2 files changed, 38 insertions, 0 deletions
diff --git a/test/helper_tools/typehints_for_options.py b/test/helper_tools/typehints_for_options.py
new file mode 100644
index 00000000..8c7d006c
--- /dev/null
+++ b/test/helper_tools/typehints_for_options.py
@@ -0,0 +1,34 @@
+import typing
+from unittest import mock
+
+from mitmproxy import proxy, options
+from mitmproxy.tools import dump, console, web
+
+
+def print_typehints(opts):
+    for name, option in sorted(opts.items()):
+        print(
+            # For Python 3.6, we can just use "{}: {}".
+            "{} = None  # type: {}".format(
+                name,
+                {
+                    int: "int",
+                    str: "str",
+                    bool: "bool",
+                    typing.Optional[str]: "Optional[str]",
+                    typing.Sequence[str]: "Sequence[str]"
+                }[option.typespec]
+            )
+        )
+
+
+if __name__ == "__main__":
+    opts = options.Options()
+    server = proxy.server.DummyServer(None)
+
+    # initialize with all three tools here to capture tool-specific options defined in addons.
+    dump.DumpMaster(opts, server)
+    with mock.patch("sys.stdout.isatty", lambda: True):
+        console.master.ConsoleMaster(opts, server)
+    web.master.WebMaster(opts, server)
+    print_typehints(opts)
diff --git a/test/mitmproxy/test_optmanager.py b/test/mitmproxy/test_optmanager.py
index 7b4ffb8b..fe72e6bb 100644
--- a/test/mitmproxy/test_optmanager.py
+++ b/test/mitmproxy/test_optmanager.py
@@ -229,6 +229,10 @@ def test_simple():
     assert "one" in TO()
 
 
+def test_items():
+    assert TO().items()
+
+
 def test_serialize():
     o = TD2()
     o.three = "set"