Issue #40 Add unit tests for the state and mutations for loading in t…

…he store

tests/unit/store/store.spec.js

@@ -28,5 +28,23 @@ describe('store', () => {
       store.dispatch('removeAlert', 'my-alert');
       expect(store.state.alerts.length).to.equal(1);
     });
-  })
+  });
+  describe('loading', () => {
+    it('should start with loading false', () => {
+      expect(store.state.isLoading).to.equal(false);
+      expect(store.state.refCount).to.equal(0);
+    });
+    it('should update refCount correctly', () => {
+      expect(store.state.refCount).to.equal(0);
+      store.dispatch('setLoading', true);
+      store.dispatch('setLoading', true);
+      expect(store.state.refCount).to.equal(2);
+      store.dispatch('setLoading', false);
+      expect(store.state.refCount).to.equal(1);
+      store.dispatch('setLoading', false);
+      expect(store.state.refCount).to.equal(0);
+      store.dispatch('setLoading', false);
+      expect(store.state.refCount).to.equal(0);
+    });
+  });
 });