test: Add test for get_baggage with DSN

Author: Lms24

tests/test_api.py

@@ -96,6 +96,15 @@ def test_baggage_with_tracing_enabled(sentry_init):
         assert re.match(expected_baggage_re, get_baggage())
 
 
+def test_baggage_with_dsn(sentry_init):
+    sentry_init(dsn="http://97333d956c9e40989a0139756c121c34@sentry-x.sentry-y.s.c.local/976543210", traces_sample_rate=1.0, release="2.0.0", environment="dev")
+    with start_transaction() as transaction:
+        expected_baggage_re = r"^sentry-trace_id={},sentry-sample_rand=0\.\d{{6}},sentry-environment=dev,sentry-release=2\.0\.0,sentry-sample_rate=1\.0,sentry-sampled={},sentry-public_key=97333d956c9e40989a0139756c121c34$".format(
+            transaction.trace_id, "true" if transaction.sampled else "false"
+        )
+        print('xx received baggage', get_baggage() )
+        assert re.match(expected_baggage_re, get_baggage())
+
 def test_continue_trace(sentry_init):
     sentry_init()