Add a Workspace class

1 files changed, 85 insertions, 0 deletions

diff --git a/morphlib/workspace_tests.py b/morphlib/workspace_tests.py
new file mode 100644
index 00000000..7837481a
--- /dev/null
+++ b/morphlib/workspace_tests.py
@@ -0,0 +1,85 @@
+# Copyright (C) 2013  Codethink Limited
+#
+# 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 2 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.
+#
+# =*= License: GPL-2 =*=
+
+
+import os
+import shutil
+import tempfile
+import unittest
+
+import morphlib
+
+
+class WorkspaceTests(unittest.TestCase):
+
+    def setUp(self):
+        self.tempdir = tempfile.mkdtemp()
+        self.workspace_dir = os.path.join(self.tempdir, 'workspace')
+
+    def tearDown(self):
+        shutil.rmtree(self.tempdir)
+
+    def assertIsWorkspace(self, dirname):
+        self.assertTrue(os.path.isdir(dirname))
+        self.assertTrue(os.path.isdir(os.path.join(dirname, '.morph')))
+
+    def create_it(self):
+        morphlib.workspace.create(self.workspace_dir)
+
+    def test_creates_workspace(self):
+        ws = morphlib.workspace.create(self.workspace_dir)
+        self.assertIsWorkspace(self.workspace_dir)
+        self.assertEqual(ws.root, self.workspace_dir)
+
+    def test_create_initialises_existing_but_empty_directory(self):
+        os.mkdir(self.workspace_dir)
+        ws = morphlib.workspace.create(self.workspace_dir)
+        self.assertIsWorkspace(self.workspace_dir)
+        self.assertEqual(ws.root, self.workspace_dir)
+
+    def test_fails_to_create_workspace_when_dir_exists_and_is_not_empty(self):
+        os.mkdir(self.workspace_dir)
+        os.mkdir(os.path.join(self.workspace_dir, 'somedir'))
+        self.assertRaises(
+            morphlib.workspace.WorkspaceDirExists,
+            morphlib.workspace.create, self.workspace_dir)
+
+    def test_fails_to_recreate_workspace(self):
+        # Create it once.
+        morphlib.workspace.create(self.workspace_dir)
+        # Creating it again must fail.
+        self.assertRaises(
+            morphlib.workspace.WorkspaceDirExists,
+            morphlib.workspace.create, self.workspace_dir)
+
+    def test_opens_workspace_when_given_its_root(self):
+        self.create_it()
+        ws = morphlib.workspace.open(self.workspace_dir)
+        self.assertEqual(ws.root, self.workspace_dir)
+
+    def test_opens_workspace_when_given_subdirectory(self):
+        self.create_it()
+        subdir = os.path.join(self.workspace_dir, 'subdir')
+        os.mkdir(subdir)
+        ws = morphlib.workspace.open(subdir)
+        self.assertEqual(ws.root, self.workspace_dir)
+
+    def test_fails_to_open_workspace_when_no_workspace_anywhere(self):
+        self.assertRaises(
+            morphlib.workspace.NotInWorkspace,
+            morphlib.workspace.open, self.tempdir)
+