scripts: Add an option to accept hypervisor argument

Signed-off-by: Muminul Islam <muislam@microsoft.com>

scripts/test-util.sh

@@ -0,0 +1,34 @@
+#!/bin/bash
+hypervisor="kvm"
+cmd_help() {
+    echo ""
+    echo "Cloud Hypervisor $(basename $0)"
+    echo "Usage: $(basename $0) [<args>]"
+    echo ""
+    echo "Available arguments:"
+    echo ""
+    echo "    --hypervisor  Underlying hypervisor. Options kvm, mshv"
+    echo ""
+    echo "    --help        Display this help message."
+    echo ""
+}
+
+process_common_args() {
+    while [ $# -gt 0 ]; do
+	case "$1" in
+            "-h"|"--help")  { cmd_help; exit 1; } ;;
+            "--hypervisor")
+                shift
+                hypervisor="$1"
+                ;;
+            *)
+            # We only care about hypervisor , do nothing for other arguments
+		;;
+	esac
+	shift
+    done
+    if [[ "$hypervisor" != "kvm" ]]; then
+        echo "Hypervisor value must be kvm"
+        exit 1
+    fi
+}