Add test to verify that `call` rejects if `postMessage` throws

ab788ee7 · Robert Knight · b6f3ba5b · ab788ee7
Commit ab788ee7 authored Sep 14, 2018 by Robert Knight
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postmessage-json-rpc-test.js src/sidebar/util/test/postmessage-json-rpc-test.js +8 -0

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--- a/src/sidebar/util/test/postmessage-json-rpc-test.js
+++ b/src/sidebar/util/test/postmessage-json-rpc-test.js
@@ -53,6 +53,14 @@ describe('sidebar.util.postmessage-json-rpc', () => {
      });
    });

+    it('rejects if `postMessage` fails', () => {
+      frame.postMessage.throws(new Error('Nope!'));
+
+      const result = doCall();
+
+      assertPromiseIsRejected(result, 'Nope!');
+    });
+
    [{
      // Wrong origin.
      origin: 'https://not-the-embedder.com',