One more test

dynamic_sampling_context_test.go

@@ -54,6 +54,7 @@ func TestDynamicSamplingContextFromTransaction(t *testing.T) {
 		input *Span
 		want  DynamicSamplingContext
 	}{
+		// Normal flow
 		{
 			input: func() *Span {
 				ctx := NewTestContext(ClientOptions{
@@ -83,6 +84,29 @@ func TestDynamicSamplingContextFromTransaction(t *testing.T) {
 				},
 			},
 		},
+		// Transaction with source url, do not include in Dynamic Sampling context
+		{
+			input: func() *Span {
+				ctx := NewTestContext(ClientOptions{
+					EnableTracing:    true,
+					TracesSampleRate: 1.0,
+					Dsn:              "http://public@example.com/sentry/1",
+					Release:          "1.0.0",
+				})
+				txn := StartTransaction(ctx, "name")
+				txn.TraceID = TraceIDFromHex("d49d9bf66f13450b81f65bc51cf49c03")
+				return txn
+			}(),
+			want: DynamicSamplingContext{
+				Frozen: true,
+				Entries: map[string]string{
+					"sample_rate": "1.0",
+					"trace_id":    "d49d9bf66f13450b81f65bc51cf49c03",
+					"public_key":  "public",
+					"release":     "1.0.0",
+				},
+			},
+		},
 	}
 
 	for _, tc := range tests {