diff --git a/tests/_support.js b/tests/_support.js
new file mode 100644
index 000000000..aff343a65
--- /dev/null
+++ b/tests/_support.js
@@ -0,0 +1,24 @@
+var tape = require("tape");
+
+var protobuf = require("..");
+
+function name(fn) {
+    if (!fn)
+        return "" + fn;
+    return fn.name;
+}
+
+var ans = {};
+try {
+    Object.defineProperty(ans, "wer", {
+        get: function() {
+            return 42;
+        }
+    });
+} catch (e) {}
+
+tape.test("environment supports", function(test) {
+    test.ok(typeof Uint8Array !== "undefined", "Uint8Array");
+    test.ok(ans.wer === 42, "getters/setters");
+    test.end();
+});
\ No newline at end of file