py27 compat fixes

makefile.extra.make

@@ -7,3 +7,30 @@
 serve:
 	echo "Not Implemented"
 
+
+COMPAT_TEST_FILES = $(shell ls -1 test/*.py | awk '{ printf " compat_"$$0 }')
+
+compat_test/%.py: test/%.py
+	@mkdir -p compat_test/;
+	$(DEV_ENV)/bin/lib3to6 $< > $@.tmp;
+	mv $@.tmp $@;
+
+
+## Run pytest integration tests
+.PHONY: test_compat
+test_compat: $(COMPAT_TEST_FILES)
+	rm -rf compat_test/fixtures;
+	mkdir -p compat_test/fixtures;
+	cp -R test/fixtures compat_test/
+
+	# install the package and run the test suite against it.
+	mkdir -p build/test_wheel;
+	$(DEV_ENV_PY) setup.py bdist_wheel --dist-dir build/test_wheel;
+
+	IFS=' ' read -r -a env_paths <<< "$(CONDA_ENV_PATHS)"; \
+	for i in $${!env_paths[@]}; do \
+		env_py=$${env_paths[i]}/bin/python; \
+		$${env_py} -m pip install --upgrade build/test_wheel/*.whl; \
+		PYTHONPATH="" ENV=$${ENV-dev} \
+			$${env_py} -m pytest --verbose compat_test/; \
+	done;