1 files changed, 63 insertions, 0 deletions
diff --git a/dom/media/test/test_eme_special_key_system.html b/dom/media/test/test_eme_special_key_system.html
new file mode 100644
index 0000000000..0addc06ebc
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+++ b/dom/media/test/test_eme_special_key_system.html
@@ -0,0 +1,63 @@
+<!DOCTYPE html>
+<html>
+<head>
+  <title>Test Encrypted Media Extensions - Special key system</title>
+  <script src="/tests/SimpleTest/SimpleTest.js"></script>
+  <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" />
+</head>
+<body>
+<pre id="test">
+<script class="testbody" type="text/javascript">
+function requestProtectionQueryKeySystemAccess() {
+  const kKeySystemOptions = [
+    {
+      initDataTypes: ["cenc"],
+      videoCapabilities: [{ contentType: 'video/mp4; codecs="avc1.4d4015"' }],
+    },
+  ];
+  const kClearKeyWithProtectionQuery =
+    "org.mozilla.clearkey_with_protection_query";
+  return navigator.requestMediaKeySystemAccess(
+    kClearKeyWithProtectionQuery,
+    kKeySystemOptions
+  );
+}
+// Tests that org.mozilla.clearkey_with_protection_query cannot be accessed from JS if not preffed on.
+add_task(async function protectionQueryKeySystemShouldBeHidden() {
+  try {
+    // Should throw since special key systems are not enabled.
+    await requestProtectionQueryKeySystemAccess();
+    ok(
+      false,
+      "Test should have thrown by default because media.clearkey.test-key-systems.enabled should not be set"
+    );
+  } catch (e) {
+    is(e.name, "NotSupportedError", "Should get not supported error");
+    is(
+      e.message,
+      "Key system is unsupported",
+      "Should get message that key system is unsupported"
+    );
+  }
+});
+
+// Tests that org.mozilla.clearkey_with_protection_query can be accessed from JS if preffed on.
+add_task(async function protectionQueryKeySystemShouldBeExposed() {
+  await SpecialPowers.pushPrefEnv({
+    set: [["media.clearkey.test-key-systems.enabled", true]],
+  });
+  try {
+    // Should not throw since special key systems are enabled.
+    let access = await requestProtectionQueryKeySystemAccess();
+    ok(
+      access,
+      "Should get access to protection query key system when preffed on"
+    );
+  } catch (e) {
+    ok(false, "Test should not have thrown and key system should be available");
+  }
+});
+</script>
+</pre>
+</body>
+</html>