Added test cases for domain's SPF record

This patch adds test cases for domain's SPF record form.

This also moves BaseRecordFormCleanTests class to
__init__.py file that can be imported to new files.

Change-Id: Ibda78deb526a531acff91d7ce9ab3af5d329ec01

designatedashboard/tests/test_spf_record_form.py

@@ -0,0 +1,70 @@
+# Copyright 2015 NEC Corporation.  All rights reserved.
+#
+#    Licensed under the Apache License, Version 2.0 (the "License"); you may
+#    not use this file except in compliance with the License. You may obtain
+#    a copy of the License at
+#
+#         http://www.apache.org/licenses/LICENSE-2.0
+#
+#    Unless required by applicable law or agreed to in writing, software
+#    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+#    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+#    License for the specific language governing permissions and limitations
+#    under the License.
+
+from designatedashboard import tests
+
+
+class SPFRecordFormTests(tests.BaseRecordFormCleanTests):
+
+    TEXT = 'v=spf1 +all'
+
+    def setUp(self):
+        super(SPFRecordFormTests, self).setUp()
+        self.form.cleaned_data['type'] = 'SPF'
+        self.form.cleaned_data['name'] = self.HOSTNAME
+        self.form.cleaned_data['txt'] = self.TEXT
+
+    def test_valid_field_values(self):
+        self.form.clean()
+        self.assert_no_errors()
+
+    def test_valid_name_field_wild_card(self):
+        self.form.cleaned_data['name'] = '*'
+        self.form.clean()
+        self.assert_no_errors()
+
+    def test_missing_name_field(self):
+        self.form.cleaned_data['name'] = ''
+        self.form.clean()
+        self.assert_no_errors()
+
+    def test_missing_txt_field(self):
+        self.form.cleaned_data['txt'] = ''
+        self.form.clean()
+        self.assert_no_errors()
+
+    def test_invalid_name_field(self):
+        self.form.cleaned_data['name'] = 'foo-'
+        self.form.clean()
+        self.assert_error('name', self.MSG_INVALID_HOSTNAME)
+
+    def test_invalid_name_field_starting_dash(self):
+        self.form.cleaned_data['name'] = '-ww.foo.com'
+        self.form.clean()
+        self.assert_error('name', self.MSG_INVALID_HOSTNAME)
+
+    def test_invalid_name_field_trailing_dash(self):
+        self.form.cleaned_data['name'] = 'www.foo.co-'
+        self.form.clean()
+        self.assert_error('name', self.MSG_INVALID_HOSTNAME)
+
+    def test_invalid_name_field_bad_wild_card(self):
+        self.form.cleaned_data['name'] = 'derp.*'
+        self.form.clean()
+        self.assert_error('name', self.MSG_INVALID_HOSTNAME)
+
+    def test_outside_of_domain_name_field(self):
+        self.form.cleaned_data['name'] = 'www.bar.com.'
+        self.form.clean()
+        self.assert_error('name', self.MSG_INVALID_HOSTNAME)