Added missing method no_branch_lines to FileReporter

Author: jessamynsmith

django_coverage_plugin/plugin.py

@@ -226,6 +226,9 @@ def statements(self):
 
         return source_lines
 
+    def no_branch_lines(self):
+        return set()
+
 
 def running_sum(seq):
     total = 0

tests/test_simple.py

@@ -137,3 +137,15 @@ def test_string_template(self):
             options={},
             )
         self.assertEqual(text, "Hello, World!")
+
+
+class BranchTest(DjangoPluginTestCase):
+
+    def test_with_branch_enabled(self):
+        self.make_template('Hello')
+        text = self.run_django_coverage(
+            options={'source': ["."], 'branch': True}
+            )
+        self.assertEqual(text, 'Hello')
+        self.assertEqual(self.get_line_data(), [-1, 1])
+        self.assertEqual(self.get_analysis(), ([1], []))