1 files changed, 46 insertions, 0 deletions
diff --git a/lib/portage/tests/process/test_spawn_warn_large_env.py b/lib/portage/tests/process/test_spawn_warn_large_env.py
new file mode 100644
index 000000000..185344881
--- /dev/null
+++ b/lib/portage/tests/process/test_spawn_warn_large_env.py
@@ -0,0 +1,46 @@
+# Copyright 2023 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+import platform
+import tempfile
+
+from pathlib import Path
+
+import portage.process
+
+from portage import shutil
+from portage.tests import TestCase
+
+
+class SpawnWarnLargeEnvTestCase(TestCase):
+    def testSpawnWarnLargeEnv(self):
+        if platform.system() != "Linux":
+            self.skipTest("not Linux")
+
+        env = dict()
+        env["LARGE_ENV_VAR"] = "X" * 1024 * 96
+
+        tmpdir = tempfile.mkdtemp()
+        previous_env_too_large_warnings = portage.process.env_too_large_warnings
+        try:
+            logfile = tmpdir / Path("logfile")
+            echo_output = "This is an echo process with a large env"
+            retval = portage.process.spawn(
+                ["echo", echo_output],
+                env=env,
+                logfile=logfile,
+                warn_on_large_env=True,
+            )
+
+            with open(logfile) as f:
+                logfile_content = f.read()
+                self.assertIn(
+                    echo_output,
+                    logfile_content,
+                )
+            self.assertTrue(
+                portage.process.env_too_large_warnings > previous_env_too_large_warnings
+            )
+            self.assertEqual(retval, 0)
+        finally:
+            shutil.rmtree(tmpdir)