Rewrite EmergencyListPreferenceTest as unit/robolectric tests.

The instrumentation test runner is deprecated.
Rewriting the tests paves the way to migrating to the support library,
which the new UX relies on.

Bug: 30046624
Test: runtest --path packages/apps/EmergencyInfo/tests
Change-Id: Ieb8f65f6ac6efe49002471be76caa7eabcd3d8de
8 files changed
tree: 4d61ad9b69c033fac456c004a092843cc973283f
  1. res/
  2. src/
  3. tests/
  4. Android.mk
  5. AndroidManifest.xml
  6. proguard.flags