1 files changed, 54 insertions, 0 deletions
diff --git a/lib/portage/tests/gpkg/test_gpkg_size.py b/lib/portage/tests/gpkg/test_gpkg_size.py
new file mode 100644
index 000000000..9a4ff0574
--- /dev/null
+++ b/lib/portage/tests/gpkg/test_gpkg_size.py
@@ -0,0 +1,54 @@
+# Copyright Gentoo Foundation 2006-2020
+# Portage Unit Testing Functionality
+
+import tempfile
+import tarfile
+
+from portage import os, shutil
+from portage.tests import TestCase
+from portage.tests.resolver.ResolverPlayground import ResolverPlayground
+from portage.gpkg import gpkg
+
+
+class test_gpkg_large_size_case(TestCase):
+    def test_gpkg_large_size(self):
+        playground = ResolverPlayground(
+            user_config={
+                "make.conf": ('BINPKG_COMPRESS="gzip"',),
+            }
+        )
+        tmpdir = tempfile.mkdtemp()
+
+        try:
+            settings = playground.settings
+
+            orig_full_path = os.path.join(tmpdir, "orig/")
+            os.makedirs(orig_full_path)
+            # Check if filesystem support sparse file
+            with open(os.path.join(orig_full_path, "test"), "wb") as test_file:
+                test_file.truncate(1048576)
+
+            if os.stat(os.path.join(orig_full_path, "test")).st_blocks != 0:
+                self.skipTest("Filesystem does not support sparse file")
+
+            with open(os.path.join(orig_full_path, "test"), "wb") as test_file:
+                test_file.truncate(10737418240)
+
+            gpkg_file_loc = os.path.join(tmpdir, "test.gpkg.tar")
+            test_gpkg = gpkg(settings, "test", gpkg_file_loc)
+
+            check_result = test_gpkg._check_pre_image_files(
+                os.path.join(tmpdir, "orig")
+            )
+            self.assertEqual(check_result, (0, 4, 0, 10737418240, 10737418240))
+
+            test_gpkg.compress(os.path.join(tmpdir, "orig"), {"meta": "test"})
+
+            with open(gpkg_file_loc, "rb") as container:
+                # container
+                self.assertEqual(
+                    test_gpkg._get_tar_format(container), tarfile.GNU_FORMAT
+                )
+        finally:
+            shutil.rmtree(tmpdir)
+            playground.cleanup()