Author: Armin Rigo <ar...@tunes.org>
Branch:
Changeset: r590:1a023858061f
Date: 2012-07-07 14:27 +0200
http://bitbucket.org/cffi/cffi/changeset/1a023858061f/
Log: Add a test
diff --git a/c/test_c.py b/c/test_c.py
--- a/c/test_c.py
+++ b/c/test_c.py
@@ -1356,3 +1356,24 @@
assert (p < s) is (p <= s) is (s > p) is (s >= p)
assert (p > s) is (p >= s) is (s < p) is (s <= p)
assert (p < s) ^ (p > s)
+
+def test_buffer():
+ BChar = new_primitive_type("char")
+ BCharArray = new_array_type(new_pointer_type(BChar), None)
+ c = newp(BCharArray, "hi there")
+ buf = buffer(c)
+ assert str(buf) == "hi there\x00"
+ assert len(buf) == len("hi there\x00")
+ assert buf[0] == 'h'
+ assert buf[2] == ' '
+ assert list(buf) == ['h', 'i', ' ', 't', 'h', 'e', 'r', 'e', '\x00']
+ buf[2] = '-'
+ assert c[2] == '-'
+ assert str(buf) == "hi-there\x00"
+ buf[:2] = 'HI'
+ assert str(c) == 'HI-there'
+ assert buf[:4:2] == 'H-'
+ if '__pypy__' not in sys.builtin_module_names:
+ # XXX pypy doesn't support the following assignment so far
+ buf[:4:2] = 'XY'
+ assert str(c) == 'XIYthere'
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