browser addon: start an isolated browser attached to the proxy

A simple addon that starts an instance of Chrome attached to the current
proxy. The instance is isolated in its own user data directory, and addons are
turned off.

Future work:

- I wasn't able to test the Windows executable path - a Windows dev should
confirm this for us.
- In future it would be nice to support other browsers like Firefox.

1 files changed, 20 insertions, 0 deletions

diff --git a/test/mitmproxy/addons/test_browser.py b/test/mitmproxy/addons/test_browser.py
new file mode 100644
index 00000000..d1b32186
--- /dev/null
+++ b/test/mitmproxy/addons/test_browser.py
@@ -0,0 +1,20 @@
+from unittest import mock
+
+from mitmproxy.addons import browser
+from mitmproxy.test import taddons
+
+
+def test_browser():
+    with mock.patch("subprocess.Popen") as po:
+        b = browser.Browser()
+        with taddons.context() as tctx:
+            b.start()
+            assert po.called
+            b.start()
+
+            assert not tctx.master.has_log("already running")
+            b.browser.poll = lambda: None
+            b.start()
+            assert tctx.master.has_log("already running")
+            b.done()
+            assert not b.browser