add a test suite

This is based on a suite I wrote internally at Red Hat for python-ethtool,
later modified by Braňo Náter <bnater@redhat.com>.

Author: davidmalcolm

Makefile

@@ -24,3 +24,32 @@ bz2dev: rpmdirs
 
 rpmdev: bz2dev rpmdirs
 	rpmbuild -ba --define "_topdir $(PWD)/rpm" rpm/SPECS/$(PACKAGE).spec
+
+
+build:
+	python setup.py build
+
+# Need to set PYTHONPATH appropriately when invoking this
+test:
+	python tests/parse_ifconfig.py -v
+	python -m unittest discover -v
+	valgrind --leak-check=full python tests/test_ethtool.py
+
+# As of 5f6339c432dc227e456b70c459cf6f57c6cfe7c2 I (dmalcolm) hope to have
+# fixed the memory leaks within python-ethtool itself, but I expect
+# to see a few blocks lost within libnl which appear to be caches,
+# and thus (presumably) false positives:
+# ==9163== 4,600 (80 direct, 4,520 indirect) bytes in 2 blocks are definitely lost in loss record 2,559 of 2,612
+# ==9163==    at 0x4C26F18: calloc (vg_replace_malloc.c:566)
+# ==9163==    by 0x1152C307: nl_cache_alloc (in /usr/lib64/libnl.so.1.1)
+# ==9163==    by 0x115309FC: rtnl_link_alloc_cache (in /usr/lib64/libnl.so.1.1)
+# ==9163==    by 0x1130C843: get_etherinfo (etherinfo.c:315)
+# ==9163==    by 0x1130CFD0: _ethtool_etherinfo_getter (etherinfo_obj.c:152)
+# ==9163==    by 0x4F07E90: PyEval_EvalFrameEx (ceval.c:2330)
+# ...etc...
+# ==9163== LEAK SUMMARY:
+# ==9163==    definitely lost: 160 bytes in 4 blocks
+# ==9163==    indirectly lost: 9,040 bytes in 60 blocks
+# ==9163==      possibly lost: 489,676 bytes in 3,299 blocks
+# ==9163==    still reachable: 1,277,848 bytes in 11,100 blocks
+# ==9163==         suppressed: 0 bytes in 0 blocks