1 files changed, 30 insertions, 0 deletions
diff --git a/browser/components/resistfingerprinting/test/browser/file_workerNetInfo.js b/browser/components/resistfingerprinting/test/browser/file_workerNetInfo.js
new file mode 100644
index 0000000000..2d21fa6f5e
--- /dev/null
+++ b/browser/components/resistfingerprinting/test/browser/file_workerNetInfo.js
@@ -0,0 +1,30 @@
+function ok(a, msg) {
+  postMessage({ type: "status", status: !!a, msg });
+}
+
+function is(a, b, msg) {
+  ok(a === b, msg);
+}
+
+function finish() {
+  postMessage({ type: "finish" });
+}
+
+function runTests() {
+  ok("connection" in navigator, "navigator.connection should exist");
+  is(
+    navigator.connection.type,
+    "unknown",
+    "The connection type is spoofed correctly"
+  );
+
+  finish();
+}
+
+self.onmessage = function (e) {
+  if (e.data.type === "runTests") {
+    runTests();
+  } else {
+    ok(false, "Unknown message type");
+  }
+};