feat($sniffer): basic implementation of browser feature testing

This only extracts our 'hashchange' event and html5 history api detection from
$browser.

Closes #400

1 files changed, 38 insertions, 0 deletions

diff --git a/test/service/snifferSpec.js b/test/service/snifferSpec.js
new file mode 100644
index 00000000..72c32046
--- /dev/null
+++ b/test/service/snifferSpec.js
@@ -0,0 +1,38 @@
+'use strict';
+
+describe('$sniffer', function() {
+
+  function sniffer($window) {
+    return angular.service('$sniffer')($window);
+  }
+
+  describe('history', function() {
+    it('should be true if history.pushState defined', function() {
+      expect(sniffer({history: {pushState: noop, replaceState: noop}}).history).toBe(true);
+    });
+
+    it('should be false if history or pushState not defined', function() {
+      expect(sniffer({history: {}}).history).toBe(false);
+      expect(sniffer({}).history).toBe(false);
+    });
+  });
+
+  describe('hashchange', function() {
+    it('should be true if onhashchange property defined', function() {
+      expect(sniffer({onhashchange: true, document: {}}).hashchange).toBe(true);
+    });
+
+    it('should be false if onhashchange property not defined', function() {
+      expect(sniffer({document: {}}).hashchange).toBe(false);
+    });
+
+    it('should be false if documentMode is 7 (IE8 comp mode)', function() {
+      expect(sniffer({onhashchange: true, document: {documentMode: 7}}).hashchange).toBe(false);
+    });
+  });
+
+  it('should use Modernizr if defined', function() {
+    var Modernizr = {};
+    expect(sniffer({Modernizr: Modernizr})).toBe(Modernizr);
+  });
+});