diff --git a/test/test_installation.py b/test/test_installation.py
@@ -2,6 +2,7 @@
# 3-Clause BSD License: https://opensource.org/license/bsd-3-clause/

import ast
import os
import subprocess

@@ -11,50 +12,22 @@
class TestInstallation(TestBase):
    @with_rw_directory
    def test_installation(self, rw_dir):
-        venv = self._set_up_venv(rw_dir)

-        result = subprocess.run(
-            [venv.pip, "install", "."],
-            stdout=subprocess.PIPE,
-            cwd=venv.sources,
-        )
-        self.assertEqual(
-            0,
-            result.returncode,
-            msg=result.stderr or result.stdout or "Can't install project",
-        )

-        result = subprocess.run(
-            [venv.python, "-c", "import git"],
-            stdout=subprocess.PIPE,
-            cwd=venv.sources,
-        )
-        self.assertEqual(
-            0,
-            result.returncode,
-            msg=result.stderr or result.stdout or "Self-test failed",
-        )

-        result = subprocess.run(
-            [venv.python, "-c", "import gitdb; import smmap"],
-            stdout=subprocess.PIPE,
-            cwd=venv.sources,
-        )
-        self.assertEqual(
-            0,
-            result.returncode,
-            msg=result.stderr or result.stdout or "Dependencies not installed",
-        )

        # Even IF gitdb or any other dependency is supplied during development by
        # inserting its location into PYTHONPATH or otherwise patched into sys.path,
        # make sure it is not wrongly inserted as the *first* entry.
-        result = subprocess.run(
-            [venv.python, "-c", "import sys; import git; print(sys.path)"],
-            stdout=subprocess.PIPE,
-            cwd=venv.sources,
-        )
-        syspath = result.stdout.decode("utf-8").splitlines()[0]
        syspath = ast.literal_eval(syspath)
        self.assertEqual(
            "",
@@ -64,10 +37,37 @@ def test_installation(self, rw_dir):

    @staticmethod
    def _set_up_venv(rw_dir):
        venv = VirtualEnvironment(rw_dir, with_pip=True)
        os.symlink(
            os.path.dirname(os.path.dirname(__file__)),
            venv.sources,
            target_is_directory=True,
        )
-        return venv