Add a test for the LocationInfo plugin

Because the GeoIP database now requires registration to download the
result of the lookup using geoip-database is not going to change.

.travis.yml

@@ -21,6 +21,8 @@ addons:
   apt:
     packages:
       - clamav-daemon
+      - geoip-database
+      - libgeoip-dev
 install:
   - pip install tox-travis coveralls
 before_script:

tests/__init__.py

@@ -220,6 +220,16 @@ def has_x11():
 need_x11 = _need_func(has_x11, "X11")
 
 
+@lru_cache(1)
+def has_geoip():
+    from linkcheck.plugins import locationinfo
+
+    return locationinfo.geoip is not None
+
+
+need_geoip = _need_func(has_geoip, "geoip")
+
+
 @lru_cache(1)
 def has_word():
     """Test if Word is available."""

tests/test_locationinfo.py

@@ -0,0 +1,32 @@
+# Copyright (C) 2020 Chris Mayo
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program; if not, write to the Free Software Foundation, Inc.,
+# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+"""
+Test LocationInfo plugin.
+
+Requires GeoIP (libgeoip-dev to build) and geoip-database
+"""
+
+import unittest
+
+from linkcheck.plugins import locationinfo
+from tests import need_geoip
+
+
+class TestLocationInfo(unittest.TestCase):
+    @need_geoip
+    def test_get_location(self):
+        location = locationinfo.get_location("8.8.8.8")
+        self.assertEqual(location, "United States")

tox.ini

@@ -11,6 +11,7 @@ deps =
     pytest-cov
     miniboa >= 1.0.8
     biplist
+    GeoIP
 
 [testenv]
 usedevelop = true