add 'pathprefix2dict' utility for use by DataSourceNoCloud

1 files changed, 40 insertions, 0 deletions

diff --git a/tests/unittests/test_pathprefix2dict.py b/tests/unittests/test_pathprefix2dict.py
new file mode 100644
index 00000000..c68c263c
--- /dev/null
+++ b/tests/unittests/test_pathprefix2dict.py
@@ -0,0 +1,40 @@
+from cloudinit import util
+
+from mocker import MockerTestCase
+from tests.unittests.helpers import populate_dir
+
+
+class TestPathPrefix2Dict(MockerTestCase):
+
+    def setUp(self):
+        self.tmp = self.makeDir()
+
+    def test_required_only(self):
+        dirdata = {'f1': 'f1content', 'f2': 'f2content'}
+        populate_dir(self.tmp, dirdata)
+
+        ret = util.pathprefix2dict(self.tmp, required=['f1', 'f2'])
+        self.assertEqual(dirdata, ret)
+
+    def test_required_missing(self):
+        dirdata = {'f1': 'f1content'}
+        populate_dir(self.tmp, dirdata)
+        kwargs = {'required': ['f1', 'f2']}
+        self.assertRaises(ValueError, util.pathprefix2dict, self.tmp, **kwargs)
+
+    def test_no_required_and_optional(self):
+        dirdata = {'f1': 'f1c', 'f2': 'f2c'}
+        populate_dir(self.tmp, dirdata)
+
+        ret = util.pathprefix2dict(self.tmp, required=None,
+                                  optional=['f1', 'f2'])
+        self.assertEqual(dirdata, ret)
+
+    def test_required_and_optional(self):
+        dirdata = {'f1': 'f1c', 'f2': 'f2c'}
+        populate_dir(self.tmp, dirdata)
+
+        ret = util.pathprefix2dict(self.tmp, required=['f1'], optional=['f2'])
+        self.assertEqual(dirdata, ret)
+
+# vi: ts=4 expandtab