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diff --git a/swh/loader/git/tests/test_converters.py b/swh/loader/git/tests/test_converters.py
new file mode 100644
index 0000000..cd8ee67
--- /dev/null
+++ b/swh/loader/git/tests/test_converters.py
@@ -0,0 +1,76 @@
+# Copyright (C) 2015 The Software Heritage developers
+# See the AUTHORS file at the top-level directory of this distribution
+# License: GNU General Public License version 3, or any later version
+# See top-level LICENSE file for more information
+
+import os
+import shutil
+import subprocess
+import tempfile
+import unittest
+
+from nose.tools import istest
+import pygit2
+
+import swh.loader.git.converters as converters
+from swh.core.hashutil import hex_to_hash
+
+
+class TestConverters(unittest.TestCase):
+ @classmethod
+ def setUpClass(cls):
+ super().setUpClass()
+ cls.repo_path = tempfile.mkdtemp()
+ cls.repo = pygit2.init_repository(cls.repo_path, bare=True)
+
+ fast_export = os.path.join(os.path.dirname(__file__),
+ '../../../../..',
+ 'swh-storage-testdata',
+ 'git-repos',
+ 'example-submodule.fast-export.xz')
+
+ xz = subprocess.Popen(
+ ['xzcat'],
+ stdin=open(fast_export, 'rb'),
+ stdout=subprocess.PIPE,
+ )
+
+ git = subprocess.Popen(
+ ['git', 'fast-import'],
+ stdin=xz.stdout,
+ stdout=subprocess.PIPE,
+ cwd=cls.repo_path,
+ )
+
+ # flush stdout of xz
+ xz.stdout.close()
+ git.communicate()
+
+ @classmethod
+ def tearDownClass(cls):
+ super().tearDownClass()
+
+ shutil.rmtree(cls.repo_path)
+ print(cls.repo_path)
+
+ def setUp(self):
+ super().setUp()
+
+ self.blob_id = pygit2.Oid(
+ hex='28c6f4023d65f74e3b59a2dea3c4277ed9ee07b0')
+ self.blob = {
+ 'sha1_git': self.blob_id.raw,
+ 'sha1': hex_to_hash('4850a3420a2262ff061cb296fb915430fa92301c'),
+ 'sha256': hex_to_hash('fee7c8a485a10321ad94b64135073cb5'
+ '5f22cb9f57fa2417d2adfb09d310adef'),
+ 'data': (b'[submodule "example-dependency"]\n'
+ b'\tpath = example-dependency\n'
+ b'\turl = https://github.com/githubtraining/'
+ b'example-dependency.git\n'),
+ 'length': 124,
+ }
+
+ @istest
+ def blob_to_content(self):
+ content = converters.blob_to_content(self.blob_id, self.repo)
+ self.assertEqual(self.blob, content)

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