selftest: Factor out expand_environment_strings.

selftest/run.py

@@ -0,0 +1,29 @@
+#!/usr/bin/python -u
+# Bootstrap Samba and run a number of tests against it.
+# Copyright (C) 2012 Jelmer Vernooij <jelmer@samba.org>
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import os
+
+# expand strings from %ENV
+def expand_environment_strings(s, vars):
+    # we use a reverse sort so we do the longer ones first
+    for k in sorted(vars.keys(), reverse=True):
+        v = vars[k]
+        s = s.replace("$%s" % k, v)
+    return s
+
+
+

selftest/selftest.py

@@ -39,6 +39,7 @@ from selftest import (
     subunithelper,
     testlist,
     )
+from selftest.run import expand_environment_strings
 from selftest.target import (
     EnvironmentManager,
     NoneTarget,
@@ -118,15 +119,6 @@ def cleanup_pcap(pcap_file, exit_code):
     os.unlink(pcap_file)
 
 
-# expand strings from %ENV
-def expand_environment_strings(s):
-    # we use a reverse sort so we do the longer ones first
-    for k in sorted(os.environ.keys(), reverse=True):
-        v = os.environ[k]
-        s = s.replace("$%s" % k, v)
-    return s
-
-
 def run_testsuite(envname, name, cmd):
     """Run a single testsuite.
 
@@ -156,7 +148,7 @@ def run_testsuite(envname, name, cmd):
         sys.stdout.write("envlog: %s\n" % envlog)
 
     sys.stdout.write("command: %s\n" % cmd)
-    sys.stdout.write("expanded command: %s\n" % expand_environment_strings(cmd))
+    sys.stdout.write("expanded command: %s\n" % expand_environment_strings(cmd, os.environ))
 
     if exitcode == 0:
         subunit_ops.end_testsuite(name, "success")

selftest/tests/__init__.py

@@ -25,7 +25,7 @@ import unittest
 
 def test_suite():
     result = unittest.TestSuite()
-    names = ['socket_wrapper', 'target', 'testlist']
+    names = ['socket_wrapper', 'target', 'testlist', 'run']
     module_names = ['selftest.tests.test_' + name for name in names]
     loader = unittest.TestLoader()
     result.addTests(loader.loadTestsFromNames(module_names))

selftest/tests/test_run.py

@@ -0,0 +1,38 @@
+# test_run.py -- Tests for selftest.run
+# Copyright (C) 2012 Jelmer Vernooij <jelmer@samba.org>
+#
+# This program is free software; you can redistribute it and/or
+# modify it under the terms of the GNU General Public License
+# as published by the Free Software Foundation; version 3
+# of the License or (at your option) any later version of
+# the License.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+# MA  02110-1301, USA.
+
+"""Tests for selftest.run."""
+
+from selftest.run import expand_environment_strings
+
+from selftest.tests import TestCase
+
+
+class ExpandEnvironmentStringsTests(TestCase):
+
+    def test_no_vars(self):
+        self.assertEquals("foo bar", expand_environment_strings("foo bar", {}))
+
+    def test_simple(self):
+        self.assertEquals("foo bar",
+            expand_environment_strings("foo $BLA", {"BLA": "bar"}))
+
+    def test_unknown(self):
+        self.assertEquals("foo $BLA",
+            expand_environment_strings("foo $BLA", {}))