Dillute long URIs with zero-width spaces

Change-Id: I6e5a3c432f1ebcba207278a40c12d8ad46c6870e

stackalytics/processor/utils.py

@@ -188,7 +188,11 @@ def unwrap_text(text):
 
 def format_text(s):
     s = cgi.escape(re.sub(re.compile('\n{2,}', flags=re.MULTILINE), '\n', s))
-    s = re.sub(r'([/\/\*=~]{1,2}|--|\+\+)', r'\1​', s)
+
+    def replace_dots(match_obj):
+        return re.sub(r'([\./]+)', r'\1​', match_obj.group(0))
+
+    s = re.sub(r'((?:\w+[\./]+)+\w+)', replace_dots, s)
     return s
 
 

tests/unit/test_utils.py

@@ -60,8 +60,22 @@ class TestUtils(testtools.TestCase):
     def test_format_text_split_long_link(self):
         original = ('https://blueprints.launchpad.net/stackalytics/+spec/'
                     'stackalytics-core')
-        expected = ('https://​blueprints.launchpad.net/​'
-                    'stackalytics/​+spec/​stackalytics-core')
+        expected = ('https://blueprints.​launchpad.​net'
+                    '/​stackalytics/+spec/​stackalytics-core')
+
+        self.assertEqual(expected, utils.format_text(original))
+
+    def test_format_text_split_full_class_path(self):
+        original = 'tests.unit.benchmark.scenarios.test_base'
+        expected = ('tests.​unit.​benchmark.​'
+                    'scenarios.​test_base')
+
+        self.assertEqual(expected, utils.format_text(original))
+
+    def test_format_text_split_full_class_path_middle_line(self):
+        original = 'some text tests.unit.benchmark.scenarios.test_base wide'
+        expected = ('some text tests.​unit.​benchmark.​'
+                    'scenarios.​test_base wide')
 
         self.assertEqual(expected, utils.format_text(original))