Distribute practracker unit and integration tests.

Makefile.am

@@ -171,7 +171,17 @@ EXTRA_DIST+= \
 	scripts/maint/practracker/exceptions.txt	\
 	scripts/maint/practracker/metrics.py		\
 	scripts/maint/practracker/practracker.py	\
+	scripts/maint/practracker/practracker_tests.py	\
 	scripts/maint/practracker/problem.py		\
+	scripts/maint/practracker/testdata/a.c		\
+	scripts/maint/practracker/testdata/b.c 		\
+	scripts/maint/practracker/testdata/ex0-expected.txt \
+	scripts/maint/practracker/testdata/ex0.txt 	\
+	scripts/maint/practracker/testdata/ex1-expected.txt \
+	scripts/maint/practracker/testdata/ex1.txt 	\
+	scripts/maint/practracker/testdata/ex.txt 	\
+	scripts/maint/practracker/testdata/not_c_file	\
+	scripts/maint/practracker/test_practracker.sh   \
 	scripts/maint/practracker/util.py
 
 ## This tells etags how to find mockable function definitions.