feat: sensical user invitation

Users can now be invited to an org by email.

"Email" for now is "print to stdout"

Resolves #12

test/test_user.py

@@ -52,3 +52,53 @@ async def test_delete_user_success(default_client: AsyncClient):
 	resp = await default_client.delete("/user/?user_id=1")
 
 	assert resp.status_code == 204
+
+
+@pytest.mark.anyio
+async def test_post_user_invitation_success(default_client: AsyncClient):
+	body = {"user_email": "admin@test.com", "organisation_id": 1}
+	resp = await default_client.post("/user/invitation", json=body)
+
+	assert resp.status_code == 200
+	assert resp.json() == "Invitation sent"
+
+
+@pytest.mark.parametrize(
+	"body, expected_status",
+	[
+		({"organisation_id": 42, "user_email": "admin@test.com"}, 404),
+		({"organisation_id": "Test Org", "user_email": "admin@test.com"}, 422),
+		({"organisation_id": "", "user_email": "admin@test.com"}, 422),
+		({}, 422),
+		({"user_email": 42}, 422),
+		({"organisation_id": 1, "user_email": "Test User"}, 422),
+	],
+)
+@pytest.mark.anyio
+async def test_post_user_invitation_status_checks(
+	default_client: AsyncClient, body, expected_status
+):
+	resp = await default_client.post("/user/invitation", json=body)
+
+	assert resp.status_code == expected_status
+
+
+@pytest.mark.parametrize(
+	"body, expected_status",
+	[
+		({"jwt": "invalid"}, 401),
+		({"jwt": ""}, 401),
+		({"jwt": None}, 422),
+		({"jwt": 42}, 422),
+	],
+)
+@pytest.mark.anyio
+async def test_post_user_invitation_accept_status_checks(
+	default_client: AsyncClient, body, expected_status
+):
+	resp = await default_client.post("/user/invitation/accept", json=body)
+
+	assert resp.status_code == expected_status
+
+	if resp.status_code == 401:
+		assert resp.json()["detail"] == "Invalid JWS"