in src/main/java/org/apache/sling/junit/scriptable/ExplainTests.java [29:38]
public void explain() {
fail(
"No scriptable tests found."
+ " To create scriptable tests, create nodes with the sling:Test"
+ " mixin under /apps or /libs (*), and setup Sling so that requesting them with .test.txt generates"
+ " a text response containing just TEST_PASSED if the test is successful."
+ " Empty lines and lines starting with # are ignored in the test output."
+ " (*) depends on the JCR resource resolver configuration."
);
}