Add a basic test suit

test/test_basics.py

@@ -0,0 +1,51 @@
+from .mpris import setup_buses
+from .playerctl import playerctl
+
+import asyncio
+import pytest
+
+
+@pytest.mark.asyncio
+async def test_basics():
+    result = await playerctl('--help')
+    assert result.ret == 0, result.stderr
+    assert result.stdout
+    assert not result.stderr
+
+    # with no players
+    result = await playerctl('--list-all')
+    assert result.ret == 0, result.stderr
+    assert not result.stdout
+    assert result.stderr
+
+    result = await playerctl('--version')
+    assert result.ret == 0, result.stderr
+    assert result.stdout
+    assert not result.stderr
+
+    commands = ('play', 'pause', 'play-pause', 'stop', 'next', 'previous',
+                'position', 'position 5', 'volume', 'volume 0.5', 'status',
+                'metadata', 'loop', 'loop None', 'shuffle', 'shuffle On',
+                'open https://google.com')
+
+    results = await asyncio.gather(*(playerctl(cmd) for cmd in commands))
+
+    for result in results:
+        assert result.ret == 1
+        assert not result.stdout
+        assert result.stderr == 'No players found'
+
+
+@pytest.mark.asyncio
+async def test_list_names():
+    [bus1, bus2, bus3] = await setup_buses('basics1', 'basics2', 'basics3')
+
+    result = await playerctl('--list-all')
+    assert result.ret == 0, result.stderr
+    players = result.stdout.splitlines()
+    assert 'basics1' in players
+    assert 'basics2' in players
+    assert 'basics3' in players
+
+    for bus in [bus1, bus2, bus3]:
+        bus.disconnect()