diff --git a/setup.py b/setup.py
index 79c2226..b1c1aee 100644
--- a/setup.py
+++ b/setup.py
@@ -32,6 +32,15 @@ setup(
         "console_scripts": ["dclient = dclient.cli:cli"],
     },
     install_requires=["click", "httpx", "appdirs"],
-    extras_require={"test": ["pytest", "pytest-httpx", "cogapp", "pytest-mock"]},
+    extras_require={
+        "test": [
+            "pytest",
+            "pytest-asyncio",
+            "pytest-httpx",
+            "cogapp",
+            "pytest-mock",
+            "datasette",
+        ]
+    },
     python_requires=">=3.7",
 )
diff --git a/tests/test_datasette_plugin.py b/tests/test_datasette_plugin.py
new file mode 100644
index 0000000..05d3c80
--- /dev/null
+++ b/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())