Add tests for tool icon endpoint handling simple and toolshed tool IDs

        assert output["label"] == "Duplicate List"

        assert output["inherit_format"] is True

    def test_tool_icon_endpoint_with_simple_id(self):

        response = self._get("tools/simple_tool_id/icon")

        self._assert_status_code_is(response, 404)

    def test_tool_icon_endpoint_with_toolshed_id(self):

        # Test complex toolshed tool ID with slashes

        toolshed_tool_id = "toolshed.g2.bx.psu.edu/repos/devteam/fastqc/fastqc/0.74+galaxy0"

        response = self._get(f"tools/{toolshed_tool_id}/icon")

        # We expect either 200 (if tool is installed and has icon) or 404 (if

        # not found), but this tests the routing either way.

        assert response.status_code in [200, 404]

        if response.status_code == 200:

            assert response.headers["Content-Type"] == "image/png"

    @skip_without_tool("test_data_source")

    def test_data_source_build_request(self):

        with self.dataset_populator.test_history() as history_id: