VirtualBox

source: vbox/trunk/src/VBox/Runtime/testcase/tstFile.cpp@ 82968

Last change on this file since 82968 was 82968, checked in by vboxsync, 5 years ago

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1/* $Id: tstFile.cpp 82968 2020-02-04 10:35:17Z vboxsync $ */
2/** @file
3 * IPRT Testcase - File I/O.
4 */
5
6/*
7 * Copyright (C) 2006-2020 Oracle Corporation
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 *
17 * The contents of this file may alternatively be used under the terms
18 * of the Common Development and Distribution License Version 1.0
19 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
20 * VirtualBox OSE distribution, in which case the provisions of the
21 * CDDL are applicable instead of those of the GPL.
22 *
23 * You may elect to license modified versions of this file under the
24 * terms and conditions of either the GPL or the CDDL or both.
25 */
26
27
28/*********************************************************************************************************************************
29* Header Files *
30*********************************************************************************************************************************/
31#include <iprt/test.h>
32#include <iprt/file.h>
33#include <iprt/errcore.h>
34#include <iprt/string.h>
35#include <iprt/stream.h>
36
37
38/*********************************************************************************************************************************
39* Global Variables *
40*********************************************************************************************************************************/
41static const char g_szTestStr[] = "Sausages and bacon for breakfast again!\n";
42static char g_szTestStr2[] =
43"Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut "
44"enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat. Duis aute irure dolor "
45"in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur. Excepteur sint occaecat cupidatat non "
46"proident, sunt in culpa qui officia deserunt mollit anim id est laborum.\n"
47"\n"
48"Curabitur pretium tincidunt lacus. Nulla gravida orci a odio. Nullam varius, turpis et commodo pharetra, est eros bibendum "
49"elit, nec luctus magna felis sollicitudin mauris. Integer in mauris eu nibh euismod gravida. Duis ac tellus et risus "
50"vulputate vehicula. Donec lobortis risus a elit. Etiam tempor. Ut ullamcorper, ligula eu tempor congue, eros est euismod "
51"turpis, id tincidunt sapien risus a quam. Maecenas fermentum consequat mi. Donec fermentum. Pellentesque malesuada nulla a mi. "
52"Duis sapien sem, aliquet nec, commodo eget, consequat quis, neque. Aliquam faucibus, elit ut dictum aliquet, felis nisl "
53"adipiscing sapien, sed malesuada diam lacus eget erat. Cras mollis scelerisque nunc. Nullam arcu. Aliquam consequat. Curabitur "
54"augue lorem, dapibus quis, laoreet et, pretium ac, nisi. Aenean magna nisl, mollis quis, molestie eu, feugiat in, orci. In hac "
55"habitasse platea dictumst.\n";
56
57
58static void tstAppend(RTFILE hFile)
59{
60 char achBuf[sizeof(g_szTestStr2) * 4];
61
62 /*
63 * Write some stuff and read it back.
64 */
65 size_t const cbWrite1 = sizeof(g_szTestStr2) / 4;
66 RTTESTI_CHECK_RC_RETV(RTFileWrite(hFile, g_szTestStr2, sizeof(g_szTestStr2) - 1, NULL), VINF_SUCCESS);
67
68 size_t const offWrite2 = cbWrite1;
69 size_t const cbWrite2 = sizeof(g_szTestStr2) / 2;
70 RTTESTI_CHECK_RC_RETV(RTFileSeek(hFile, 0, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
71 RTTESTI_CHECK_RC_RETV(RTFileWrite(hFile, &g_szTestStr2[offWrite2], cbWrite2, NULL), VINF_SUCCESS);
72
73 RTTESTI_CHECK_RC_RETV(RTFileSeek(hFile, 0, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
74 RTTESTI_CHECK_RC_RETV(RTFileRead(hFile, achBuf, cbWrite1 + cbWrite2, NULL), VINF_SUCCESS);
75 if (memcmp(achBuf, g_szTestStr2, cbWrite1 + cbWrite2) != 0)
76 RTTestIFailed("Read back #1 failed (%#zx + %#zx)", cbWrite1, cbWrite2);
77
78#if 1 //ndef RT_OS_WINDOWS
79 /*
80 * Truncate the file and write some more. This is problematic on windows,
81 * we currently have a questionable hack in place to make this work.
82 */
83 RTTESTI_CHECK_RC_RETV(RTFileSetSize(hFile, 0), VINF_SUCCESS);
84
85 size_t const offWrite3 = cbWrite1 + cbWrite2;
86 size_t const cbWrite3 = sizeof(g_szTestStr2) - 1 - offWrite3;
87 RTTESTI_CHECK_RC_RETV(RTFileSeek(hFile, 0, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
88 RTTESTI_CHECK_RC_RETV(RTFileWrite(hFile, &g_szTestStr2[offWrite3], cbWrite3, NULL), VINF_SUCCESS);
89
90 RTTESTI_CHECK_RC_RETV(RTFileSeek(hFile, 0, RTFILE_SEEK_BEGIN, NULL), VINF_SUCCESS);
91 RTTESTI_CHECK_RC_RETV(RTFileRead(hFile, achBuf, cbWrite3, NULL), VINF_SUCCESS);
92 if (memcmp(achBuf, &g_szTestStr2[offWrite3], cbWrite3) != 0)
93 RTTestIFailed("Read back #2 failed (%#zx)", cbWrite3);
94#endif
95}
96
97
98static void tstBasics(RTFILE hFile)
99{
100 RTFOFF cbMax = -2;
101 int rc = RTFileQueryMaxSizeEx(hFile, &cbMax);
102 if (rc != VERR_NOT_IMPLEMENTED)
103 {
104 if (rc != VINF_SUCCESS)
105 RTTestIFailed("RTFileQueryMaxSizeEx failed: %Rrc", rc);
106 else
107 {
108 RTTESTI_CHECK_MSG(cbMax > 0, ("cbMax=%RTfoff", cbMax));
109 RTTESTI_CHECK_MSG(cbMax == RTFileGetMaxSize(hFile),
110 ("cbMax=%RTfoff, RTFileGetMaxSize->%RTfoff", cbMax, RTFileGetMaxSize(hFile)));
111 }
112 }
113
114 /* grow file beyond 2G */
115 rc = RTFileSetSize(hFile, _2G + _1M);
116 if (RT_FAILURE(rc))
117 RTTestIFailed("Failed to grow file #1 to 2.001GB. rc=%Rrc", rc);
118 else
119 {
120 uint64_t cb;
121 RTTESTI_CHECK_RC(RTFileQuerySize(hFile, &cb), VINF_SUCCESS);
122 RTTESTI_CHECK_MSG(cb == _2G + _1M, ("RTFileQuerySize return %RX64 bytes, expected %RX64.", cb, _2G + _1M));
123
124 /*
125 * Try some writes at the beginning of the file.
126 */
127 uint64_t offFile = RTFileTell(hFile);
128 RTTESTI_CHECK_MSG(offFile == 0, ("RTFileTell -> %#RX64, expected 0 (#1)", offFile));
129
130 size_t cbWritten = 0;
131 while (cbWritten < sizeof(g_szTestStr))
132 {
133 size_t cbWrittenPart;
134 rc = RTFileWrite(hFile, &g_szTestStr[cbWritten], sizeof(g_szTestStr) - cbWritten, &cbWrittenPart);
135 if (RT_FAILURE(rc))
136 break;
137 cbWritten += cbWrittenPart;
138 }
139 if (RT_FAILURE(rc))
140 RTTestIFailed("Failed to write to file #1 at offset 0. rc=%Rrc\n", rc);
141 else
142 {
143 /* check that it was written correctly. */
144 rc = RTFileSeek(hFile, 0, RTFILE_SEEK_BEGIN, NULL);
145 if (RT_FAILURE(rc))
146 RTTestIFailed("Failed to seek offset 0 in file #1. rc=%Rrc\n", rc);
147 else
148 {
149 char szReadBuf[sizeof(g_szTestStr)];
150 size_t cbRead = 0;
151 while (cbRead < sizeof(g_szTestStr))
152 {
153 size_t cbReadPart;
154 rc = RTFileRead(hFile, &szReadBuf[cbRead], sizeof(g_szTestStr) - cbRead, &cbReadPart);
155 if (RT_FAILURE(rc))
156 break;
157 cbRead += cbReadPart;
158 }
159 if (RT_FAILURE(rc))
160 RTTestIFailed("Failed to read from file #1 at offset 0. rc=%Rrc\n", rc);
161 else
162 {
163 if (!memcmp(szReadBuf, g_szTestStr, sizeof(g_szTestStr)))
164 RTPrintf("tstFile: head write ok\n");
165 else
166 RTTestIFailed("Data read from file #1 at offset 0 differs from what we wrote there.\n");
167 }
168 }
169 }
170
171 /*
172 * Try some writes at the end of the file.
173 */
174 rc = RTFileSeek(hFile, _2G + _1M, RTFILE_SEEK_BEGIN, NULL);
175 if (RT_FAILURE(rc))
176 RTTestIFailed("Failed to seek to _2G + _1M in file #1. rc=%Rrc\n", rc);
177 else
178 {
179 offFile = RTFileTell(hFile);
180 if (offFile != _2G + _1M)
181 RTTestIFailed("RTFileTell -> %#llx, expected %#llx (#2)\n", offFile, _2G + _1M);
182 else
183 {
184 cbWritten = 0;
185 while (cbWritten < sizeof(g_szTestStr))
186 {
187 size_t cbWrittenPart;
188 rc = RTFileWrite(hFile, &g_szTestStr[cbWritten], sizeof(g_szTestStr) - cbWritten, &cbWrittenPart);
189 if (RT_FAILURE(rc))
190 break;
191 cbWritten += cbWrittenPart;
192 }
193 if (RT_FAILURE(rc))
194 RTTestIFailed("Failed to write to file #1 at offset 2G + 1M. rc=%Rrc\n", rc);
195 else
196 {
197 rc = RTFileSeek(hFile, offFile, RTFILE_SEEK_BEGIN, NULL);
198 if (RT_FAILURE(rc))
199 RTTestIFailed("Failed to seek offset %RX64 in file #1. rc=%Rrc\n", offFile, rc);
200 else
201 {
202 char szReadBuf[sizeof(g_szTestStr)];
203 size_t cbRead = 0;
204 while (cbRead < sizeof(g_szTestStr))
205 {
206 size_t cbReadPart;
207 rc = RTFileRead(hFile, &szReadBuf[cbRead], sizeof(g_szTestStr) - cbRead, &cbReadPart);
208 if (RT_FAILURE(rc))
209 break;
210 cbRead += cbReadPart;
211 }
212 if (RT_FAILURE(rc))
213 RTTestIFailed("Failed to read from file #1 at offset 2G + 1M. rc=%Rrc\n", rc);
214 else
215 {
216 if (!memcmp(szReadBuf, g_szTestStr, sizeof(g_szTestStr)))
217 RTPrintf("tstFile: tail write ok\n");
218 else
219 RTTestIFailed("Data read from file #1 at offset 2G + 1M differs from what we wrote there.\n");
220 }
221 }
222 }
223 }
224 }
225
226 /*
227 * Some general seeking around.
228 */
229 rc = RTFileSeek(hFile, _2G + 1, RTFILE_SEEK_BEGIN, NULL);
230 if (RT_FAILURE(rc))
231 RTTestIFailed("Failed to seek to _2G + 1 in file #1. rc=%Rrc\n", rc);
232 else
233 {
234 offFile = RTFileTell(hFile);
235 if (offFile != _2G + 1)
236 RTTestIFailed("RTFileTell -> %#llx, expected %#llx (#3)\n", offFile, _2G + 1);
237 }
238
239 /* seek end */
240 rc = RTFileSeek(hFile, 0, RTFILE_SEEK_END, NULL);
241 if (RT_FAILURE(rc))
242 RTTestIFailed("Failed to seek to end of file #1. rc=%Rrc\n", rc);
243 else
244 {
245 offFile = RTFileTell(hFile);
246 if (offFile != _2G + _1M + sizeof(g_szTestStr)) /* assuming tail write was ok. */
247 RTTestIFailed("RTFileTell -> %#RX64, expected %#RX64 (#4)\n", offFile, _2G + _1M + sizeof(g_szTestStr));
248 }
249
250 /* seek start */
251 rc = RTFileSeek(hFile, 0, RTFILE_SEEK_BEGIN, NULL);
252 if (RT_FAILURE(rc))
253 RTTestIFailed("Failed to seek to end of file #1. rc=%Rrc\n", rc);
254 else
255 {
256 offFile = RTFileTell(hFile);
257 if (offFile != 0)
258 RTTestIFailed("RTFileTell -> %#llx, expected 0 (#5)\n", offFile);
259 }
260 }
261}
262
263int main()
264{
265 RTTEST hTest;
266 RTEXITCODE rcExit = RTTestInitAndCreate("tstRTFile", &hTest);
267 if (rcExit != RTEXITCODE_SUCCESS)
268 return rcExit;
269 RTTestBanner(hTest);
270
271 /*
272 * Some basic tests.
273 */
274 RTTestSub(hTest, "Basics");
275 int rc = -1;
276 RTFILE hFile = NIL_RTFILE;
277 RTTESTI_CHECK_RC(rc = RTFileOpen(&hFile, "tstFile#1.tst", RTFILE_O_READWRITE | RTFILE_O_CREATE_REPLACE | RTFILE_O_DENY_NONE),
278 VINF_SUCCESS);
279 if (RT_SUCCESS(rc))
280 {
281 tstBasics(hFile);
282 RTTESTI_CHECK_RC(RTFileClose(hFile), VINF_SUCCESS);
283 RTTESTI_CHECK_RC(RTFileDelete("tstFile#1.tst"), VINF_SUCCESS);
284 }
285
286 /*
287 * Test appending & truncation.
288 */
289 RTTestSub(hTest, "Append");
290 hFile = NIL_RTFILE;
291 RTTESTI_CHECK_RC(rc = RTFileOpen(&hFile, "tstFile#2.tst",
292 RTFILE_O_READWRITE | RTFILE_O_CREATE_REPLACE | RTFILE_O_DENY_NONE | RTFILE_O_APPEND),
293 VINF_SUCCESS);
294 if (RT_SUCCESS(rc))
295 {
296 tstAppend(hFile);
297 RTTESTI_CHECK_RC(RTFileClose(hFile), VINF_SUCCESS);
298 RTTESTI_CHECK_RC(RTFileDelete("tstFile#2.tst"), VINF_SUCCESS);
299 }
300
301 /*
302 * Done.
303 */
304 return RTTestSummaryAndDestroy(hTest);
305}
306
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