Add wasm-mutator-fuzz test (#3420)

tests/fuzz/wasm-mutator-fuzz/smith_wasm.sh

@@ -0,0 +1,58 @@
+#!/bin/bash
+#
+# Copyright (C) 2019 Intel Corporation.  All rights reserved.
+# SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+#
+
+
+# 1.check parameter
+if [ ! $1 ]; then
+	echo "Parameter is empty, please enter parameter !"
+    exit 
+fi
+
+# 2.check dir
+buildPath="./build"
+corpusPath="$buildPath/CORPUS_DIR"
+if [[ ! -d "$buildPath" ]]; then
+    echo "auto create the build folder !"
+    mkdir build
+else # build Folder exists
+    if [[ -d "$buildPath" ]]; then # CORPUS_DIR exists
+        rm -rf $corpusPath
+    fi
+fi
+
+# 3.change dir
+# cd build && mkdir CORPUS_DIR && cd CORPUS_DIR
+cd build && mkdir CORPUS_DIR && cd CORPUS_DIR
+
+# 4.generate *.wasm file
+echo "Generate $@ files according to user requirements"
+
+for((i=1; i<($@+1); i++));
+do
+head -c 100 /dev/urandom | wasm-tools smith -o test_$i.wasm
+done
+
+# 5.check wasm file
+dir=$(pwd)              
+d=$(find . ! -name "." -type d -prune -o -type f -name "*.wasm" -print) 
+#echo "current dir=$dir" 
+num=0
+
+for((i=1; i<($@+1); i++));
+do
+    wasmFile="test_$i.wasm"
+    if [[ ! -f "$wasmFile" ]]; then
+        echo "The file $wasmFile is not exists !"
+    else
+        let "num++"
+    fi
+done
+
+echo "$@ user requirements, $num actually generated !"
+
+if [ $num == $@ ]; then echo "Wasm file generated successfully !"
+else echo "Wasm file generated faild !"
+fi