Fix tests

Invalid text changed to be something that doesn't parse as YAML
either, and catch convert the YAMLError to the expected exception.

Ideally there wouldn't be any `#pragma: no cover`s, but I could not
trigger these code paths.

1 files changed, 69 insertions, 0 deletions

diff --git a/morphlib/yamlparse_tests.py b/morphlib/yamlparse_tests.py
new file mode 100644
index 00000000..cb658e15
--- /dev/null
+++ b/morphlib/yamlparse_tests.py
@@ -0,0 +1,69 @@
+# 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.
+
+import unittest
+
+try:
+    from collections import OrderedDict
+except ImportError:
+    from ordereddict import OrderedDict
+import yaml
+
+import morphlib.yamlparse as yamlparse
+
+
+class YAMLParseTests(unittest.TestCase):
+
+    example_text = '''\
+name: foo
+kind: chunk
+build-system: manual
+'''
+
+    example_dict = OrderedDict([
+        ('name', 'foo'),
+        ('kind', 'chunk'),
+        ('build-system', 'manual'),
+    ])
+
+    def test_loads_as_ordered_dict(self):
+        m = yamlparse.load(self.example_text)
+        self.assertEqual(type(m), OrderedDict)
+
+    def test_dumps_ordered_dicts(self):
+        self.assertEqual(self.example_text,
+                         yamlparse.dump(self.example_dict))
+
+    def test_non_map_raises(self):
+        incorrect_type = '''\
+!!map
+- foo
+- bar
+'''
+        self.assertRaises(yaml.YAMLError, yamlparse.load, incorrect_type)
+
+    def test_complex_key_fails_KNOWNFAILURE(self):
+        complex_key = '? { foo: bar, baz: qux }: True'
+        self.assertRaises(yaml.YAMLError, yamlparse.load, complex_key)
+
+    def test_represents_non_scalar_nodes(self):
+        self.assertTrue(
+            yamlparse.dump(
+                {
+                    ('a', 'b'): {
+                        "foo": 1,
+                        "bar": 2,
+                    }
+                }, default_flow_style=None))