Test for datasette plugin registration, refs #4

tests/test_datasette_plugin.py

@@ -0,0 +1,23 @@
+from click.testing import CliRunner
+from datasette.app import Datasette
+from datasette.cli import cli
+import pytest
+
+
+def test_plugin_help():
+    runner = CliRunner()
+    result = runner.invoke(cli, ["client", "--help"])
+    assert result.exit_code == 0
+    assert "Usage: cli client" in result.output
+    bits = result.output.split("Commands:")
+    assert "alias" in bits[1]
+    assert "query" in bits[1]
+
+
+@pytest.mark.asyncio
+async def test_plugin_installed():
+    ds = Datasette(memory=True)
+    await ds.invoke_startup()
+    response = await ds.client.get("/-/plugins.json")
+    assert response.status_code == 200
+    assert any(p["name"] == "dclient" for p in response.json())