Spanish instrumentation testing

[brianjcoan]

What type of PR is this? (check all applicable)

• Refactor
• Feature
• Bug Fix
• Optimization

Description

Enable running the instrumentation tests in Spanish, either by explicitly setting the app locale via CLI argument,
or simply running the emulator/device with a Spanish system-wide locale setting and the test detects same.
Created a BaseIntegrationTest that all tests inherit, both for this locale work but also pulling out setup and
methods that are generally useful.

Related Issues

• Related Issue #
• Closes #

Were the changes tested?

• Yes, automated tests in ALL
• Yes, manually tested: please provide steps performed to test changes
• No, and this is why: please replace this line with details on why tests
  have not been included
• I need help with writing tests

Tests:

1. Emulator in US English locale, ./gradlew :app:connectedAndroidTest
2. Emulator in US Spanish locale, ./gradlew :app:connectedAndroidTest
3. Emulator system locale irrelevant, ./gradlew :app:connectedAndroidTest -Pandroid.testInstrumentationRunnerArguments.locale=en-US
4. Emulator system locale irrelevant,./gradlew :app:connectedAndroidTest -Pandroid.testInstrumentationRunnerArguments.locale=es-US

N.B. run as a batch, instrumentation tests can still be flaky, but individually are all green

[dektar]

Could you explain the value of having integration testing in Spanish? As long as we keep the strings in strings.xml, I trust Android to swap in the right language when needed.