run py tests from "make check"

though they fail on ubuntu 16.04 due to giflib dumbness

magickload is also failing, investigate

test/Makefile.am

@@ -1,3 +1,16 @@
+TESTS = 
+
+if ENABLE_PYVIPS8
+TESTS += \
+	test_python.sh 
+endif
+
+# don't run test_thumbnail.sh by default, it takes ages
+TESTS += \
+	test_cli.sh \
+	test_formats.sh \
+	test_seq.sh \
+	test_threading.sh 
 
 EXTRA_DIST = \
 	images \
@@ -21,14 +34,6 @@ EXTRA_DIST = \
 	test_morphology.py \
 	test_resample.py 
 
-# don't run test_thumbnail.sh by default, it takes ages
-
-TESTS = \
-	test_cli.sh \
-	test_formats.sh \
-	test_seq.sh \
-	test_threading.sh 
-
 clean-local: 
 	-rm -rf tmp-*
 	-rm -f *.pyc

test/test_python.sh

@@ -2,16 +2,26 @@
 
 # set -x
 
-# don't run this set of tests as part of make check -- some platforms do make
-# check before install and it's too hard to make pyvips8 work without
-# installation
-
 . ./variables.sh
 
-echo "testing with python2 ..."
+export GI_TYPELIB_PATH=../libvips 
 
-python2 test_all.py 
+vipslibs=../libvips/.libs
 
-echo "testing with python3 ..."
+# we want to test against the built but uninstalled libraries, so we must set
+# LD_LIBRARY_PATH or equivalent
+case `uname` in
+HPUX)
+	export SHLIB_PATH=$vipslibs
+	;;
 
-python3 test_all.py 
+Darwin)
+	export DYLD_LIBRARY_PATH=$vipslibs
+	;;
+
+*)
+	export LD_LIBRARY_PATH=$vipslibs
+	;;
+esac
+
+$PYTHON -m unittest -v test_all 

test/variables.sh.in

@@ -1,4 +1,5 @@
 top_srcdir=@TOP_SRCDIR@
+PYTHON=@PYTHON@
 # we need a different tmp for each script since make can run tests in parallel
 tmp=$top_srcdir/test/tmp-$$
 test_images=$top_srcdir/test/images