video 158 fix for failing travis build

README.md

@@ -108,3 +108,33 @@ The default.conf should now look like this:
       }
     }
 ```
+
+## Video 158 Fix for Failing Travis Builds
+
+In the upcoming lecture, we will be adding a script to our .travis.yml file. Due to a change in how the Jest library works with Create React App, we need to make a small modification:
+
+```yaml
+script:
+  - docker run USERNAME/react-test npm test -- --coverage
+```
+
+instead should be:
+
+```yaml
+script:
+  - docker run -e CI=true USERNAME/react-test npm test -- --coverage
+```
+
+You can read up on the CI=true variable here:
+
+https://facebook.github.io/create-react-app/docs/running-tests#linux-macos-bash
+
+and environment variables in Docker here:
+
+https://docs.docker.com/engine/reference/run/#env-environment-variables
+
+Additionally, you may want to set the following property if your travis build fails with “rakefile not found” by adding to the top of your .travis.yml file:
+
+```yaml
+language: generic
+```