Fix test to account for duplicated string_at

Author: gyuheon0h

runtime_stacks_quick_test.py

@@ -1,4 +1,3 @@
-#!/usr/bin/env python3
 """
 Test script to verify Echion-based stack walking in crashtracker.
 

tests/internal/crashtracker/test_crashtracker.py

@@ -458,6 +458,7 @@ def test_crashtracker_tags_required():
 
 @pytest.mark.skipif(not sys.platform.startswith("linux"), reason="Linux only")
 def test_crashtracker_runtime_stacktrace_required(run_python_code_in_subprocess):
+    import json
     with utils.with_test_agent() as client:
         env = os.environ.copy()
         env["DD_CRASHTRACKING_EMIT_RUNTIME_STACKS"] = "true"
@@ -473,12 +474,13 @@ def test_crashtracker_runtime_stacktrace_required(run_python_code_in_subprocess)
 
         # Check for crash report
         report = utils.get_crash_report(client)
-        assert b"stacktrace_string" in report["body"]
 
-        version = sys.version_info[:2]
-        # Runtime stacktrace is available only on Python 3.11 and 3.12
-        expected = b"in string_at" if (3, 11) <= version <= (3, 12) else b"<python_runtime_stacktrace_unavailable>"
-        assert expected in report["body"], report["body"]
+        # We should get the experimental field because `string_at` is in both the
+        # native frames stacktrace and experimental runtime_stacks field
+        body = json.loads(report["body"])
+        message = json.loads(body["payload"][0]["message"])
+        assert "string_at" in json.dumps(message["experimental"])
+
 
 
 @pytest.mark.skipif(not sys.platform.startswith("linux"), reason="Linux only")