From 4b4aad7217d3292650e77eec2cf4c198ea9c3b4b Mon Sep 17 00:00:00 2001
From: Jiyoung Yun <jy910.yun@samsung.com>
Date: Wed, 23 Nov 2016 19:09:09 +0900
Subject: Imported Upstream version 1.1.0

---
 .../tests/palsuite/c_runtime/_wfopen/test7/test7.c | 119 +++++++++++++++++++++
 1 file changed, 119 insertions(+)
 create mode 100644 src/pal/tests/palsuite/c_runtime/_wfopen/test7/test7.c

(limited to 'src/pal/tests/palsuite/c_runtime/_wfopen/test7/test7.c')

diff --git a/src/pal/tests/palsuite/c_runtime/_wfopen/test7/test7.c b/src/pal/tests/palsuite/c_runtime/_wfopen/test7/test7.c
new file mode 100644
index 0000000000..0a889adc8a
--- /dev/null
+++ b/src/pal/tests/palsuite/c_runtime/_wfopen/test7/test7.c
@@ -0,0 +1,119 @@
+// 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:  test7.c
+**
+** Purpose: Tests the PAL implementation of the _wfopen function. 
+**          Test to ensure that you can write to an 'a+' mode file.
+**          And that you can read from a 'a+' mode file.
+**
+** Depends:
+**      fprintf
+**      fgets
+**      fseek
+**  
+
+**
+**===================================================================*/
+#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 filename2[] = {'t','e','s','t','f','i','l','e','2','\0'};
+    WCHAR appendplus[] = {'a','+','\0'};
+  
+    if (PAL_Initialize(argc, argv))
+    {
+        return FAIL;
+    }
+
+  
+    /* Open a file with 'a+' mode */
+    if( (fp = _wfopen( filename, appendplus )) == NULL )
+    {
+        Fail( "ERROR: The file failed to open with 'a+' 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 'a+' 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 'a+' only file, should succeed */
+    if(fgets(buffer,10,fp) == NULL)
+    {
+        Fail("ERROR: Tried to READ from a file with 'a+' mode set. "
+               "This should pass, but fgets returned failure.  Either fgets "
+               "or fopen is broken.");
+    }
+
+
+    /* Attempt to write to a file after using 'a+' and fseek */
+    fp = _wfopen(filename2, appendplus);
+    if(fp == NULL)
+    {
+        Fail("ERROR: _wfopen failed to be created with 'a+' mode.\n");
+    }
+
+    /* write text to the file initially */
+    if(fprintf(fp,"%s","abcd") <= 0)
+    {
+        Fail("ERROR: Attempted to WRITE to a file opened with 'a+' mode "
+            "but fprintf failed.  Either fopen or fprintf have problems.\n");
+    }
+
+    /* set the pointer to the front of the file */
+    if(fseek(fp, 0, SEEK_SET))
+    {
+        Fail("ERROR: fseek failed, and this test depends on it.\n");
+    }
+
+    /* using 'a+' should still write to the end of the file, not the front */
+    if(fputs("efgh",fp) < 0)
+    {
+        Fail("ERROR: Attempted to WRITE to a file opened with 'a+' mode "
+            "but fputs failed.\n");
+    }
+
+    /* set the pointer to the front of the file */
+    if(fseek(fp, 0, SEEK_SET))
+    {
+        Fail("ERROR: fseek failed, and this test depends on it.\n");
+    }
+
+    /* Attempt to read from the 'a+' only file, should succeed */
+    if(fgets(buffer,10,fp) == NULL)
+    {
+        Fail("ERROR: Tried to READ from a file with 'a+' mode set. "
+               "This should pass, but fgets returned failure.  Either fgets "
+               "or fopen is broken.\n");
+    }
+
+    /* Compare what was read and what should have been in the file */
+    if(memcmp(buffer,"abcdefgh",8))
+    {
+        Fail("ERROR: The string read should have equaled 'abcdefgh' "
+            "but instead it is %s\n", buffer);
+    }
+
+    PAL_Terminate();
+    return PASS;
+}
+   
+
-- 
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