ReactOS  0.4.13-dev-235-g7373cb3
StrFormatByteSizeW.c
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1 /*
2  * Copyright 2017 Doug Lyons
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2.1 of the License, or (at your option) any later version.
8  *
9  * This library is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with this library; if not, write to the Free Software
16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
17  */
18 
19 /* Documentation: https://msdn.microsoft.com/en-us/library/windows/desktop/bb759975(v=vs.85).aspx */
20 
21 #include <apitest.h>
22 #include <shlwapi.h>
23 #include <strsafe.h>
24 
25 #define DO_TEST(exp, str) \
26 do { \
27  StrFormatByteSizeW(exp, lpszDest, cchMax);\
28  if (lpszDest[1] == L',') lpszDest[1] = L'.';\
29  ok(_wcsicmp(lpszDest, (str)) == 0, "Expected %s got %s\n",\
30  wine_dbgstr_w((str)), wine_dbgstr_w((lpszDest)));\
31 } while (0)
32 
35 
36 /* Returns true if the user interface is in English. Note that this does not
37  * presume of the formatting of dates, numbers, etc.
38  * Taken from WINE.
39  */
40 static BOOL is_lang_english(void)
41 {
42  static HMODULE hkernel32 = NULL;
43  static LANGID (WINAPI *pGetThreadUILanguage)(void) = NULL;
44  static LANGID (WINAPI *pGetUserDefaultUILanguage)(void) = NULL;
45 
46  if (!hkernel32)
47  {
48  hkernel32 = GetModuleHandleA("kernel32.dll");
49  pGetThreadUILanguage = (void*)GetProcAddress(hkernel32, "GetThreadUILanguage");
50  pGetUserDefaultUILanguage = (void*)GetProcAddress(hkernel32, "GetUserDefaultUILanguage");
51  }
52 
53  if (pGetThreadUILanguage)
54  return PRIMARYLANGID(pGetThreadUILanguage()) == LANG_ENGLISH;
55  if (pGetUserDefaultUILanguage)
56  return PRIMARYLANGID(pGetUserDefaultUILanguage()) == LANG_ENGLISH;
57 
59 }
60 
61 /* Returns true if the dates, numbers, etc. are formatted using English
62  * conventions.
63  * Taken from WINE.
64  */
65 static BOOL is_locale_english(void)
66 {
67  /* Surprisingly GetThreadLocale() is irrelevant here */
69  /* With the checks in DO_TEST, DUTCH can be used here as well.
70  TODO: Add other combinations that should work. */
71  return langid == LANG_ENGLISH || langid == LANG_DUTCH;
72 }
73 
75 {
76  /* language-dependent test */
78  {
79  skip("An English UI and locale is required for the StrFormat*Size tests\n");
80  return;
81  }
82  DO_TEST(0, L"0 bytes"); // 0x0
83  DO_TEST(1, L"1 bytes"); // 0x1
84  DO_TEST(1024, L"1.00 KB"); // 0x400
85  DO_TEST(1048576, L"1.00 MB"); // 0x100000
86  DO_TEST(1073741824, L"1.00 GB"); // 0x40000000
87  DO_TEST(0x70000000, L"1.75 GB"); // 0x70000000
88  DO_TEST(0x80000000, L"2.00 GB"); // 0x80000000
89  DO_TEST(0x100000000, L"4.00 GB"); // 0x100000000
90  DO_TEST(1099511627776, L"1.00 TB"); // 0x10000000000
91  DO_TEST(1125899906842624, L"1.00 PB"); // 0x4000000000000
92  DO_TEST(1152921504606846976, L"1.00 EB"); // 0x1000000000000000
93  DO_TEST(2305843009213693952, L"2.00 EB"); // 0x2000000000000000
94  DO_TEST(4611686018427387904, L"4.00 EB"); // 0x4000000000000000
95  DO_TEST(0x7fffffffffffffff, L"7.99 EB"); // 0x7fffffffffffffff
96  DO_TEST(0x8000000000000000, L"0 bytes"); // 0x8000000000000000 High Bit Set Here
97  DO_TEST(0xffffffff00000000, L"0 bytes"); // 0xffffffff00000000
98  DO_TEST(0xffffffff00000001, L"1 bytes"); // 0xffffffff00000001
99  DO_TEST(0xffffffff70000000, L"1879048192 bytes"); // 0xffffffff70000000
100  DO_TEST(0xffffffff7fffffff, L"2147483647 bytes"); // 0xffffffff7fffffff
101  DO_TEST(0xffffffff80000000, L"-2147483648 bytes"); // 0xffffffff80000000 // Maximum Negative Number -2.00 GB
102  DO_TEST(0xffffffff80000001, L"-2147483647 bytes"); // 0xffffffff80000001
103  DO_TEST(0xffffffff90000000, L"-1879048192 bytes"); // 0xffffffff90000000
104  DO_TEST(-1073741824, L"-1073741824 bytes"); // 0xffffffffc0000000 -1.00 GB
105  DO_TEST(-1048576, L"-1048576 bytes"); // 0xfffffffffff00000 -1.00 MB
106  DO_TEST(-1024, L"-1024 bytes"); // 0xfffffffffffffc00 -1.00 KB
107  DO_TEST(0xffffffffffffffff, L"-1 bytes"); // 0xffffffffffffffff
108 
109  // Here are some large negative tests and they all return zero bytes
110 
111  DO_TEST(-4294967296, L"0 bytes"); // 0xffffffff00000000
112  DO_TEST(-8589934592, L"0 bytes"); // 0xfffffffe00000000
113  DO_TEST(-17179869184, L"0 bytes"); // 0xfffffffc00000000
114  DO_TEST(-34359738368, L"0 bytes"); // 0xfffffff800000000
115  DO_TEST(-68719476736, L"0 bytes"); // 0xfffffff000000000
116  DO_TEST(-137438953472, L"0 bytes"); // 0xffffffe000000000
117  DO_TEST(-274877906944, L"0 bytes"); // 0xffffffc000000000
118  DO_TEST(-549755813888, L"0 bytes"); // 0xffffff8000000000
119  DO_TEST(-1099511627776, L"0 bytes"); // 0xffffff0000000000
120  DO_TEST(-1152921504606846976, L"0 bytes"); // 0xf000000000000000
121 
122  // These statements create compile errors and seem to be compiler conversion related
123  //DO_TEST(2147483648, L"2.00 GB"); // 2.00 GB & This gives a compile error
124  //DO_TEST(-2147483648, L"0 bytes"); // -2.00 GB & This gives a compile error
125 }
LPWSTR WINAPI StrFormatByteSizeW(LONGLONG llBytes, LPWSTR lpszDest, UINT cchMax)
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START_TEST(StrFormatByteSizeW)
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