add test case and its driver for HIP_VISIBLE_DEVICES/CUDA_VISIBLE_DEVICES

hipamd/tests/src/hipEnvVarDriver.cpp

@@ -0,0 +1,38 @@
+/* Copyright (c) 2015-2016 Advanced Micro Devices, Inc. All rights reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy of this software and
+associated documentation files (the "Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the
+following conditions:
+
+The above copyright notice and this permission notice shall be included in all copies or substantial
+portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT
+LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO
+EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
+THE USE OR OTHER DEALINGS IN TcHE SOFTWARE. */
+
+#include <iostream>
+#include <stdio.h>
+
+using namespace std;
+
+int main() {
+    FILE *in;
+    char buff[512];
+
+    if(!(in = popen("ls -sail", "r"))){
+        return 1;
+    }
+
+    while(fgets(buff, sizeof(buff), in)!=NULL){
+        cout << buff;
+    }
+    pclose(in);
+
+    return 0;
+
+}