add tests for dict2columns

Change-Id: I42e9a9a74af9f5608e67e20f131f6a7155179037

2 files changed, 59 insertions, 0 deletions

diff --git a/docs/source/history.rst b/docs/source/history.rst
index 5b090f9..700d87d 100644
--- a/docs/source/history.rst
+++ b/docs/source/history.rst
@@ -2,6 +2,11 @@
  Release History
 =================
 
+dev
+
+- Add ``dict2columns`` method to ``ShowOne``. (Contributed by Dean
+  Troyer)
+
 1.4
 
 - Store a reference to the InteractiveApp on the App while in
diff --git a/tests/test_show.py b/tests/test_show.py
new file mode 100644
index 0000000..41df5e1
--- /dev/null
+++ b/tests/test_show.py
@@ -0,0 +1,54 @@
+#!/usr/bin/env python
+
+from cliff.show import ShowOne
+
+import mock
+
+
+class FauxFormatter(object):
+
+    def __init__(self):
+        self.args = []
+
+    def emit_list(self, columns, data, stdout, args):
+        self.args.append((columns, data))
+
+
+class ExerciseShowOne(ShowOne):
+
+    def load_formatter_plugins(self):
+        self.formatters = {
+            'test': FauxFormatter(),
+        }
+        return
+
+    def take_action(self, parsed_args):
+        return (
+            parsed_args.columns,
+            [('a', 'A'), ('b', 'B')],
+        )
+
+
+# def test_formatter_args():
+#     app = mock.Mock()
+#     test_lister = ExerciseLister(app, [])
+
+#     parsed_args = mock.Mock()
+#     parsed_args.columns = ('Col1', 'Col2')
+#     parsed_args.formatter = 'test'
+
+#     test_lister.run(parsed_args)
+#     f = test_lister.formatters['test']
+#     assert len(f.args) == 1
+#     args = f.args[0]
+#     assert args[0] == list(parsed_args.columns)
+#     data = list(args[1])
+#     assert data == [['a', 'A'], ['b', 'B']]
+
+def test_dict2columns():
+    app = mock.Mock()
+    test_show = ExerciseShowOne(app, [])
+    d = {'a': 'A', 'b': 'B', 'c': 'C'}
+    expected = [('a', 'b', 'c'), ('A', 'B', 'C')]
+    actual = list(test_show.dict2columns(d))
+    assert expected == actual