tests: Add Hub tests

tests/test_hub.py

@@ -0,0 +1,54 @@
+import asyncio
+
+import pytest
+
+import not_my_board._hub as hubmodule
+import not_my_board._util as util
+
+
+@pytest.fixture(scope="function")
+def hub():
+    yield hubmodule.Hub()
+
+
+async def test_no_places_on_startup(hub):
+    places = await hub.get_places()
+    assert places["places"] == []
+
+
+async def test_register_exporter(hub):
+    class FakeExporter:
+        def __init__(self, register_event):
+            self._register_event = register_event
+
+        async def io_loop(self):
+            # wait forever
+            await asyncio.Event().wait()
+
+        async def get_place(self):
+            self._register_event.set()
+            return {
+                "port": 1234,
+                "parts": [
+                    {
+                        "compatible": "test-board",
+                        "tcp": {
+                            "test-if": {
+                                "host": "localhost",
+                                "port": 8080,
+                            },
+                        },
+                    },
+                ],
+            }
+
+    exporter_ip = "1.1.1.3"
+    register_event = asyncio.Event()
+    fake_exporter = FakeExporter(register_event)
+    coro = hub.exporter_communicate(exporter_ip, fake_exporter)
+    async with util.background_task(coro):
+        async with asyncio.timeout(2):
+            await register_event.wait()
+
+        places = await hub.get_places()
+        assert len(places["places"]) == 1