Add unit tests for query_parameter_as_list

test/unit/webapps/test_query_params_lists.py

@@ -0,0 +1,56 @@
+from typing import List
+
+from fastapi.applications import FastAPI
+from fastapi.param_functions import (
+    Depends,
+    Query,
+)
+from fastapi.testclient import TestClient
+
+from galaxy.webapps.galaxy.api.common import query_parameter_as_list
+
+app = FastAPI()
+
+client = TestClient(app)
+
+
+@app.get("/test/get_value_as_list")
+async def get_value_as_list(
+    values: List[str] = Depends(query_parameter_as_list(Query(alias="value"))),
+):
+    return values
+
+
+def test_single_value():
+    query_params = "value=val"
+    result = _get_result_for_params(query_params)
+    assert len(result) == 1
+    assert result[0] == "val"
+
+
+def test_list_as_comma_separated_values():
+    query_params = "value=val1,val2,val3"
+    result = _get_result_for_params(query_params)
+
+    assert len(result) == 3
+    assert result[0] == "val1"
+    assert result[1] == "val2"
+    assert result[2] == "val3"
+
+
+def test_list_as_multiple_query_entries():
+    query_params = "value=val1&value=val2&value=val3"
+    result = _get_result_for_params(query_params)
+
+    assert len(result) == 3
+    assert result[0] == "val1"
+    assert result[1] == "val2"
+    assert result[2] == "val3"
+
+
+def _get_result_for_params(query_params: str):
+    response = client.get(f"/test/get_value_as_list?{query_params}")
+
+    assert response.status_code == 200
+    result = response.json()
+    return result