From f79bdee20cacc521d7ec3a8720a43087b47326d6 Mon Sep 17 00:00:00 2001
From: Josh Gao <jmgao@google.com>
Date: Wed, 23 Sep 2015 20:45:19 -0700
Subject: Import gdb 7.10 linux-x86_64 prebuilt.

Taken from aosp-master-ndk build 2274331.

Bug: http://b/21920612
Change-Id: I2129ab5b85c96273bdb97ee9ca82116bb4db87fa
---
 lib/python2.7/ctypes/test/test_frombuffer.py | 81 ++++++++++++++++++++++++++++
 1 file changed, 81 insertions(+)
 create mode 100644 lib/python2.7/ctypes/test/test_frombuffer.py

(limited to 'lib/python2.7/ctypes/test/test_frombuffer.py')

diff --git a/lib/python2.7/ctypes/test/test_frombuffer.py b/lib/python2.7/ctypes/test/test_frombuffer.py
new file mode 100644
index 0000000..624fb70
--- /dev/null
+++ b/lib/python2.7/ctypes/test/test_frombuffer.py
@@ -0,0 +1,81 @@
+from ctypes import *
+import array
+import gc
+import unittest
+
+class X(Structure):
+    _fields_ = [("c_int", c_int)]
+    init_called = False
+    def __init__(self):
+        self._init_called = True
+
+class Test(unittest.TestCase):
+    def test_fom_buffer(self):
+        a = array.array("i", range(16))
+        x = (c_int * 16).from_buffer(a)
+
+        y = X.from_buffer(a)
+        self.assertEqual(y.c_int, a[0])
+        self.assertFalse(y.init_called)
+
+        self.assertEqual(x[:], a.tolist())
+
+        a[0], a[-1] = 200, -200
+        self.assertEqual(x[:], a.tolist())
+
+        self.assertTrue(a in x._objects.values())
+
+        self.assertRaises(ValueError,
+                          c_int.from_buffer, a, -1)
+
+        expected = x[:]
+        del a; gc.collect(); gc.collect(); gc.collect()
+        self.assertEqual(x[:], expected)
+
+        self.assertRaises(TypeError,
+                          (c_char * 16).from_buffer, "a" * 16)
+
+    def test_fom_buffer_with_offset(self):
+        a = array.array("i", range(16))
+        x = (c_int * 15).from_buffer(a, sizeof(c_int))
+
+        self.assertEqual(x[:], a.tolist()[1:])
+        self.assertRaises(ValueError, lambda: (c_int * 16).from_buffer(a, sizeof(c_int)))
+        self.assertRaises(ValueError, lambda: (c_int * 1).from_buffer(a, 16 * sizeof(c_int)))
+
+    def test_from_buffer_copy(self):
+        a = array.array("i", range(16))
+        x = (c_int * 16).from_buffer_copy(a)
+
+        y = X.from_buffer_copy(a)
+        self.assertEqual(y.c_int, a[0])
+        self.assertFalse(y.init_called)
+
+        self.assertEqual(x[:], range(16))
+
+        a[0], a[-1] = 200, -200
+        self.assertEqual(x[:], range(16))
+
+        self.assertEqual(x._objects, None)
+
+        self.assertRaises(ValueError,
+                          c_int.from_buffer, a, -1)
+
+        del a; gc.collect(); gc.collect(); gc.collect()
+        self.assertEqual(x[:], range(16))
+
+        x = (c_char * 16).from_buffer_copy("a" * 16)
+        self.assertEqual(x[:], "a" * 16)
+
+    def test_fom_buffer_copy_with_offset(self):
+        a = array.array("i", range(16))
+        x = (c_int * 15).from_buffer_copy(a, sizeof(c_int))
+
+        self.assertEqual(x[:], a.tolist()[1:])
+        self.assertRaises(ValueError,
+                          (c_int * 16).from_buffer_copy, a, sizeof(c_int))
+        self.assertRaises(ValueError,
+                          (c_int * 1).from_buffer_copy, a, 16 * sizeof(c_int))
+
+if __name__ == '__main__':
+    unittest.main()
-- 
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