test: add installation test

which installs the current codebase in a venv
and runs 'import git' to test if codebase can be
installed properly.
This adds virtualenv to the test requirements

Signed-off-by: Konrad Weihmann <[email protected]>

Author: priv-kweihmann

Diff for: test-requirements.txt

@@ -2,3 +2,4 @@ ddt>=1.1.1
 coverage
 flake8
 tox
+virtualenv

Diff for: test/test_installation.py

@@ -0,0 +1,29 @@
+# This module is part of GitPython and is released under
+# the BSD License: http://www.opensource.org/licenses/bsd-license.php
+
+import os
+import subprocess
+from test.lib import TestBase
+from test.lib.helper import with_rw_directory
+
+
+class TestInstallation(TestBase):
+    def setUp_venv(self, rw_dir):
+        self.venv = rw_dir
+        subprocess.run(['virtualenv', self.venv], stdout=subprocess.PIPE)
+        self.python = os.path.join(self.venv, 'bin/python3')
+        self.pip = os.path.join(self.venv, 'bin/pip3')
+        self.sources = os.path.join(self.venv, "src")
+        self.cwd = os.path.dirname(os.path.dirname(__file__))
+        os.symlink(self.cwd, self.sources, target_is_directory=True)
+
+    @with_rw_directory
+    def test_installation(self, rw_dir):
+        self.setUp_venv(rw_dir)
+        result = subprocess.run([self.pip, 'install', '-r', 'requirements.txt'],
+                                stdout=subprocess.PIPE, cwd=self.sources)
+        self.assertEqual(0, result.returncode, msg=result.stderr or result.stdout or "Can't install requirements")
+        result = subprocess.run([self.python, 'setup.py', 'install'], stdout=subprocess.PIPE, cwd=self.sources)
+        self.assertEqual(0, result.returncode, msg=result.stderr or result.stdout or "Can't build - setup.py failed")
+        result = subprocess.run([self.python, '-c', 'import git'], stdout=subprocess.PIPE, cwd=self.sources)
+        self.assertEqual(0, result.returncode, msg=result.stderr or result.stdout or "Selftest failed")