diff options
Diffstat (limited to 'src/pal/tests/palsuite/file_io/SetEndOfFile/test5/test5.c')
| -rw-r--r-- | src/pal/tests/palsuite/file_io/SetEndOfFile/test5/test5.c | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/src/pal/tests/palsuite/file_io/SetEndOfFile/test5/test5.c b/src/pal/tests/palsuite/file_io/SetEndOfFile/test5/test5.c new file mode 100644 index 0000000000..7000d1af15 --- /dev/null +++ b/src/pal/tests/palsuite/file_io/SetEndOfFile/test5/test5.c @@ -0,0 +1,183 @@ +// Licensed to the .NET Foundation under one or more agreements. +// The .NET Foundation licenses this file to you under the MIT license. +// See the LICENSE file in the project root for more information. + +/*===================================================================== +** +** Source: test5.c +** +** Purpose: Tests the PAL implementation of the SetEndOfFile function. +** Test attempts to read the number of characters up to +** the EOF pointer, which was specified. +** +** +**===================================================================*/ + +#include <palsuite.h> + +int __cdecl main(int argc, char *argv[]) +{ + HANDLE hFile = NULL; + DWORD dwBytesWritten; + DWORD retCode; + BOOL bRc = FALSE; + char szBuffer[256]; + DWORD dwBytesRead = 0; + char testFile[] = "testfile.tmp"; + char testString[] = "watch what happens"; + LONG shiftAmount = 10; + + /* Initialize the PAL. + */ + if (0 != PAL_Initialize(argc,argv)) + { + return FAIL; + } + + /* Initialize the buffer. + */ + memset(szBuffer, 0, 256); + + /* Create a file to test with. + */ + hFile = CreateFile(testFile, + GENERIC_WRITE|GENERIC_READ, + FILE_SHARE_WRITE|FILE_SHARE_READ, + NULL, + CREATE_ALWAYS, + FILE_ATTRIBUTE_NORMAL, + NULL); + + if(hFile == INVALID_HANDLE_VALUE) + { + Fail("ERROR:%u: Unable to create file \"%s\".\n", + GetLastError(), + testFile); + } + + /* Write to the File handle. + */ + bRc = WriteFile(hFile, + testString, + strlen(testString), + &dwBytesWritten, + NULL); + + if (bRc == FALSE) + { + Trace("ERROR:%u: Unable to write to file handle " + "hFile=0x%lx\n", + GetLastError(), + hFile); + if (!CloseHandle(hFile)) + { + Fail("ERROR:%u%: Unable to close handle 0x%lx.\n", + GetLastError(), + hFile); + } + Fail(""); + } + + /* Set the file pointer to shiftAmount bytes from the front of the file + */ + retCode = SetFilePointer(hFile, shiftAmount, NULL, FILE_BEGIN); + if(retCode == INVALID_SET_FILE_POINTER) + { + Trace("ERROR:%u: Unable to set the file pointer to %d\n", + GetLastError(), + shiftAmount); + if (!CloseHandle(hFile)) + { + Fail("ERROR:%u%: Unable to close handle 0x%lx.\n", + GetLastError(), + hFile); + } + Fail(""); + } + + /* set the end of file pointer to 'shiftAmount' */ + bRc = SetEndOfFile(hFile); + if (bRc == FALSE) + { + Trace("ERROR:%u: Unable to set file pointer of file handle 0x%lx.\n", + GetLastError(), + hFile); + if (!CloseHandle(hFile)) + { + Fail("ERROR:%u%: Unable to close handle 0x%lx.\n", + GetLastError(), + hFile); + } + Fail(""); + } + + /* Set the file pointer to 10 bytes from the front of the file + */ + retCode = SetFilePointer(hFile, (LONG)NULL, NULL, FILE_BEGIN); + if(retCode == INVALID_SET_FILE_POINTER) + { + Trace("ERROR:%u: Unable to set the file pointer to %d\n", + GetLastError(), + FILE_BEGIN); + if (!CloseHandle(hFile)) + { + Fail("ERROR:%u%: Unable to close handle 0x%lx.\n", + GetLastError(), + hFile); + } + Fail(""); + } + + /* Attempt to read the entire string, 'testString' from a file + * that has it's end of pointer set at shiftAmount; + */ + bRc = ReadFile(hFile, + szBuffer, + strlen(testString), + &dwBytesRead, + NULL); + + if (bRc == FALSE) + { + Trace("ERROR:%u: Unable to read from file handle 0x%lx.\n", + GetLastError(), + hFile); + if (!CloseHandle(hFile)) + { + Fail("ERROR:%u%: Unable to close handle 0x%lx.\n", + GetLastError(), + hFile); + } + Fail(""); + } + + /* Confirm the number of bytes read with that requested. + */ + if (dwBytesRead != shiftAmount) + { + Trace("ERROR: The number of bytes read \"%d\" is not equal to the " + "number that should have been written \"%d\".\n", + dwBytesRead, + shiftAmount); + if (!CloseHandle(hFile)) + { + Fail("ERROR:%u%: Unable to close handle 0x%lx.\n", + GetLastError(), + hFile); + } + Fail(""); + } + + bRc = CloseHandle(hFile); + if(!bRc) + { + Fail("ERROR:%u CloseHandle failed to close the handle\n", + GetLastError()); + } + + /* Terminate the PAL. + */ + PAL_Terminate(); + return PASS; +} + |