diff --git a/.github/workflows/build_and_test.yml b/.github/workflows/build_and_test.yml
new file mode 100644
index 0000000..4206a93
--- /dev/null
+++ b/.github/workflows/build_and_test.yml
@@ -0,0 +1,18 @@
+name: Build & Test
+
+on:
+  pull_request:
+    branches:
+      - '*'
+  push:
+    branches:
+      - master
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - name: Build and Test
+      run: |
+        ./configure && make && make test && export LD_LIBRARY_PATH=./lib:$LD_LIBRARY_PATH && make run
diff --git a/.gitignore b/.gitignore
index 128fee0..aa4bd88 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,5 +2,6 @@
 Makefile
 lib/
 objs/
+bin/
 build/
 conf/melon.conf
diff --git a/configure b/configure
index 1637310..4182e10 100755
--- a/configure
+++ b/configure
@@ -432,7 +432,7 @@ generate_Makefile() {
         echo "compile: MKDIR \$(OBJS) \$(MELONSO) \$(MELONA)" >> Makefile
     fi
     echo "clean:" >> Makefile
-    echo -e "\trm -fr objs lib Makefile" >> Makefile
+    echo -e "\trm -fr objs lib bin Makefile" >> Makefile
     echo "MKDIR :" >> Makefile
     echo -e "\ttest -d objs || mkdir objs" >> Makefile
     echo -e "\ttest -d lib || mkdir lib" >> Makefile
@@ -462,6 +462,59 @@ generate_Makefile() {
     echo -e "\ttest -d $install_path/conf || cp -fr conf $install_path" >> Makefile
     echo -e "\ttest -d $melang_script_path/trace || cp -fr trace $melang_script_path" >> Makefile
 
+    echo "TEST_MKDIR: " >> Makefile
+    echo -e "\ttest -d bin || mkdir -p bin" >> Makefile
+    for fname in ${select_files[@]}
+    do
+        fname=$(echo $fname | sed 's/^src\/mln_//')
+        binname=`echo $fname | cut -d '.' -f 1`
+        fname="t/$fname"
+        if [ -f $fname ]; then
+            echo -n "bin/$binname : " >> Makefile
+            for header in `cpp -MM -MG $fname 2> /dev/null`
+            do
+                suffix=`echo $header | cut -d '.' -f 2`
+                if [ $suffix = 'c' ]; then
+                    echo -n $header >> Makefile
+                    echo -n " " >> Makefile
+                    continue
+                fi
+                if [ $suffix != 'h' ]; then
+                    continue
+                fi
+                test -e include/$header && echo -n "include/$header " >> Makefile
+            done
+            echo "" >> Makefile
+
+            echo -e "\t\$(CC) -o \$@ $fname $debug -Iinclude -Llib -lmelon" >> Makefile
+        fi
+    done
+    echo -e "BINS = \\" >> Makefile
+    for fname in ${select_files[@]}
+    do
+        fname=$(echo $fname | sed 's/^src\/mln_//')
+        binname="bin/"`echo $fname | cut -d '.' -f 1`
+        fname="t/$fname"
+        if [ -f $fname ]; then
+            echo "        $binname \\" >> Makefile
+        fi
+    done
+    echo "" >> Makefile
+    echo "test: TEST_MKDIR \$(BINS)" >> Makefile
+    echo "" >> Makefile
+
+    echo "run:" >> Makefile
+    for fname in ${select_files[@]}
+    do
+        fname=$(echo $fname | sed 's/^src\/mln_//')
+        binname="bin/"`echo $fname | cut -d '.' -f 1`
+        fname="t/$fname"
+        if [ -f $fname ]; then
+            echo -e "\t./$binname && \\" >> Makefile
+        fi
+    done
+    echo "echo 'Done'" >> Makefile
+
     for fname in ${select_files[@]}
     do
         objname=`basename $fname | cut -d '.' -f 1`".o"
diff --git a/t/aes.c b/t/aes.c
new file mode 100644
index 0000000..ae4e32e
--- /dev/null
+++ b/t/aes.c
@@ -0,0 +1,33 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include "mln_string.h"
+#include "mln_aes.h"
+
+int main(int argc, char *argv[])
+{
+    mln_aes_t a;
+    char p[] = "1234567890123456";
+    mln_string_t s;
+
+    if (mln_aes_init(&a, (mln_u8ptr_t)"abcdefghijklmnop", M_AES_128) < 0) {
+        fprintf(stderr, "aes init failed\n");
+        return -1;
+    }
+
+    mln_string_set(&s, p);
+    if (mln_aes_encrypt(&a, s.data) < 0) {
+        fprintf(stderr, "aes encrypt failed\n");
+        return -1;
+    }
+    write(STDOUT_FILENO, s.data, s.len);
+    write(STDOUT_FILENO, "\n", 1);
+
+    if (mln_aes_decrypt(&a, s.data) < 0) {
+        fprintf(stderr, "aes decrypt failed\n");
+        return -1;
+    }
+    write(STDOUT_FILENO, s.data, s.len);
+    write(STDOUT_FILENO, "\n", 1);
+
+    return 0;
+}
diff --git a/t/base64.c b/t/base64.c
new file mode 100644
index 0000000..23cf0ad
--- /dev/null
+++ b/t/base64.c
@@ -0,0 +1,33 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include "mln_string.h"
+#include "mln_base64.h"
+
+int main(int argc, char *argv[])
+{
+    mln_string_t text = mln_string("Hello");
+    mln_string_t tmp;
+    mln_u8ptr_t p1, p2;
+    mln_uauto_t len1, len2;
+
+    if (mln_base64_encode(text.data, text.len, &p1, &len1) < 0) {
+        fprintf(stderr, "encode failed\n");
+        return -1;
+    }
+    mln_string_nset(&tmp, p1, len1);
+    write(STDOUT_FILENO, tmp.data, tmp.len);
+    write(STDOUT_FILENO, "\n", 1);
+
+    if (mln_base64_decode(p1, len1, &p2, &len2) < 0) {
+        fprintf(stderr, "decode failed\n");
+        return -1;
+    }
+    mln_string_nset(&tmp, p2, len2);
+    write(STDOUT_FILENO, tmp.data, tmp.len);
+    write(STDOUT_FILENO, "\n", 1);
+
+    mln_base64_free(p1);
+    mln_base64_free(p2);
+
+    return 0;
+}