1 files changed, 65 insertions, 0 deletions
diff --git a/lib/portage/tests/util/dyn_libs/test_installed_dynlibs.py b/lib/portage/tests/util/dyn_libs/test_installed_dynlibs.py
new file mode 100644
index 000000000..421dcf606
--- /dev/null
+++ b/lib/portage/tests/util/dyn_libs/test_installed_dynlibs.py
@@ -0,0 +1,65 @@
+# Copyright 2024 Gentoo Authors
+# Distributed under the terms of the GNU General Public License v2
+
+import os
+import tempfile
+
+from portage.const import BASH_BINARY
+from portage.tests import TestCase
+from portage.util import ensure_dirs
+from portage.util._dyn_libs.dyn_libs import installed_dynlibs
+from portage.util.file_copy import copyfile
+
+
+class InstalledDynlibsTestCase(TestCase):
+    def testInstalledDynlibsRegular(self):
+        """
+        Return True for *.so regular files.
+        """
+        with tempfile.TemporaryDirectory() as directory:
+            bash_copy = os.path.join(directory, "lib", "libfoo.so")
+            ensure_dirs(os.path.dirname(bash_copy))
+            copyfile(BASH_BINARY, bash_copy)
+            self.assertTrue(installed_dynlibs(directory))
+
+    def testInstalledDynlibsOnlySymlink(self):
+        """
+        If a *.so symlink is installed but does not point to a regular
+        file inside the top directory, installed_dynlibs should return
+        False (bug 921170).
+        """
+        with tempfile.TemporaryDirectory() as directory:
+            symlink_path = os.path.join(directory, "lib", "libfoo.so")
+            ensure_dirs(os.path.dirname(symlink_path))
+            os.symlink(BASH_BINARY, symlink_path)
+            self.assertFalse(installed_dynlibs(directory))
+
+    def testInstalledDynlibsSymlink(self):
+        """
+        Return True for a *.so symlink pointing to a regular file inside
+        the top directory.
+        """
+        with tempfile.TemporaryDirectory() as directory:
+            bash_copy = os.path.join(directory, BASH_BINARY.lstrip(os.sep))
+            ensure_dirs(os.path.dirname(bash_copy))
+            copyfile(BASH_BINARY, bash_copy)
+            symlink_path = os.path.join(directory, "lib", "libfoo.so")
+            ensure_dirs(os.path.dirname(symlink_path))
+            os.symlink(bash_copy, symlink_path)
+            self.assertTrue(installed_dynlibs(directory))
+
+    def testInstalledDynlibsAbsoluteSymlink(self):
+        """
+        If a *.so symlink target is outside of the top directory,
+        traversal follows the corresponding file inside the top
+        directory if it exists, and otherwise stops following the
+        symlink.
+        """
+        with tempfile.TemporaryDirectory() as directory:
+            bash_copy = os.path.join(directory, BASH_BINARY.lstrip(os.sep))
+            ensure_dirs(os.path.dirname(bash_copy))
+            copyfile(BASH_BINARY, bash_copy)
+            symlink_path = os.path.join(directory, "lib", "libfoo.so")
+            ensure_dirs(os.path.dirname(symlink_path))
+            os.symlink(BASH_BINARY, symlink_path)
+            self.assertTrue(installed_dynlibs(directory))