summaryrefslogtreecommitdiff
path: root/src/pal/tests/palsuite/file_io/SetEndOfFile/test2/SetEndOfFile.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/pal/tests/palsuite/file_io/SetEndOfFile/test2/SetEndOfFile.cpp')
-rw-r--r--src/pal/tests/palsuite/file_io/SetEndOfFile/test2/SetEndOfFile.cpp154
1 files changed, 154 insertions, 0 deletions
diff --git a/src/pal/tests/palsuite/file_io/SetEndOfFile/test2/SetEndOfFile.cpp b/src/pal/tests/palsuite/file_io/SetEndOfFile/test2/SetEndOfFile.cpp
new file mode 100644
index 0000000..6b3c050
--- /dev/null
+++ b/src/pal/tests/palsuite/file_io/SetEndOfFile/test2/SetEndOfFile.cpp
@@ -0,0 +1,154 @@
+// 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: SetEndOfFile.c (test 2)
+**
+** Purpose: Tests the PAL implementation of the SetEndOfFile function.
+** This test will attempt to truncate a file
+**
+**
+**===================================================================*/
+
+#include <palsuite.h>
+
+
+const char* szStringTest = "The quick fox jumped over the lazy dog's back.";
+const char* szTextFile = "text.txt";
+
+
+int __cdecl main(int argc, char *argv[])
+{
+ HANDLE hFile = NULL;
+ DWORD dwByteCount = 0;
+ DWORD dwBytesWritten;
+ BOOL bRc = FALSE;
+ char szBuffer[100];
+ DWORD dwBytesRead = 0;
+ FILE *pFile = NULL;
+
+
+ if (0 != PAL_Initialize(argc,argv))
+ {
+ return FAIL;
+ }
+
+ // create a test file
+ hFile = CreateFile(szTextFile,
+ GENERIC_READ | GENERIC_WRITE,
+ FILE_SHARE_READ | FILE_SHARE_WRITE,
+ NULL,
+ OPEN_ALWAYS,
+ FILE_ATTRIBUTE_NORMAL,
+ NULL);
+
+ if(hFile == INVALID_HANDLE_VALUE)
+ {
+ Fail("SetEndOfFile: ERROR -> Unable to create file \"%s\".\n",
+ szTextFile);
+ }
+
+ bRc = WriteFile(hFile, szStringTest, 20, &dwBytesWritten, NULL);
+ if (bRc != TRUE)
+ {
+ Trace("SetEndOfFile: ERROR -> Uable to write to \"%s\".\n",
+ szTextFile);
+ bRc = CloseHandle(hFile);
+ if (bRc != TRUE)
+ {
+ Trace("SetEndOfFile: ERROR -> Unable to close file \"%s\".\n",
+ szTextFile);
+ }
+ PAL_TerminateEx(FAIL);
+ return FAIL;
+ }
+
+ bRc = CloseHandle(hFile);
+ if (bRc != TRUE)
+ {
+ Fail("SetEndOfFile: ERROR -> Unable to close file \"%s\".\n",
+ szTextFile);
+ }
+
+ // open the test file
+ hFile = CreateFile(szTextFile,
+ GENERIC_READ | GENERIC_WRITE,
+ FILE_SHARE_READ | FILE_SHARE_WRITE,
+ NULL,
+ OPEN_EXISTING,
+ FILE_ATTRIBUTE_NORMAL,
+ NULL);
+
+ if(hFile == INVALID_HANDLE_VALUE)
+ {
+ Fail("SetEndOfFile: ERROR -> Unable to open file \"%s\".\n",
+ szTextFile);
+ }
+
+ // read a bit of the file to move the file pointer
+ dwByteCount = 10;
+ bRc = ReadFile(hFile, szBuffer, dwByteCount, &dwBytesRead, NULL);
+ if (bRc != TRUE)
+ {
+ Trace("SetEndOfFile: ERROR -> Uable to read from \"%s\".\n",
+ szTextFile);
+ bRc = CloseHandle(hFile);
+ if (bRc != TRUE)
+ {
+ Trace("SetEndOfFile: ERROR -> Unable to close file \"%s\".\n",
+ szTextFile);
+ }
+ PAL_TerminateEx(FAIL);
+ return FAIL;
+ }
+
+ bRc = SetEndOfFile(hFile);
+ if (bRc != TRUE)
+ {
+ Trace("SetEndOfFile: ERROR -> Uable to set end of file.\n");
+ bRc = CloseHandle(hFile);
+ if (bRc != TRUE)
+ {
+ Trace("SetEndOfFile: ERROR -> Unable to close file \"%s\".\n",
+ szTextFile);
+ }
+ PAL_TerminateEx(FAIL);
+ return FAIL;
+ }
+
+ bRc = CloseHandle(hFile);
+ if (bRc != TRUE)
+ {
+ Fail("SetEndOfFile: ERROR -> Unable to close file \"%s\".\n",
+ szTextFile);
+ }
+
+ // open and read the test file
+ pFile = fopen(szTextFile, "r");
+ if (pFile == NULL)
+ {
+ Fail("SetEndOfFile: ERROR -> fopen was unable to open file \"%s\".\n",
+ szTextFile);
+ }
+
+ // since we truncated the file at 10 characters,
+ // try reading 20 just to be safe
+ memset(szBuffer, 0, 100);
+ fgets(szBuffer, 20, pFile);
+ fclose(pFile);
+ if (strlen(szBuffer) != dwByteCount)
+ {
+ Fail("SetEndOfFile: ERROR -> file apparently not truncated at "
+ "correct position.\n");
+ }
+ if (strncmp(szBuffer, szStringTest, dwByteCount) != 0)
+ {
+ Fail("SetEndOfFile: ERROR -> truncated file contents doesn't "
+ "compare with what should be there\n");
+ }
+
+ PAL_Terminate();
+ return PASS;
+}