Testing on Android: it should be possible to pass environment variables down to the device

Problem

Android does not respect the custom test timeout that CMake sets with the environment variable QTEST_FUNCTION_TIMEOUT.

Suggested solution

In order to send a test with custom arguments to the (emulated) device, androidtestrunner executes:

adb shell am start -e applicationArguments "whatever args we need"

The key-value pair applicationArguments is then parsed by QtLoader.java:

String parameters = intent.getStringExtra("applicationArguments");

By the same logic we should be able to send custom environment variables, by doing for example:

adb shell am start -e applicationArguments "arg1 arg2" -e environmentVariables "VAR1=blah VAR2=blue"