tests: update README

tests/README.md

@@ -6,10 +6,19 @@ These tests are doing a simple read/write operations on the device to see if the
 
 ## Device tests
 
-Device tests are integration tests that can be run against either emulator or on an actual device. The Debug mode is required. These tests can be run against both Model One and Model T.
+Device tests are integration tests that can be run against either emulator or on an actual device. 
+You are responsible to provide either an emulator or a device with Debug mode present.
+
+### Device tests
+
+The original version of device tests. These tests can be run against both Model One and Model T.
 
 See the [README](device_tests/README.md) for instructions how to run it.
 
+### Click tests
+
+Click tests are a next-generation of the Device tests. The tests are quite similar, but they are capable of imitating user's interaction with the screen.
+
 ## Fido tests
 
 Implement U2F/FIDO2 tests.
@@ -19,3 +28,7 @@ Implement U2F/FIDO2 tests.
 These tests test upgrade from one firmware version to another. They initialize an emulator on some specific version and then pass its storage to another version to see if the firmware operates as expected. They use fixtures from https://firmware.corp.sldev.cz/upgrade_tests/ which can be downloaded using the `download_emulators.sh` script.
 
 See the [README](upgrade_tests/README.md) for instructions how to run it.
+
+## Persistence tests
+
+These tests test the Persistence mode, which is currently used in the device recovery. These tests launch the emulator themselves and they are capable of restarting or stopping it simulating user's plugging in or plugging out the device.