Setup spy to observe changes

Author: avanderhoorn

modules/__tests__/matchRoutes-test.js

@@ -291,11 +291,10 @@ describe('matchRoutes', function () {
   })
 
   describe('an asynchronous JSX route config', function () {
-    let getChildRoutes, getIndexRoute, jsxRoutes, jsxNestedRoutes, state
+    let getChildRoutes, getIndexRoute, jsxRoutes, makeJsxNestedRoutes
 
     beforeEach(function () {
       getChildRoutes = function (partialNextState, callback) {
-        state = partialNextState
         setTimeout(function () {
           callback(null, <Route path=":userID" />)
         })
@@ -313,15 +312,19 @@ describe('matchRoutes', function () {
                getChildRoutes={getChildRoutes}
                getIndexRoute={getIndexRoute} /> 
       ])
-    
-      jsxNestedRoutes = createRoutes([
-        <Route name="users"
-              path="users/:id">
-          <Route name="topic"
-                path=":topic"
-                getChildRoutes={getChildRoutes} />
-        </Route>
-      ]) 
+
+      makeJsxNestedRoutes = () => {
+        const spy = expect.spyOn({ getChildRoutes }, 'getChildRoutes').andCallThrough()
+        const routes = createRoutes([
+          <Route name="users"
+                path="users/:id">
+            <Route name="topic"
+                  path=":topic"
+                  getChildRoutes={spy} />
+          </Route>
+        ])
+        return { spy, routes }
+      }
     }) 
 
     it('when getChildRoutes callback returns reactElements', function (done) {
@@ -342,7 +345,9 @@ describe('matchRoutes', function () {
     })
 
     it('when getChildRoutes callback returns partialNextState', function (done) {
-      matchRoutes(jsxNestedRoutes, createLocation('/users/5/details/others'), function () {
+      const jsxNestedRoutes = makeJsxNestedRoutes()
+      matchRoutes(jsxNestedRoutes.routes, createLocation('/users/5/details/others'), function () {
+        const state = jsxNestedRoutes.spy.calls[0].arguments[0]
         expect(state).toExist()
         expect(state.params).toEqual({ id: '5', topic: 'details' })
         done()