2 files changed, 109 insertions, 0 deletions
diff --git a/testing/mozbase/mozgeckoprofiler/tests/manifest.toml b/testing/mozbase/mozgeckoprofiler/tests/manifest.toml
new file mode 100644
index 0000000000..95bae86eab
--- /dev/null
+++ b/testing/mozbase/mozgeckoprofiler/tests/manifest.toml
@@ -0,0 +1,4 @@
+[DEFAULT]
+subsuite = "mozbase"
+
+["test_view_gecko_profiler.py"]
diff --git a/testing/mozbase/mozgeckoprofiler/tests/test_view_gecko_profiler.py b/testing/mozbase/mozgeckoprofiler/tests/test_view_gecko_profiler.py
new file mode 100644
index 0000000000..76dd0f4594
--- /dev/null
+++ b/testing/mozbase/mozgeckoprofiler/tests/test_view_gecko_profiler.py
@@ -0,0 +1,105 @@
+#!/usr/bin/env python
+
+import io
+import os
+import re
+import shutil
+import tempfile
+import threading
+import time
+import unittest
+from unittest import mock
+
+import mozunit
+import requests
+import six
+from mozgeckoprofiler import view_gecko_profile
+
+if six.PY2:
+    # Import for Python 2
+    from urllib import unquote
+else:
+    # Import for Python 3
+    from urllib.parse import unquote
+
+
+def access_profiler_link(file_url, response):
+    """Attempts to access the profile in a loop for 5 seconds.
+
+    This is run from a separate thread.
+    """
+    timeout = 5  # seconds
+    start = time.time()
+
+    while time.time() - start < timeout:
+        # Poll the server to try and get a response.
+        result = requests.get(url=file_url)
+        if result.ok:
+            # Return the text back in a list.
+            response[0] = result.text
+            return
+        time.sleep(0.1)
+
+    response[0] = "Accessing the profiler link timed out after %s seconds" % timeout
+
+
+class TestViewGeckoProfile(unittest.TestCase):
+    """Tests the opening local profiles in the Firefox Profiler."""
+
+    def setUp(self):
+        self.firefox_profiler_url = None
+        self.thread = None
+        self.response = [None]
+
+    def test_view_gecko_profile(self):
+        # Create a temporary fake performance profile.
+        temp_dir = tempfile.mkdtemp()
+        profile_path = os.path.join(temp_dir, "fakeprofile.json")
+        with io.open(profile_path, "w") as f:
+            f.write("FAKE_PROFILE")
+
+        # Mock the open_new_tab function so that we know when the view_gecko_profile
+        # function has done all of its work, and we can assert ressult of the
+        # user behavior.
+        def mocked_open_new_tab(firefox_profiler_url):
+            self.firefox_profiler_url = firefox_profiler_url
+            encoded_file_url = firefox_profiler_url.split("/")[-1]
+            decoded_file_url = unquote(encoded_file_url)
+            # Extract the actual file from the path.
+            self.thread = threading.Thread(
+                target=access_profiler_link, args=(decoded_file_url, self.response)
+            )
+            print("firefox_profiler_url %s" % firefox_profiler_url)
+            print("encoded_file_url %s" % encoded_file_url)
+            print("decoded_file_url %s" % decoded_file_url)
+            self.thread.start()
+
+        with mock.patch("webbrowser.open_new_tab", new=mocked_open_new_tab):
+            # Run the test
+            view_gecko_profile(profile_path)
+
+        self.thread.join()
+
+        # Compare the URLs, but replace the PORT value supplied, as that is dynamic.
+        expected_url = (
+            "https://profiler.firefox.com/from-url/"
+            "http%3A%2F%2F127.0.0.1%3A{PORT}%2Ffakeprofile.json"
+        )
+        actual_url = re.sub("%3A\d+%2F", "%3A{PORT}%2F", self.firefox_profiler_url)
+
+        self.assertEqual(
+            actual_url,
+            expected_url,
+            "The URL generated was correct for the Firefox Profiler.",
+        )
+        self.assertEqual(
+            self.response[0],
+            "FAKE_PROFILE",
+            "The response from the serve provided the profile contents.",
+        )
+
+        shutil.rmtree(temp_dir)
+
+
+if __name__ == "__main__":
+    mozunit.main()