[damned-lies] Fixed commit log URL to depend on branch name

[Claude Paroz <claudep src gnome org>]

commit 50710648609518c03c8cd1406063fffecde78487
Author: Claude Paroz <claude 2xlibre net>
Date:   Sun Oct 7 22:11:22 2018 +0200

    Fixed commit log URL to depend on branch name
    
    Refs #106.

 stats/models.py      |  2 +-
 stats/tests/tests.py | 17 +++++++++++++++--
 2 files changed, 16 insertions(+), 3 deletions(-)
---
diff --git a/stats/models.py b/stats/models.py
index 35818df0..823f1ff3 100644
--- a/stats/models.py
+++ b/stats/models.py
@@ -304,7 +304,7 @@ class Branch(models.Model):
     def get_vcs_web_log_url(self):
         """ Link to browsable commit log """
         if self.module.vcs_type == 'git':
-            return utils.url_join(self.module.vcs_web, 'commits', 'master')
+            return utils.url_join(self.module.vcs_web, 'commits', self.name)
         else:
             # Not implemented for other VCS
             return ""
diff --git a/stats/tests/tests.py b/stats/tests/tests.py
index 4ff3ce14..b0dd2c37 100644
--- a/stats/tests/tests.py
+++ b/stats/tests/tests.py
@@ -97,8 +97,21 @@ class ModuleTestCase(TestCase):
         self.assertContains(response, "Sorry, no known locations to report bugs for this module.")
 
     def test_branch_methods(self):
-        self.assertTrue(self.branch.is_head())
-        self.assertEqual(self.branch.get_vcs_web_url(), "https://gitlab.gnome.org/GNOME/gnome-hello/";)
+        branch = Branch(module=self.mod, name='master')
+        self.assertTrue(branch.is_head())
+        self.assertEqual(
+            branch.get_vcs_web_url(),
+            "https://gitlab.gnome.org/GNOME/gnome-hello/";
+        )
+        self.assertEqual(
+            branch.get_vcs_web_log_url(),
+            'https://gitlab.gnome.org/GNOME/gnome-hello/commits/master'
+        )
+        branch.name = 'gnome-3-30'
+        self.assertEqual(
+            branch.get_vcs_web_log_url(),
+            'https://gitlab.gnome.org/GNOME/gnome-hello/commits/gnome-3-30'
+        )
 
     def test_branch_domains(self):
         """