Trying to set environ variable some other way

repos/c2sm/packages/py-icon4py/package.py

@@ -47,14 +47,20 @@ def patch(self):
 
     # cmake in unit-tests needs this path
     def setup_build_environment(self, env):
+        """Wrapper until spack has a real implementation of setup_test_environment()"""
+        if self.run_tests:
+            self.setup_test_environment(env)
+
         env.set("CMAKE_INCLUDE_PATH", self.spec['boost'].prefix.include)
 
+    def setup_test_environment(self, env):
+        """Configure the regression test suite like Debian's openssh-tests package"""
+        env.set("GT4PY_BUILD_CACHE_DIR", self.build_directory)
+
     def test(self):
         # check if all installed module can be imported
         super().test()
         # unit tests
-        os.environ['GT4PY_BUILD_CACHE_DIR'] = self.build_directory
-
         python('-m', 'pytest', '-v', '-s', '-n', 'auto', '-m',
                'not slow_tests')