[web] Add tests for js/components/ContentView/ContentLoader.jsx

web/src/js/__tests__/components/ContentView/ContentLoaderSpec.js

@@ -0,0 +1,75 @@
+import React from 'react'
+import renderer from 'react-test-renderer'
+import ContentLoaderGenerator from '../../../components/ContentView/ContentLoader'
+import { TFlow } from '../../ducks/tutils'
+import TestUtils from 'react-dom/test-utils'
+import mockXMLHttpRequest from 'mock-xmlhttprequest'
+
+global.XMLHttpRequest = mockXMLHttpRequest
+
+class tComponent extends React.Component {
+    constructor(props, context){
+        super(props, context)
+    }
+    render() {
+        return (<p>foo</p>)
+    }
+}
+
+let tflow = new TFlow(),
+    ContentLoader = ContentLoaderGenerator(tComponent)
+
+describe('ContentLoader Component', () => {
+    it('should render correctly', () => {
+        let contentLoader = renderer.create(<ContentLoader flow={tflow} message={tflow.response}/>),
+            tree = contentLoader.toJSON()
+        expect(tree).toMatchSnapshot()
+    })
+
+    let contentLoader = TestUtils.renderIntoDocument(<ContentLoader flow={tflow} message={tflow.response}/>)
+
+    it('should handle updateContent', () => {
+        tflow.response.content = 'foo'
+        contentLoader.updateContent({flow: tflow, message: tflow.response})
+        expect(contentLoader.state.request).toEqual(undefined)
+        expect(contentLoader.state.content).toEqual('foo')
+        // when content length is 0 or null
+        tflow.response.contentLength = 0
+        tflow.response.content = undefined
+        contentLoader.updateContent({flow: tflow, message: tflow.response})
+        expect(contentLoader.state.request).toEqual(undefined)
+        expect(contentLoader.state.content).toEqual('')
+    })
+
+    it('should handle componentWillReceiveProps', () => {
+        contentLoader.updateContent = jest.fn()
+        contentLoader.componentWillReceiveProps({flow: tflow, message: tflow.request})
+        expect(contentLoader.updateContent).toBeCalled()
+    })
+
+    it('should handle requestComplete', () => {
+        expect(contentLoader.requestComplete(tflow.request, {})).toEqual(undefined)
+        // request == this.state.request
+        contentLoader.state.request = tflow.request
+        contentLoader.requestComplete(tflow.request, {})
+        expect(contentLoader.state.content).toEqual(tflow.request.responseText)
+        expect(contentLoader.state.request).toEqual(undefined)
+    })
+
+    it('should handle requestFailed', () => {
+        console.error = jest.fn()
+        expect(contentLoader.requestFailed(tflow.request, {})).toEqual(undefined)
+        //request == this.state.request
+        contentLoader.state.request = tflow.request
+        contentLoader.requestFailed(tflow.request, 'foo error')
+        expect(contentLoader.state.content).toEqual('Error getting content.')
+        expect(contentLoader.state.request).toEqual(undefined)
+        expect(console.error).toBeCalledWith('foo error')
+    })
+
+    it('should handle componentWillUnmount', () => {
+        contentLoader.state.request = { abort : jest.fn() }
+        contentLoader.componentWillUnmount()
+        expect(contentLoader.state.request.abort).toBeCalled()
+    })
+})

web/src/js/__tests__/components/ContentView/__snapshots__/ContentLoaderSpec.js.snap

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+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`ContentLoader Component should render correctly 1`] = `
+<div
+  className="text-center"
+>
+  <i
+    className="fa fa-spinner fa-spin"
+  />
+</div>
+`;