add tests for emulator

Signed-off-by: Steven Armstrong <steven@icarus.ethz.ch>

lib/cdist/test/emulator/__init__.py

@@ -0,0 +1,75 @@
+# -*- coding: utf-8 -*-
+#
+# 2010-2011 Steven Armstrong (steven-cdist at armstrong.cc)
+#
+# This file is part of cdist.
+#
+# cdist 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.
+#
+# cdist 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 cdist. If not, see <http://www.gnu.org/licenses/>.
+#
+#
+
+import os
+import tempfile
+import unittest
+import shutil
+
+from cdist import test
+from cdist.exec import local
+from cdist import emulator
+from cdist import core
+
+local_base_path = test.cdist_base_path
+
+
+class EmulatorTestCase(unittest.TestCase):
+
+    def mkdtemp(self, **kwargs):
+        return tempfile.mkdtemp(prefix='tmp.cdist.test.', **kwargs)
+
+    def mkstemp(self, **kwargs):
+        return tempfile.mkstemp(prefix='tmp.cdist.test.', **kwargs)
+
+    def setUp(self):
+        self.orig_environ = os.environ
+        os.environ = os.environ.copy()
+        self.temp_dir = self.mkdtemp()
+        handle, self.script = self.mkstemp(dir=self.temp_dir)
+        self.target_host = 'localhost'
+        out_path = self.temp_dir
+        self.local = local.Local(self.target_host, local_base_path, out_path)
+        self.local.create_directories()
+        self.env = {
+            'PATH': "%s:%s" % (self.local.bin_path, os.environ['PATH']),
+            '__target_host': self.target_host,
+            '__global': self.local.out_path,
+            '__cdist_type_base_path': self.local.type_path, # for use in type emulator
+            '__manifest': self.local.manifest_path,
+            '__cdist_manifest': self.script,
+        }
+
+    def tearDown(self):
+        os.environ = self.orig_environ
+        shutil.rmtree(self.temp_dir)
+
+    def test_nonexistent_type_exec(self):
+        argv = ['__does-not-exist']
+        os.environ.update(self.env)
+        self.assertRaises(core.NoSuchTypeError, emulator.Emulator, argv)
+
+    def test_nonexistent_type_requirement(self):
+        argv = ['__file', '/tmp/foobar']
+        os.environ.update(self.env)
+        os.environ['require'] = '__does-not-exist/some-id'
+        emu = emulator.Emulator(argv)
+        self.assertRaises(core.NoSuchTypeError, emu.run)