read PID 1 environ()

Signed-off-by: Giampaolo Rodola <g.rodola@gmail.com>

1 files changed, 7 insertions, 1 deletions

diff --git a/psutil/tests/test_linux.py b/psutil/tests/test_linux.py
index 52de6e5b..a1277730 100755
--- a/psutil/tests/test_linux.py
+++ b/psutil/tests/test_linux.py
@@ -2260,11 +2260,17 @@ class TestVirtualization(PsutilTestCase):
             vm = VirtualMachineDetector()
             self.assertEqual(vm.ask_run_host_container_manager(), "podman")
 
-    def ask_run_systemd_container(self):
+    def test_ask_run_systemd_container(self):
         with mock_open_content("/run/systemd/container", "rkt"):
             vm = VirtualMachineDetector()
             self.assertEqual(vm.ask_run_systemd_container(), "rkt")
 
+    def test_ask_pid_1_environ(self):
+        with mock.patch("psutil._pslinux.Process.environ",
+                        return_value={"container": "docker"}):
+            vm = VirtualMachineDetector()
+            self.assertEqual(vm.ask_pid_1_environ(), "docker")
+
     def test_ask_sys_class_dmi(self):
         with mock_open_content("/sys/class/dmi/id/sys_vendor", "VMware"):
             vm = VirtualMachineDetector()