Author: Lisandro Dalcin <dalc...@gmail.com>
Branch:
Changeset: r1576:4ebadac73fae
Date: 2014-04-30 14:18 +0300
http://bitbucket.org/cffi/cffi/changeset/4ebadac73fae/
Log: Add test for approximate return types
diff --git a/testing/test_verify.py b/testing/test_verify.py
--- a/testing/test_verify.py
+++ b/testing/test_verify.py
@@ -109,17 +109,19 @@
assert res != math.sin(1.23) # not exact, because of double->float
assert abs(res - math.sin(1.23)) < 1E-5
-def test_strlen_exact():
+def test_return_exact():
ffi = FFI()
ffi.cdef("size_t strlen(const char *s);")
lib = ffi.verify("#include <string.h>")
assert lib.strlen(b"hi there!") == 9
-def test_strlen_approximate():
- ffi = FFI()
- ffi.cdef("size_t strlen(char *s);")
- lib = ffi.verify("#include <string.h>")
- assert lib.strlen(b"hi there!") == 9
+def test_return_approximate():
+ for typename in ['short', 'int', 'long', 'long long']:
+ ffi = FFI()
+ ffi.cdef("%s foo(signed char x);" % typename)
+ lib = ffi.verify("signed char foo(signed char x) { return x;}")
+ assert lib.foo(-128) == -128
+ assert lib.foo(+127) == +127
def test_strlen_array_of_char():
ffi = FFI()
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