Jest mocks have their paths specified incorrectly

[no23reason]

Description

After the Jest mock files introduced in #303 the tests fail on our VSTS Hosted build agent with the following error:

Validation Error:
Module .\node_modules\appcenter\test\AppCenterMock.js in the setupFiles option was not found.
<rootDir> is: D:_work\1\s\src\CustomerDesk.MobileApp
Configuration Documentation:
https://facebook.github.io/jest/docs/configuration.html

The problem seems to be in the path specification of the mock files that is added during the installation into the package.json by appcenter:

"jest": {
    "setupFiles": [
      "./node_modules/appcenter/test/AppCenterMock.js",
      "./node_modules/appcenter-analytics/test/AppCenterAnalyticsMock.js",
      "./node_modules/appcenter-crashes/test/AppCenterCrashesMock.js"
    ]
  },

If I patch the file using sed right after the installation finishes (and before we run the tests) to look like this:

"jest": {
    "setupFiles": [
      "<rootDir>/node_modules/appcenter/test/AppCenterMock.js",
      "<rootDir>/node_modules/appcenter-analytics/test/AppCenterAnalyticsMock.js",
      "<rootDir>/node_modules/appcenter-crashes/test/AppCenterCrashesMock.js"
    ]
  },

everything works fine. Could the file specifications use the <rootDir> by default to ensure this works everywhere?

Details

1. Which SDK version are you using?
   • 1.6.0
2. Which OS version did you experience the issue on?
   • Windows (specifically Hosted VS2017 VSTS build agent)
3. What device version did you see this error on? Were you using an emulator or a physical device?
   • N/A
4. What third party libraries are you using?
   • jest
5. Run the following command and paste the output below: react-native info

Environment:
OS: Windows 10
Node: 10.0.0
Yarn: 1.6.0
npm: 5.6.0
Watchman: Not Found
Xcode: N/A
Android Studio: Not Found

Packages: (wanted => installed)
react: 16.3.1 => 16.3.1
react-native: 0.55.4 => 0.55.4

6. If you're developing for React Native iOS, run the following command and paste the output below: pod --version
   N/A

7. Please enable verbose logging for your app using [MSAppCenter setLogLevel: MSLogLevelVerbose]; before your call to [AppCenterReactNative register]; (or any other SDK registration). For Android, use AppCenter.setLogLevel(android.util.Log.VERBOSE); before your SoLoader.init call. Include the logs here:
   N/A, it is a build issue

[dhei]

Hey @no23reason,

This issue has been fixed in #340 and it is now released in v1.7.0 of this SDK. Thanks for reporting this issue to us, we really appreciate it. I am closing this issue now.