test: add XHRUpload test for validateStatus

packages/@uppy/xhr-upload/src/index.test.js

@@ -34,4 +34,46 @@ describe('XHRUpload', () => {
       })
     })
   })
+
+  describe('validateStatus', () => {
+    it('emit upload error under status code 200', () => {
+      nock('https://fake-endpoint.uppy.io')
+      .defaultReplyHeaders({
+        'access-control-allow-method': 'POST',
+        'access-control-allow-origin': '*'
+      })
+      .options('/').reply(200, {})
+      .post('/').reply(200, {
+        code: 40000,
+        message: 'custom upload error'
+      })
+
+      const core = new Core()
+      const validateStatus = jest.fn(function (status, responseText, response) {
+        return JSON.parse(responseText).code !== 40000
+      })
+
+      core.use(XHRUpload, {
+        id: 'XHRUpload',
+        endpoint: 'https://fake-endpoint.uppy.io',
+        some: 'option',
+        validateStatus,
+        getResponseError (responseText, xhr) {
+          return JSON.parse(responseText).message
+        }
+      })
+      core.addFile({
+        name: 'test.jpg',
+        data: new Blob([Buffer.alloc(8192)])
+      })
+
+      return core.upload().then(result => {
+        expect(validateStatus).toHaveBeenCalled()
+        expect(result.failed.length).toBeGreaterThan(0)
+        result.failed.forEach(file => {
+          expect(file.error).toEqual('custom upload error')
+        })
+      })
+    })
+  })
 })