand.TYPES.CONSOLE_MESSAGE,
+    {
+      ignoreExistingResources: true,
+      predicate({ message }) {
+        return message.arguments[0] === "early-page-log";
+      },
+    }
+  );
+  await addTab(TEST_URL);
+  info("Wait for early page log");
+  const earlyResource = await onEarlyLog;
+  ok(earlyResource, "The early page log was retrieved");
+  is(
+    earlyResource.isAlreadyExistingResource,
+    false,
+    "isAlreadyExistingResource is false for the early message"
+  );
+
+  targetCommand.destroy();
+  await client.close();
+});