Implement delete segment

Added delete segment functionality.
Also added test cases that actually not covering
the line of code but tested the delete segment functionally.

Partial-Implements: blueprint masakari-dashboard

Change-Id: Iabf59e92be9de09d2d2fde48fea403b7cd2bcd26

masakaridashboard/api/api.py

@@ -110,3 +110,9 @@ def segment_create(request, data):
 def get_segment(request, segment_id):
     """Returns segment by id"""
     return openstack_connection(request).get_segment(segment_id)
+
+
+@handle_errors(_("Unable to delete segment"), [])
+def segment_delete(request, segment_id, ignore_missing=True):
+    return openstack_connection(request).delete_segment(
+        segment_id, ignore_missing)

masakaridashboard/segments/tables.py

@@ -14,6 +14,9 @@
 #    under the License.
 
 from django.utils.translation import ugettext_lazy as _
+from django.utils.translation import ungettext_lazy
+
+from masakaridashboard.api import api
 
 from horizon import tables
 
@@ -37,6 +40,27 @@ class SegmentFilterAction(tables.FilterAction):
     filter_choices = SEGMENT_FILTER_CHOICES
 
 
+class DeleteSegment(tables.DeleteAction):
+    @staticmethod
+    def action_present(count):
+        return ungettext_lazy(
+            u"Delete Segment",
+            u"Delete Segments",
+            count
+        )
+
+    @staticmethod
+    def action_past(count):
+        return ungettext_lazy(
+            u"Deleted Segment",
+            u"Deleted Segments",
+            count
+        )
+
+    def delete(self, request, segment_uuid):
+        api.segment_delete(request, segment_uuid, ignore_missing=True)
+
+
 class FailoverSegmentTable(tables.DataTable):
 
     name = tables.WrappingColumn('name', verbose_name=_("Name"), truncate=40)
@@ -55,4 +79,4 @@ class FailoverSegmentTable(tables.DataTable):
     class Meta(object):
         name = "failover_segment"
         verbose_name = _("FailoverSegment")
-        table_actions = (CreateSegment, SegmentFilterAction)
+        table_actions = (DeleteSegment, CreateSegment, SegmentFilterAction)

masakaridashboard/segments/tests.py

@@ -149,3 +149,25 @@ class SegmentTest(test.TestCase):
             url=url, has_more=True, has_prev=False)
         segments = res.context['failover_segment_table'].data
         self.assertItemsEqual(segments, expected_segments)
+
+    def test_delete_ok(self):
+
+        segment = self.masakari_segment.list()[0]
+        data = {'object_ids': [segment.uuid],
+                'action': 'failover_segment__delete'}
+        with mock.patch(
+                'masakaridashboard.api.api.get_segment_list',
+                return_value=(self.masakari_segment.list(), True, True)
+        ), mock.patch(
+                'masakaridashboard.api.api.segment_delete',
+                return_value=None
+        ) as mocked_delete:
+            res = self.client.post(INDEX_URL, data)
+
+        self.assertNoFormErrors(res)
+        self.assertRedirectsNoFollow(res, INDEX_URL)
+        mocked_delete.assert_called_once_with(
+            mock.ANY,
+            segment.uuid,
+            ignore_missing=True
+        )