address comments

Author: eleanorjboyd

src/client/testing/testController/common/projectUtils.ts

@@ -15,9 +15,9 @@ import { PytestTestExecutionAdapter } from '../pytest/pytestExecutionAdapter';
 /**
  * Separator used to scope test IDs to a specific project.
  * Format: {projectId}{SEPARATOR}{testPath}
- * Example: "file:///workspace/project||test_file.py::test_name"
+ * Example: "file:///workspace/project@@PROJECT@@test_file.py::test_name"
  */
-export const PROJECT_ID_SEPARATOR = '||';
+export const PROJECT_ID_SEPARATOR = '@@vsc@@';
 
 /**
  * Gets the project ID from a project URI.

src/client/testing/testController/common/testProjectRegistry.ts

@@ -173,7 +173,7 @@ export class TestProjectRegistry {
      * Creates a ProjectAdapter from a PythonProject.
      */
     private async createProjectAdapter(pythonProject: PythonProject, workspaceUri: Uri): Promise<ProjectAdapter> {
-        const projectId = pythonProject.uri.fsPath;
+        const projectId = getProjectId(pythonProject.uri);
         traceInfo(`[test-by-project] Creating adapter for: ${pythonProject.name} at ${projectId}`);
 
         // Resolve Python environment