make setPath always async

test-utils/tests/index.html

@@ -13,6 +13,7 @@
 		<script src="../../test-utils/pushStateMock.js"></script>
 		<script src="../../test-utils/xhrMock.js"></script>
 		<script src="../../test-utils/domMock.js"></script>
+		<script src="test-callAsync.js"></script>
 		<script src="test-parseURL.js"></script>
 		<script src="test-pushStateMock.js"></script>
 		<script src="test-xhrMock.js"></script>

test-utils/tests/test-callAsync.js

@@ -0,0 +1,25 @@
+"use strict"
+
+var o = require("../../ospec/ospec")
+var callAsync = require("../../test-utils/callAsync")
+
+o.spec("callAsync", function() {
+	o("works", function(done) {
+		var count = 0
+		callAsync(function() {
+			o(count).equals(1)
+			done()
+		})
+		count++
+	})
+	o("gets called before setTimeout", function(done) {
+		var timeout
+		callAsync(function() {
+			clearTimeout(timeout)
+			done()
+		})
+		timeout = setTimeout(function() {
+			throw new Error("callAsync was called too slow")
+		}, 0)
+	})
+})