Fix page loader page normalization issue (#1844)

* Add integration tests for nested componentDidMount

* Fix the page loader normalization issue.

* Fix a typo in the url.

lib/page-loader.js

@@ -19,7 +19,8 @@ export default class PageLoader {
       throw new Error('Route name should start with a "/"')
     }
 
-    return route.replace(/index$/, '')
+    if (route === '/') return route
+    return route.replace(/index$/, '').replace(/\/$/, '')
   }
 
   loadPage (route) {

test/integration/basic/lib/cdm.js

+import React, {Component} from 'react'
+
+export default class extends Component {
+  constructor (props) {
+    super(props)
+
+    this.state = {
+      mounted: false
+    }
+  }
+
+  componentDidMount () {
+    this.setState({mounted: true})
+  }
+
+  render () {
+    return <p>ComponentDidMount {this.state.mounted ? 'executed on client' : 'not executed'}.</p>
+  }
+}

test/integration/basic/pages/nested-cdm/index.js

+import CDM from '../../lib/cdm'
+export default CDM

test/integration/basic/pages/with-cdm.js

+import CDM from '../lib/cdm'
+export default CDM

test/integration/basic/test/client-navigation.js

@@ -321,5 +321,31 @@ export default (context, render) => {
         browser.close()
       })
     })
+
+    describe('with different types of urls', () => {
+      it('on normal page', async () => {
+        const browser = await webdriver(context.appPort, '/with-cdm')
+        const text = await browser.elementByCss('p').text()
+
+        expect(text).toBe('ComponentDidMount executed on client.')
+        browser.close()
+      })
+
+      it('on dir/index page ', async () => {
+        const browser = await webdriver(context.appPort, '/nested-cdm/index')
+        const text = await browser.elementByCss('p').text()
+
+        expect(text).toBe('ComponentDidMount executed on client.')
+        browser.close()
+      })
+
+      it('on dir/ page ', async () => {
+        const browser = await webdriver(context.appPort, '/nested-cdm/')
+        const text = await browser.elementByCss('p').text()
+
+        expect(text).toBe('ComponentDidMount executed on client.')
+        browser.close()
+      })
+    })
   })
 }

test/integration/basic/test/index.test.js

@@ -42,6 +42,7 @@ describe('Basic Features', () => {
       renderViaHTTP(context.appPort, '/stateful'),
       renderViaHTTP(context.appPort, '/stateless'),
       renderViaHTTP(context.appPort, '/styled-jsx'),
+      renderViaHTTP(context.appPort, '/with-cdm'),
 
       renderViaHTTP(context.appPort, '/nav'),
       renderViaHTTP(context.appPort, '/nav/about'),
@@ -49,7 +50,9 @@ describe('Basic Features', () => {
       renderViaHTTP(context.appPort, '/nav/self-reload'),
       renderViaHTTP(context.appPort, '/nav/hash-changes'),
       renderViaHTTP(context.appPort, '/nav/shallow-routing'),
-      renderViaHTTP(context.appPort, '/nav/redirect')
+      renderViaHTTP(context.appPort, '/nav/redirect'),
+
+      renderViaHTTP(context.appPort, '/nested-cdm/index')
     ])
   })
   afterAll(() => stopApp(context.server))