1 files changed, 28 insertions, 0 deletions
diff --git a/js/xpconnect/tests/unit/test_crypto.js b/js/xpconnect/tests/unit/test_crypto.js
new file mode 100644
index 0000000000..90c0f9ed25
--- /dev/null
+++ b/js/xpconnect/tests/unit/test_crypto.js
@@ -0,0 +1,28 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+function run_test() {
+  let Cu = Components.utils;
+  let sb = new Cu.Sandbox('https://www.example.com',
+                          { wantGlobalProperties:
+                            ["crypto", "TextEncoder", "TextDecoder"]
+                          });
+  sb.ok = ok;
+  Cu.evalInSandbox('ok(this.crypto);', sb);
+  Cu.evalInSandbox('ok(this.crypto.subtle);', sb);
+  sb.do_check_eq = do_check_eq;
+  let innerPromise = new Promise(r => (sb.test_done = r));
+  Cu.evalInSandbox('crypto.subtle.digest("SHA-256", ' +
+                   '                     new TextEncoder("utf-8").encode("abc"))' +
+                   '  .then(h => do_check_eq(new Uint16Array(h)[0], 30906))' +
+                   '  .then(test_done);', sb);
+
+  Cu.importGlobalProperties(["crypto"]);
+  ok(crypto);
+  ok(crypto.subtle);
+  let outerPromise = crypto.subtle.digest("SHA-256", new TextEncoder("utf-8").encode("abc"))
+      .then(h => do_check_eq(new Uint16Array(h)[0], 30906));
+
+  do_test_pending();
+  Promise.all([innerPromise, outerPromise]).then(() => do_test_finished());
+}