Add grange tests from the py2 branch

diff --git a/tests/test_grange.py b/tests/test_grange.py
new file mode 100644 (file)
index 0000000..aee9653
--- /dev/null
+++ b/tests/test_grange.py
@@ -0,0 +1,86 @@
+# Copyright (C) 2003-2007, 2009-2011 Nominum, Inc.
+#
+# Permission to use, copy, modify, and distribute this software and its
+# documentation for any purpose with or without fee is hereby granted,
+# provided that the above copyright notice and this permission notice
+# appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND NOMINUM DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL NOMINUM BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
+# OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+import unittest
+
+import dns
+import dns.exception
+import dns.grange
+
+
+class GRangeTestCase(unittest.TestCase):
+
+    def testFromText1(self):
+        start, stop, step = dns.grange.from_text('1-1')
+        self.assertEqual(start, 1)
+        self.assertEqual(stop, 1)
+        self.assertEqual(step, 1)
+
+    def testFromText2(self):
+        start, stop, step = dns.grange.from_text('1-4')
+        self.assertEqual(start, 1)
+        self.assertEqual(stop, 4)
+        self.assertEqual(step, 1)
+
+    def testFromText3(self):
+        start, stop, step = dns.grange.from_text('4-255')
+        self.assertEqual(start, 4)
+        self.assertEqual(stop, 255)
+        self.assertEqual(step, 1)
+
+    def testFromText4(self):
+        start, stop, step = dns.grange.from_text('1-1/1')
+        self.assertEqual(start, 1)
+        self.assertEqual(stop, 1)
+        self.assertEqual(step, 1)
+
+    def testFromText5(self):
+        start, stop, step = dns.grange.from_text('1-4/2')
+        self.assertEqual(start, 1)
+        self.assertEqual(stop, 4)
+        self.assertEqual(step, 2)
+
+    def testFromText6(self):
+        start, stop, step = dns.grange.from_text('4-255/77')
+        self.assertEqual(start, 4)
+        self.assertEqual(stop, 255)
+        self.assertEqual(step, 77)
+
+    def testFailFromText1(self):
+        def bad():
+            start = 2
+            stop = 1
+            step = 1
+            dns.grange.from_text('%d-%d/%d' % (start, stop, step))
+        self.assertRaises(AssertionError, bad)
+
+    def testFailFromText2(self):
+        def bad():
+            start = '-1'
+            stop = 3
+            step = 1
+            dns.grange.from_text('%s-%d/%d' % (start, stop, step))
+        self.assertRaises(dns.exception.SyntaxError, bad)
+
+    def testFailFromText2(self):
+        def bad():
+            start = 1
+            stop = 4
+            step = '-2'
+            dns.grange.from_text('%d-%d/%s' % (start, stop, step))
+        self.assertRaises(dns.exception.SyntaxError, bad)
+
+if __name__ == '__main__':
+    unittest.main()