Add `write_wiki_page` function.

* gd_diff.py (write_wiki_page): New function.
* tests/test_gd_diff.py (test_write_wiki_page): Test for
  `write_wiki_page`.

2 files changed, 20 insertions, 0 deletions

diff --git a/gd_diff.py b/gd_diff.py
index 8c802c6..5f069d1 100644
--- a/gd_diff.py
+++ b/gd_diff.py
@@ -283,6 +283,15 @@ def wiki_page_dir(release):
     return wd_release
 
 
+def write_wiki_page(release, content):
+    """Write wiki page `content` to `release`' last.rev file.
+
+    """
+    wd_release = wiki_page_dir(release)
+    wp_file = os.path.join(wd_release, 'last.rev')
+    write_file(wp_file, content)
+
+
 def configured_p():
     """Returns True if gns-deb-diff is configured; False otherwise.
     """
diff --git a/tests/test_gd_diff.py b/tests/test_gd_diff.py
index 516fa35..cc7fc4a 100644
--- a/tests/test_gd_diff.py
+++ b/tests/test_gd_diff.py
@@ -293,6 +293,17 @@ class TestGdDiff(object):
             assert_equal(os.path.isdir(wd_parkes), True)
 
 
+    def test_write_wiki_page(self):
+        def env(e):
+            return self.test_home
+
+        with mock.patch('os.getenv', new=env):
+            release = 'parkes'
+            write_wiki_page(release, 'wiki content')
+            wp_file = os.path.join(wiki_page_dir(release), 'last.rev')
+            assert_equal(read_file(wp_file), 'wiki content')
+
+
     def test_configured_p_no(self):
         def env(e):
             return self.test_home