Merge "Add a readme with instructions on running tests"

tests/robotests/README.md

@@ -0,0 +1,24 @@
+# Running Settings Robolectric tests
+
+
+## The full suite
+```
+$ croot
+$ make RunSettingsRoboTests
+```
+
+## Running a single test class
+
+```
+$ croot
+$ make RunSettingsRoboTests ROBOTEST_FILTER=<ClassName>
+```
+
+For example:
+
+```
+make RunSettingsRoboTests ROBOTEST_FILTER=CodeInspectionTest
+```
+
+You can also use partial class name in ROBOTEST_FILTER. If the partial class name matches
+multiple file names, all of them will be executed.