Fixing failing tests

test/specs/wrapper.spec.js

@@ -30,10 +30,7 @@ describe('wrapper', function () {
     axios({
       method: 'post',
       url: '/foo',
-      data: {
-        firstName: 'foo',
-        lastName: 'bar'
-      }
+      data: 'fizz=buzz'
     });
 
     var request = jasmine.Ajax.requests.mostRecent();
@@ -45,6 +42,20 @@ describe('wrapper', function () {
     }
   });
 
+  it('should use application/json when posting an object', function () {
+    axios({
+      url: '/foo/bar',
+      method: 'post',
+      data: {
+        firstName: 'foo',
+        lastName: 'bar'
+      }
+    });
+
+    var request = jasmine.Ajax.requests.mostRecent();
+    expect(request.requestHeaders['Content-Type']).toEqual('application/json;charset=utf-8');
+  });
+
   it('should support binary data as array buffer', function () {
     var input = new Int8Array(2);
     input[0] = 1;

test/unit/utils/isX.js

@@ -19,6 +19,12 @@ module.exports = {
     test.done();
   },
 
+  testIsUndefined: function (test) {
+    test.equals(utils.isUndefined(), true);
+    test.equals(utils.isUndefined(null), false);
+    test.done();
+  },
+
   testIsObject: function (test) {
     test.equals(utils.isObject({}), true);
     test.equals(utils.isObject(null), false);