-Individual non-Python tests can be run via "./wvtest run t/TEST" and
-if you'd like to see all of the test output, you can omit the wvtest
-run wrapper: "t/TEST"
+Individual non-Python tests can be run via
+
+ ./wvtest run test/ext/TEST
+
+and if you'd like to see all of the test output, you can omit the
+wvtest run wrapper: `test/ext/TEST`. Individual Python tests can be
+run via
+
+ ./pytest test/int/test_something.py
+
+Internal tests that test bup's code directly are located in test/int,
+and external tests that test bup from the outside, typically by
+running the executable, are located in test/ext.