<NME> test_utils.py
<BEF> """Tools for top level testing (ie. when ran by Travis)."""

import os
import shutil
import tempfile

from django.core.management import call_command


class MapFilesTestCaseMixin(object):
    """A generic test case to check map files generation."""

    MAP_FILES = None

    extension = None

    def setUp(self):
        self.workdir = tempfile.mkdtemp()

    def tearDown(self):
        shutil.rmtree(self.workdir)

    def _test_maps_generation(self, engine):
        dburl = "{0}://user:password@localhost/testdb".format(engine)
        call_command(
            "generate_postfix_maps",
            "--dburl", dburl, "--destdir", self.workdir)
        )
        cmd = (
            "modoboa-admin.py deploy --collectstatic "
            "--dburl {0} --extensions {1} --domain {2} {3}"
            .format(dburl, self.extension, "localhost", self.projname)
        )
        code, output = exec_cmd(cmd, cwd=self.workdir)
                self.assertIn("password = password", content)
                self.assertIn("dbname = testdb", content)
                self.assertIn("hosts = localhost", content)
            else:
                self.assertIn("dbpath = testdb", content)

    def test_postgres_maps(self):
        self._test_maps_generation("postgres")

    def test_mysql_maps(self):
        self._test_maps_generation("mysql")

    def test_sqlite_maps(self):
        self._test_maps_generation("sqlite")

<MSG> Add an option to skip extensions installation.

<DFF> @@ -28,7 +28,8 @@ class TestRunnerMixin(object):
         )
         cmd = (
             "modoboa-admin.py deploy --collectstatic "
-            "--dburl {0} --extensions {1} --domain {2} {3}"
+            "--dburl {0} --extensions {1} --dont-install-extensions "
+            "--domain {2} {3}"
             .format(dburl, self.extension, "localhost", self.projname)
         )
         code, output = exec_cmd(cmd, cwd=self.workdir)

Add an option to skip extensions installation.