summaryrefslogtreecommitdiff
path: root/src/pal/tests/palsuite/c_runtime/_wfopen/test3/test3.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/pal/tests/palsuite/c_runtime/_wfopen/test3/test3.cpp')
-rw-r--r--src/pal/tests/palsuite/c_runtime/_wfopen/test3/test3.cpp70
1 files changed, 70 insertions, 0 deletions
diff --git a/src/pal/tests/palsuite/c_runtime/_wfopen/test3/test3.cpp b/src/pal/tests/palsuite/c_runtime/_wfopen/test3/test3.cpp
new file mode 100644
index 0000000..3b67818
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_wfopen/test3/test3.cpp
@@ -0,0 +1,70 @@
+// 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: test3.c
+**
+** Purpose: Tests the PAL implementation of the _wfopen function.
+** Test to ensure that you can write to a 'w+' mode file.
+** And that you can read from a 'w+' mode file.
+**
+** Depends:
+** fprintf
+** fseek
+** 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 writeplus[] = {'w','+','\0'};
+
+ if (PAL_Initialize(argc, argv))
+ {
+ return FAIL;
+ }
+
+
+ /* Open a file with 'w+' mode */
+ if( (fp = _wfopen( filename, writeplus )) == 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(fseek(fp, 0, SEEK_SET))
+ {
+ Fail("ERROR: fseek failed, and this test depends on it.");
+ }
+
+ /* Attempt to read from the 'w+' only file, should pass */
+ if(fgets(buffer,10,fp) == NULL)
+ {
+ Fail("ERROR: Tried to READ from a file with 'w+' mode set. "
+ "This should succeed, but fgets returned NULL. Either fgets "
+ "or fopen is broken.");
+ }
+
+ PAL_Terminate();
+ return PASS;
+}
+
+