1 files changed, 41 insertions, 0 deletions
diff --git a/tests/unittests/test_distros/test_hosts.py b/tests/unittests/test_distros/test_hosts.py
new file mode 100644
index 00000000..687a0dab
--- /dev/null
+++ b/tests/unittests/test_distros/test_hosts.py
@@ -0,0 +1,41 @@
+from mocker import MockerTestCase
+
+from cloudinit.distros.parsers import hosts
+
+
+BASE_ETC = '''
+# Example
+127.0.0.1	localhost
+192.168.1.10	foo.mydomain.org  foo
+192.168.1.10 	bar.mydomain.org  bar
+146.82.138.7	master.debian.org      master
+209.237.226.90	www.opensource.org
+'''
+BASE_ETC = BASE_ETC.strip()
+
+
+class TestHostsHelper(MockerTestCase):
+    def test_parse(self):
+        eh = hosts.HostsConf(BASE_ETC)
+        self.assertEquals(eh.get_entry('127.0.0.1'), [['localhost']])
+        self.assertEquals(eh.get_entry('192.168.1.10'),
+                          [['foo.mydomain.org', 'foo'],
+                           ['bar.mydomain.org', 'bar']])
+        eh = str(eh)
+        self.assertTrue(eh.startswith('# Example'))
+
+    def test_add(self):
+        eh = hosts.HostsConf(BASE_ETC)
+        eh.add_entry('127.0.0.0', 'blah')
+        self.assertEquals(eh.get_entry('127.0.0.0'), [['blah']])
+        eh.add_entry('127.0.0.3', 'blah', 'blah2', 'blah3')
+        self.assertEquals(eh.get_entry('127.0.0.3'),
+                          [['blah', 'blah2', 'blah3']])
+
+    def test_del(self):
+        eh = hosts.HostsConf(BASE_ETC)
+        eh.add_entry('127.0.0.0', 'blah')
+        self.assertEquals(eh.get_entry('127.0.0.0'), [['blah']])
+
+        eh.del_entries('127.0.0.0')
+        self.assertEquals(eh.get_entry('127.0.0.0'), [])