[pypy-commit] pypy ffi-backend: Import test_c from cffi

[arigo]

Author: Armin Rigo <arigo at tunes.org>
Branch: ffi-backend
Changeset: r56621:919262f4cd5f
Date: 2012-08-07 10:24 +0200
http://bitbucket.org/pypy/pypy/changeset/919262f4cd5f/

Log:	Import test_c from cffi

diff --git a/pypy/module/_cffi_backend/test/_backend_test_c.py b/pypy/module/_cffi_backend/test/_backend_test_c.py
--- a/pypy/module/_cffi_backend/test/_backend_test_c.py
+++ b/pypy/module/_cffi_backend/test/_backend_test_c.py
@@ -82,6 +82,7 @@
 def test_no_float_on_int_types():
     p = new_primitive_type('long')
     py.test.raises(TypeError, float, cast(p, 42))
+    py.test.raises(TypeError, complex, cast(p, 42))
 
 def test_float_types():
     INF = 1E200 * 1E200
@@ -112,6 +113,39 @@
         assert float(cast(p, True)) == 1.0
         py.test.raises(TypeError, cast, p, None)
 
+def test_complex_types():
+    py.test.skip("later")
+    INF = 1E200 * 1E200
+    for name in ["float", "double"]:
+        p = new_primitive_type("_Complex " + name)
+        assert bool(cast(p, 0))
+        assert bool(cast(p, INF))
+        assert bool(cast(p, -INF))
+        assert bool(cast(p, 0j))
+        assert bool(cast(p, INF*1j))
+        assert bool(cast(p, -INF*1j))
+        py.test.raises(TypeError, int, cast(p, -150))
+        py.test.raises(TypeError, long, cast(p, -150))
+        py.test.raises(TypeError, float, cast(p, -150))
+        assert complex(cast(p, 1.25)) == 1.25
+        assert complex(cast(p, 1.25j)) == 1.25j
+        assert float(cast(p, INF*1j)) == INF*1j
+        assert float(cast(p, -INF)) == -INF
+        if name == "float":
+            assert complex(cast(p, 1.1j)) != 1.1j         # rounding error
+            assert complex(cast(p, 1E200+3j)) == INF+3j   # limited range
+            assert complex(cast(p, 3+1E200j)) == 3+INF*1j # limited range
+
+        assert cast(p, -1.1j) != cast(p, -1.1j)
+        assert repr(complex(cast(p, -0.0)).real) == '-0.0'
+        assert repr(complex(cast(p, -0j))) == '-0j'
+        assert complex(cast(p, '\x09')) == 9.0
+        assert complex(cast(p, True)) == 1.0
+        py.test.raises(TypeError, cast, p, None)
+        #
+        py.test.raises(cast, new_primitive_type(name), 1+2j)
+    py.test.raises(cast, new_primitive_type("int"), 1+2j)
+
 def test_character_type():
     p = new_primitive_type("char")
     assert bool(cast(p, '\x00'))
@@ -1256,6 +1290,7 @@
     BArray = new_array_type(new_pointer_type(BByte), None)
     a = newp(BArray, [65, 66, 67])
     assert type(string(a)) is str and string(a) == 'ABC'
+    assert string(a, 8).startswith('ABC')   # may contain additional garbage
 
 def test_string_wchar():
     BWChar = new_primitive_type("wchar_t")
@@ -1265,7 +1300,7 @@
     BArray = new_array_type(new_pointer_type(BWChar), None)
     a = newp(BArray, [u'A', u'B', u'C'])
     assert type(string(a)) is unicode and string(a) == u'ABC'
-    assert string(a, 10) == u'ABC'
+    assert string(a, 8).startswith(u'ABC')  # may contain additional garbage
 
 def test_string_typeerror():
     BShort = new_primitive_type("short")