diff -r 6a8ea0d363c1 -r 1d755df7bf97 pvl/hosts/tests.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/pvl/hosts/tests.py	Tue Feb 24 17:35:36 2015 +0200
@@ -0,0 +1,46 @@
+import ipaddr
+import unittest
+
+from pvl.hosts import config
+from StringIO import StringIO
+
+class Options(object):
+    hosts_charset   = 'utf-8'
+    hosts_domain    = None
+    hosts_include   = None
+
+class NamedStringIO(StringIO):
+    def __init__(self, name, buffer):
+        StringIO.__init__(self, buffer)
+        self.name = name
+
+class TestConfig(unittest.TestCase):
+    def setUp(self):
+        self.options = Options()
+
+    def testApplyHostsError(self):
+        with self.assertRaises(config.HostConfigError):
+            list(config.apply_hosts(self.options, ['nonexistant']))
+
+    def testApplyHosts(self):
+        expected = [
+            ('foo', 'test', ipaddr.IPAddress('127.0.0.1')),
+            ('bar', 'test', ipaddr.IPAddress('127.0.0.2')),
+        ]
+
+        for expect, host in zip(expected, config.apply_hosts_file(self.options, NamedStringIO('test', """
+[foo]
+    ip = 127.0.0.1
+
+[bar]
+    ip = 127.0.0.2
+"""
+        ))):
+            hostname, domain, ip = expect
+
+            self.assertEquals(str(host), hostname)
+            self.assertEquals(host.domain, domain)
+            self.assertEquals(host.ip, ip)
+ 
+if __name__ == '__main__':
+    unittest.main()