1 /*
2  * Copyright 2013 Google Inc.
3  *
4  * Use of this source code is governed by a BSD-style license that can be
5  * found in the LICENSE file.
6  */
7 
8 #include "SkTFitsIn.h"
9 #include "SkTypes.h"
10 #include "Test.h"
11 
12 #include <limits>
13 
14 #define TEST(S, s, D, expected) REPORTER_ASSERT(reporter, (SkTFitsIn<D>((S)(s)) == (expected)))
15 
DEF_TEST(FitsIn,reporter)16 DEF_TEST(FitsIn, reporter) {
17     TEST(int32_t,  1, int8_t, true);
18     TEST(int32_t, -1, int8_t, true);
19     TEST(int32_t,  (int32_t)(std::numeric_limits<int8_t>::max)(),    int8_t, true);
20     TEST(int32_t, ((int32_t)(std::numeric_limits<int8_t>::max)())+1, int8_t, false);
21     TEST(int32_t,  (int32_t)(std::numeric_limits<int8_t>::min)(),    int8_t, true);
22     TEST(int32_t, (int32_t)((std::numeric_limits<int8_t>::min)())-1, int8_t, false);
23 
24     TEST(int32_t,  1, uint8_t, true);
25     TEST(int32_t, -1, uint8_t, false);
26     TEST(int32_t,  (int32_t)(std::numeric_limits<uint8_t>::max)(),    uint8_t, true);
27     TEST(int32_t, ((int32_t)(std::numeric_limits<uint8_t>::max)())+1, uint8_t, false);
28     TEST(int32_t,  0, uint8_t, true);
29     TEST(int32_t, -1, uint8_t, false);
30     TEST(int32_t, -127, uint8_t, false);
31     TEST(int32_t, -128, uint8_t, false);
32 
33     TEST(int32_t, 1000, int8_t, false);
34     TEST(int32_t, 1000, uint8_t, false);
35 
36     TEST(int32_t, 1, int32_t, true);
37     TEST(int32_t, -1, int32_t, true);
38     TEST(int32_t, 1, uint32_t, true);
39     TEST(int32_t, -1, uint32_t, false);
40 
41     TEST(int32_t, 1, int64_t, true);
42     TEST(int32_t, -1, int64_t, true);
43     TEST(int32_t, 1, uint64_t, true);
44     TEST(int32_t, -1, uint64_t, false);
45 
46     TEST(uint32_t, 1, int8_t, true);
47     TEST(uint32_t, 1, uint8_t, true);
48     TEST(uint32_t, 1, int32_t, true);
49     TEST(uint32_t, 1, uint32_t, true);
50     TEST(uint32_t, 1, int64_t, true);
51     TEST(uint32_t, 1, uint64_t, true);
52 
53     TEST(uint32_t, (std::numeric_limits<uint32_t>::max)(), int8_t, false);
54     TEST(uint32_t, (std::numeric_limits<uint32_t>::max)(), uint8_t, false);
55     TEST(uint32_t, (std::numeric_limits<uint32_t>::max)(), int32_t, false);
56     TEST(uint32_t, (std::numeric_limits<uint32_t>::max)(), uint32_t, true);
57     TEST(uint32_t, (std::numeric_limits<uint32_t>::max)(), int64_t, true);
58     TEST(uint32_t, (std::numeric_limits<uint32_t>::max)(), uint64_t, true);
59 
60     TEST(uint64_t, 1, int8_t, true);
61     TEST(uint64_t, 1, uint8_t, true);
62     TEST(uint64_t, 1, int32_t, true);
63     TEST(uint64_t, 1, uint32_t, true);
64     TEST(uint64_t, 1, int64_t, true);
65     TEST(uint64_t, 1, uint64_t, true);
66 
67     // Uncommenting the following should cause compile failures.
68     //TEST(float, 1, uint64_t, true);
69 }
70