1 files changed, 76 insertions, 0 deletions
diff --git a/devtools/shared/commands/resource/tests/browser_resources_invalid_api_usage.js b/devtools/shared/commands/resource/tests/browser_resources_invalid_api_usage.js
new file mode 100644
index 0000000000..8a1d809f04
--- /dev/null
+++ b/devtools/shared/commands/resource/tests/browser_resources_invalid_api_usage.js
@@ -0,0 +1,76 @@
+/* Any copyright is dedicated to the Public Domain.
+   http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+// Test watch/unwatchResources throw when provided with invalid types.
+
+const TEST_URI = "data:text/html;charset=utf-8,invalid api usage test";
+
+add_task(async function () {
+  const tab = await addTab(TEST_URI);
+
+  const { client, resourceCommand, targetCommand } = await initResourceCommand(
+    tab
+  );
+
+  const onAvailable = function () {};
+
+  await Assert.rejects(
+    resourceCommand.watchResources([null], { onAvailable }),
+    /ResourceCommand\.watchResources invoked with an unknown type/,
+    "watchResources should throw for null type"
+  );
+
+  await Assert.rejects(
+    resourceCommand.watchResources([undefined], { onAvailable }),
+    /ResourceCommand\.watchResources invoked with an unknown type/,
+    "watchResources should throw for undefined type"
+  );
+
+  await Assert.rejects(
+    resourceCommand.watchResources(["NOT_A_RESOURCE"], { onAvailable }),
+    /ResourceCommand\.watchResources invoked with an unknown type/,
+    "watchResources should throw for unknown type"
+  );
+
+  await Assert.rejects(
+    resourceCommand.watchResources(
+      [resourceCommand.TYPES.CONSOLE_MESSAGE, "NOT_A_RESOURCE"],
+      { onAvailable }
+    ),
+    /ResourceCommand\.watchResources invoked with an unknown type/,
+    "watchResources should throw for unknown type mixed with a correct type"
+  );
+
+  await Assert.throws(
+    () => resourceCommand.unwatchResources([null], { onAvailable }),
+    /ResourceCommand\.unwatchResources invoked with an unknown type/,
+    "unwatchResources should throw for null type"
+  );
+
+  await Assert.throws(
+    () => resourceCommand.unwatchResources([undefined], { onAvailable }),
+    /ResourceCommand\.unwatchResources invoked with an unknown type/,
+    "unwatchResources should throw for undefined type"
+  );
+
+  await Assert.throws(
+    () => resourceCommand.unwatchResources(["NOT_A_RESOURCE"], { onAvailable }),
+    /ResourceCommand\.unwatchResources invoked with an unknown type/,
+    "unwatchResources should throw for unknown type"
+  );
+
+  await Assert.throws(
+    () =>
+      resourceCommand.unwatchResources(
+        [resourceCommand.TYPES.CONSOLE_MESSAGE, "NOT_A_RESOURCE"],
+        { onAvailable }
+      ),
+    /ResourceCommand\.unwatchResources invoked with an unknown type/,
+    "unwatchResources should throw for unknown type mixed with a correct type"
+  );
+
+  targetCommand.destroy();
+  await client.close();
+});