Missing functest case: legacy Speedgrader URL launches

tests/functional/views/basic_lti_launch_test.py

@@ -69,6 +69,16 @@ def test_db_configured_basic_lti_launch(
                 "legacy_speedgrader_assignment",
                 id="canvas url launch, with existing legacy SpeedGrader DB row",
             ),
+            param(
+                "canvas_url_legacy_speedgrader_launch_params",
+                "legacy_speedgrader_assignment",
+                id="legacy SpeedGrader canvas url launch, with existing legacy SpeedGrader DB row",
+            ),
+            param(
+                "canvas_url_legacy_speedgrader_launch_params",
+                None,
+                id="legacy SpeedGrader canvas url launch, with no DB rows",
+            ),
         ],
     )
     def test_basic_lti_launch(
@@ -321,6 +331,18 @@ def canvas_url_launch_params(self, lti_params, sign_lti_params):
             )
         )
 
+    @pytest.fixture
+    def canvas_url_legacy_speedgrader_launch_params(
+        self, canvas_url_launch_params, sign_lti_params
+    ):
+        _, post_params = canvas_url_launch_params
+        return {"learner_canvas_user_id": "USER_ID"}, sign_lti_params(
+            dict(
+                post_params,
+                resource_link_id=post_params["context_id"],
+            )
+        )
+
     @pytest.fixture
     def canvas_file_legacy_speedgrader_launch_params(
         self, canvas_file_launch_params, sign_lti_params