1 files changed, 135 insertions, 0 deletions
diff --git a/tests/test_timeout.py b/tests/test_timeout.py
new file mode 100644
index 0000000..6d05449
--- /dev/null
+++ b/tests/test_timeout.py
@@ -0,0 +1,135 @@
+#!/usr/bin/env python
+
+"""Unit tests for M2Crypto.SSL.timeout.
+"""
+
+import sys
+from M2Crypto.SSL import timeout, struct_to_timeout, struct_size
+from tests import unittest
+
+# Max value for sec argument on Windows:
+# - needs to fit DWORD (signed 32-bit) when converted to millisec
+MAX_SEC_WIN32 = int((2**31 - 1) / 1000)
+
+# Max value for sec argument on other platforms:
+# Note: It may actually be 64-bit but we are happy with 32-bit.
+# We use the signed maximum, because the packing uses lower case "l".
+MAX_SEC_OTHER = 2**31 - 1
+
+# Enable this to test the Windows logic on a non-Windows platform:
+# sys.platform = 'win32'
+
+
+class TimeoutTestCase(unittest.TestCase):
+
+    def timeout_test(self, sec, microsec, exp_sec=None, exp_microsec=None):
+        """
+        Test that the timeout values (sec, microsec) are the same after
+        round tripping through a pack / unpack cycle.
+        """
+        if exp_sec is None:
+            exp_sec = sec
+        if exp_microsec is None:
+            exp_microsec = microsec
+
+        to = timeout(sec, microsec)
+
+        binstr = to.pack()
+
+        act_to = struct_to_timeout(binstr)
+
+        self.assertEqual(
+            (act_to.sec, act_to.microsec), (exp_sec, exp_microsec),
+            "Unexpected timeout(sec,microsec) after pack + unpack: "
+            "Got (%r,%r), expected (%r,%r), input was (%r,%r)" %
+            (act_to.sec, act_to.microsec, exp_sec, exp_microsec,
+            sec, microsec))
+
+    def test_timeout_0_0(self):
+        self.timeout_test(0, 0)
+
+    def test_timeout_123_0(self):
+        self.timeout_test(123, 0)
+
+    def test_timeout_max_0(self):
+        if sys.platform == 'win32':
+            self.timeout_test(MAX_SEC_WIN32, 0)
+        else:
+            self.timeout_test(MAX_SEC_OTHER, 0)
+
+    def test_timeout_0_456000(self):
+        self.timeout_test(0, 456000)
+
+    def test_timeout_123_456000(self):
+        self.timeout_test(123, 456000)
+
+    def test_timeout_2_3000000(self):
+        if sys.platform == 'win32':
+            self.timeout_test(2, 3000000, 5, 0)
+        else:
+            self.timeout_test(2, 3000000)
+
+    def test_timeout_2_2499000(self):
+        if sys.platform == 'win32':
+            self.timeout_test(2, 2499000, 4, 499000)
+        else:
+            self.timeout_test(2, 2499000)
+
+    def test_timeout_2_2999000(self):
+        if sys.platform == 'win32':
+            self.timeout_test(2, 2999000, 4, 999000)
+        else:
+            self.timeout_test(2, 2999000)
+
+    def test_timeout_max_456000(self):
+        if sys.platform == 'win32':
+            self.timeout_test(MAX_SEC_WIN32, 456000)
+        else:
+            self.timeout_test(MAX_SEC_OTHER, 456000)
+
+    def test_timeout_0_456(self):
+        if sys.platform == 'win32':
+            self.timeout_test(0, 456, None, 0)
+        else:
+            self.timeout_test(0, 456)
+
+    def test_timeout_123_456(self):
+        if sys.platform == 'win32':
+            self.timeout_test(123, 456, None, 0)
+        else:
+            self.timeout_test(123, 456)
+
+    def test_timeout_max_456(self):
+        if sys.platform == 'win32':
+            self.timeout_test(MAX_SEC_WIN32, 456, None, 0)
+        else:
+            self.timeout_test(MAX_SEC_OTHER, 456)
+
+    def test_timeout_1_499(self):
+        if sys.platform == 'win32':
+            self.timeout_test(123, 499, None, 0)  # 499 us rounds down to 0
+        else:
+            self.timeout_test(123, 499)
+
+    def test_timeout_1_501(self):
+        # We use 501 for this test and not 500 because 0.5 is not exactly
+        # represented in binary floating point numbers, and because 0.5
+        # rounds differently between py2 and py3. See Python round() docs.
+        if sys.platform == 'win32':
+            self.timeout_test(123, 501, None, 1000)  # 501 us rounds up to 1000
+        else:
+            self.timeout_test(123, 501)
+
+    def test_timeout_size(self):
+        exp_size = len(timeout(0, 0).pack())
+        self.assertEqual(struct_size(), exp_size)
+
+
+def suite():
+    suite = unittest.TestSuite()
+    suite.addTest(unittest.makeSuite(TimeoutTestCase))
+    return suite
+
+
+if __name__ == '__main__':
+    unittest.TextTestRunner().run(suite())