Travis CI for testing with emulator and update jacocoTestReport to codecov

travis.yml

language: android
dist: trusty

notifications:
  email: false

jdk:
  - oraclejdk8

env:
  global:
    - ADB_INSTALL_TIMEOUT=10
    - ANDROID_API_LEVEL=28
    - ANDROID_BUILD_TOOLS_VERSION=29.0.2
    - EMU_NAME=test
    - EMU_API_LEVEL=23
    - EMU_ABI=armeabi-v7a
#    - EMU_ABI=x86

android:
  components:
      - tools
      - platform-tools
      - build-tools-$ANDROID_BUILD_TOOLS_VERSION
      - android-$ANDROID_API_LEVEL
      - android-$EMU_API_LEVEL
      - extra-android-support
      - sys-img-$EMU_ABI-google_apis-$EMU_API_LEVEL
  licenses:
      - 'android-sdk-license-.+'

before_install:
  - chmod +x gradlew
  #  https://github.com/travis-ci/travis-ci/issues/8874#issuecomment-350350607
  - yes | sdkmanager "platforms;android-$ANDROID_API_LEVEL"
  - yes | sdkmanager "platforms;android-$EMU_API_LEVEL"

before_script:
  - ./gradlew build jacocoTestReport assembleAndroidTest
  - echo no | android create avd --force -n $EMU_NAME -t android-$EMU_API_LEVEL --abi google_apis/$EMU_ABI
  # Do not remove '-no-window' from the next instruction because "Waiting for emulator to start" will return super fast
  # and then, inside 'script:', we'll receive an error because apparently there's no device ready
  - emulator -avd $EMU_NAME -no-window &
  - android-wait-for-emulator
  - adb shell input keyevent 82 &

script:
  - ./gradlew connectedCheck --stacktrace

after_success:
  - bash <(curl -s https://codecov.io/bash)

branches:
  only:
    - master