CDRIVER-3329 fix error label check

Author: kevinAlbs

src/libmongoc/src/mongoc/mongoc-change-stream.c

@@ -46,7 +46,7 @@ _is_resumable_error (const bson_t *reply)
       return true;
    }
 
-   if (mongoc_error_has_label (reply, "NonRetryableChangeStreamError")) {
+   if (mongoc_error_has_label (reply, "NonResumableChangeStreamError")) {
       return false;
    }
 

src/libmongoc/tests/test-mongoc-change-stream.c

@@ -691,6 +691,19 @@ test_getmore_errors (void)
    _test_getmore_error ("{'ok': 0, 'errmsg': 'random error'}",
                         false /* should_resume */,
                         false /* resume_kills_cursor */);
+   /* An error with a 'NonResumableChangeStreamError' label should not attempt
+    * to resume. */
+   _test_getmore_error (
+      "{'ok': 0, 'code': 280, 'errorLabels': "
+      "['NonResumableChangeStreamError'], 'errmsg': 'random error'}",
+      false /* should_resume */,
+      false /* resume_kills_cursor */);
+   /* But other error labels should resume. */
+   _test_getmore_error (
+      "{'ok': 0, 'code': 280, 'errorLabels': "
+      "['NonRetryableChangeStreamError'], 'errmsg': 'random error'}",
+      true /* should_resume */,
+      true /* resume_kills_cursor */);
 }
 /* From Change Streams Spec tests:
  * "ChangeStream will automatically resume one time on a resumable error