1 files changed, 53 insertions, 0 deletions
diff --git a/src/pal/tests/palsuite/pal_specific/PAL_errno/test1/PAL_errno.cpp b/src/pal/tests/palsuite/pal_specific/PAL_errno/test1/PAL_errno.cpp
new file mode 100644
index 0000000000..32e8487d07
--- /dev/null
+++ b/src/pal/tests/palsuite/pal_specific/PAL_errno/test1/PAL_errno.cpp
@@ -0,0 +1,53 @@
+// 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: pal_errno.c
+**
+** Purpose: Positive test the PAL_errno API.
+**          call PAL_errno to retrieve the pointer to 
+**          the per-thread errno value.
+**
+**
+**============================================================*/
+#include <palsuite.h>
+
+int __cdecl main(int argc, char *argv[])
+{
+    int err;
+    FILE *pFile = NULL;
+
+    /*Initialize the PAL environment*/
+    err = PAL_Initialize(argc, argv);
+    if( 0 != err)
+    {
+        return FAIL;
+    }
+    
+    /*Try to open a not-exist file to read to generate an error*/
+    pFile = fopen( "no_exist_file_name", "r" );
+    
+    if( NULL != pFile )
+    {
+        Trace("\nFailed to call fopen to open a not exist for reading, "
+                "an error is expected, but no error occurred\n");
+
+        if( EOF == fclose( pFile ) )
+        {
+            Trace("\nFailed to call fclose to close a file stream\n");
+        }
+        Fail( "Test failed! fopen() Should not have worked!" );
+    }
+
+    /*retrieve the per-thread error value pointer*/
+    if( 2 != errno )
+    {
+        Fail("\nFailed to call PAL_errno API, this value is not correct."
+             " The correct value is ENOENT[2] ( No such file or directory.).\n");
+    }
+    
+    PAL_Terminate();
+    return PASS;
+}