Local valgrind test target

Makefile

@@ -102,6 +102,12 @@ sdist:
 test:
 	pytest -qq
 
+.PHONY: valgrind
+valgrind:
+	PYTHONMALLOC=malloc valgrind --suppressions=Tests/oss-fuzz/python.supp --leak-check=no \
+            --log-file=/tmp/valgrind-output \
+            python3 -m pytest --no-memcheck -vv --valgrind --valgrind-log=/tmp/valgrind-output
+
 .PHONY: readme
 readme:
 	python3 setup.py --long-description | markdown2 > .long-description.html && open .long-description.html

Tests/oss-fuzz/python.supp

@@ -0,0 +1,16 @@
+{
+   <py3_8_encode_current_locale>
+   Memcheck:Cond
+   ...
+   fun:encode_current_locale
+}
+
+
+{
+   <libtiff_zlib>
+   Memcheck:Cond
+   fun:inflate
+   fun:ZIPDecode
+   fun:_TIFFReadEncodedTileAndAllocBuffer
+   ...
+}

requirements.txt

@@ -9,6 +9,7 @@ pyroma
 pytest
 pytest-cov
 pytest-timeout
+pytest-valgrind
 sphinx>=2.4
 sphinx-issues
 sphinx-removed-in