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Diffstat (limited to 'src/pal/tests/palsuite/c_runtime/_wfopen/test4/test4.c')
-rw-r--r-- | src/pal/tests/palsuite/c_runtime/_wfopen/test4/test4.c | 88 |
1 files changed, 88 insertions, 0 deletions
diff --git a/src/pal/tests/palsuite/c_runtime/_wfopen/test4/test4.c b/src/pal/tests/palsuite/c_runtime/_wfopen/test4/test4.c new file mode 100644 index 0000000000..b80db180ef --- /dev/null +++ b/src/pal/tests/palsuite/c_runtime/_wfopen/test4/test4.c @@ -0,0 +1,88 @@ +// +// Copyright (c) Microsoft. All rights reserved. +// Licensed under the MIT license. See LICENSE file in the project root for full license information. +// + +/*===================================================================== +** +** Source: test4.c +** +** Purpose: Tests the PAL implementation of the _wfopen function. +** Test to ensure that you can't write to a 'r' mode file. +** And that you can read from a 'r' mode file. +** +** Depends: +** fprintf +** fclose +** fgets +** + +** +**===================================================================*/ + +#define UNICODE + +#include <palsuite.h> + +int __cdecl main(int argc, char **argv) +{ + + FILE *fp; + char buffer[128]; + WCHAR filename[] = {'t','e','s','t','f','i','l','e','\0'}; + WCHAR write[] = {'w','\0'}; + WCHAR read[] = {'r','\0'}; + + if (PAL_Initialize(argc, argv)) + { + return FAIL; + } + + + /* Open a file with 'w' mode */ + if( (fp = _wfopen( filename, write )) == NULL ) + { + Fail( "ERROR: The file failed to open with 'w' mode.\n" ); + } + + /* Write some text to the file */ + if(fprintf(fp,"%s","some text") <= 0) + { + Fail("ERROR: Attempted to WRITE to a file opened with 'w' mode " + "but fprintf failed. Either fopen or fprintf have problems."); + } + + if(fclose(fp)) + { + Fail("ERROR: Attempted to close a file, but fclose failed. " + "This test depends upon it."); + } + + /* Open a file with 'r' mode */ + if( (fp = _wfopen( filename, read )) == NULL ) + { + Fail( "ERROR: The file failed to open with 'r' mode.\n" ); + } + + /* Attempt to read from the 'r' only file, should pass */ + if(fgets(buffer,10,fp) == NULL) + { + Fail("ERROR: Tried to READ from a file with 'r' mode set. " + "This should succeed, but fgets returned NULL. Either fgets " + "or fopen is broken."); + } + + /* Write some text to the file */ + if(fprintf(fp,"%s","some text") > 0) + { + Fail("ERROR: Attempted to WRITE to a file opened with 'r' mode " + "but fprintf succeeded It should have failed. " + "Either fopen or fprintf have problems."); + } + + + PAL_Terminate(); + return PASS; +} + + |