diff --git a/test/256.test.js b/test/256.test.js
index face88b..79a642d 100644
--- a/test/256.test.js
+++ b/test/256.test.js
@@ -1,4 +1,6 @@
 var Color = require('..').Colors;
+
+
 console.log();
 console.log();
 console.log(' System colors');
@@ -11,6 +13,7 @@ for (var i = 0; i < 16; i++) {
     if (i === 8) process.stdout.write(' ');
     process.stdout.write(c.valueOf());
 }
+
 console.log();
 console.log();
 console.log();
@@ -58,4 +61,6 @@ console.log();
 function wordwrap(i) {
     i = String(i)
     return i + new Array(5 - i.length).join(' ');
-}
\ No newline at end of file
+}
+
+console.log();
diff --git a/test/group.test.js b/test/group.test.js
new file mode 100644
index 0000000..90ec092
--- /dev/null
+++ b/test/group.test.js
@@ -0,0 +1,24 @@
+
+var color = require('../safe');
+
+console.log()
+console.log(" Group Color:")
+console.log()
+console.log('  =>', color.red.bold('Hello!' + color.yellow.bold('world!') + 'wcj!'))
+console.log('  =>', color.red('red') + ' plain ' + color.blue('blue'));
+console.log('  =>', color.red('red ' + color.underline.yellow('blue') + ' wcj!'));
+console.log('  =>', color.red.magenta_bt.underline('hello'));
+
+// 背景色
+console.log('  =>', color.magenta_b('hello'));
+console.log('  =>', color.magenta_bbt('hello'));
+// 文字颜色
+console.log('  =>', color.magenta('hello'));
+console.log('  =>', color.magenta_bt('hello'));
+// 文字颜色 + 背景色
+console.log('  =>', color.magenta_bt.underline('hello ' + color.blue_bt('wo' + color.yellow_bt.magenta_bbt('r') + 'ld') + ' !!!!'));
+console.log('  =>', color.magenta_bt.underline('hello ' + color.blue_bt('wo' + color.yellow_bt.magenta_bbt('r'))));
+console.log('  =>', color.magenta_bt.underline('hello ' + color.blue_bt('world') + ' !!!!' + color.yellow('kenny') + ' wong' ));
+
+
+console.log();
diff --git a/test/safe.test.js b/test/safe.test.js
index 0e33bed..edc71a7 100644
--- a/test/safe.test.js
+++ b/test/safe.test.js
@@ -2,44 +2,44 @@ var color = require('../safe');
 
 var _styles = require('../lib/styles-name')
 var colors = _styles.colors;
-var styles = _styles.styles;
+// var styles = _styles.styles;
 
-console.log("")
-console.log(" Font Bright Color:")
-console.log();
+var str = '"\\n  Font Bright Color:\\n\\n  " + ';
 
 colors.forEach(function(key) {
-  process.stdout.write("  "+ eval('color.'+key+'("'+key+'")') )
+  str += 'color.' + key + '("' + key + '   ") +';
 });
-console.log();
-colors.forEach(function(key) {
-  process.stdout.write("  "+ eval('color.'+key+'_bt("'+key+'")') )
+
+str += ' "\\n  " + ';
+
+colors.forEach(function (key) {
+  str += 'color.' + key + '_bt("' + key + '   ") +';
 });
 
+console.log(eval(str.replace(/\+$/, '')))
 
-console.log("")
-console.log("")
-console.log(" Background Bright Color:")
-console.log("")
 
+str = ' "\\n  Background Bright Color:\\n\\n  " +';
 
-colors.forEach(function(key) {
-  process.stdout.write("  "+ eval('color.'+key+'.'+key+'_b("'+key+' color")') )
+colors.forEach(function (key) {
+  str += 'color.' + key + '.' + key + '_b("' + key + ' color") +';
 });
-console.log();
-colors.forEach(function(key) {
-  process.stdout.write("  "+ eval('color.'+key+'.'+key+'_bbt("'+key+' color")') )
+str += '"\\n  " + ';
+colors.forEach(function (key) {
+  str += 'color.' + key + '.' + key + '_bbt("' + key + ' color") +';
 });
-console.log();
+
+console.log(eval(str.replace(/\+$/, '')))
+console.log()
 
 // 计划实现
-// 
+//
 // clr.art('.........\n. Hello .\n' .........\n', {
 //      ".":clr.red.bold('H')
-// 
+//
 // })
-// 
+//
 // color('在以下示例中，@abc{Object.defineProperty} 函数向用户@ab2{定义}的对象添加访问器属性。',{
 //     "abc":"yellow,blue_bg",
 //     "ab2":"underline,blink,red"
-// })
\ No newline at end of file
+// })
diff --git a/test/string.test.js b/test/toxic.test.js
similarity index 60%
rename from test/string.test.js
rename to test/toxic.test.js
index bfd3907..1a33aa6 100644
--- a/test/string.test.js
+++ b/test/toxic.test.js
@@ -1,6 +1,5 @@
 var toxic = require('../toxic')
 
-console.log("")
 // console.log(" ಠ_ಠ ")
 
 // console.log( "underline.red.bold.yellow_b string".underline.red.bold.yellow_b );
@@ -13,12 +12,12 @@ var styles = _styles.styles;
 
 
 console.log("")
-console.log(" styles:")
+console.log(" Styles:toxic.test.js")
 console.log("")
 
 styles.forEach(function(key) {
-    process.stdout.write("  "+key[key])
-    // console.log(key[key].red)
+  process.stdout.write("  "+key[key])
+  // console.log(key[key].red)
 });
 
 console.log("")
@@ -27,7 +26,7 @@ console.log(" colors:")
 console.log("")
 
 colors.forEach(function(key) {
-    process.stdout.write("  "+key[key])
+  process.stdout.write("  "+key[key])
 });
 
 console.log("")
@@ -36,8 +35,8 @@ console.log(" background colors:")
 console.log("")
 
 colors.forEach(function(key) {
-    // process.stdout.write("  "+key[key+'_b'])
-    process.stdout.write("  "+eval( '" ' +key+"_b"+ ' ".'+key+"_b"))
+  // process.stdout.write("  "+key[key+'_b'])
+  process.stdout.write("  "+eval( '" ' +key+"_b"+ ' ".'+key+"_b"))
 });
 
 
@@ -47,8 +46,8 @@ console.log(" Font Bright Color:")
 console.log("")
 
 colors.forEach(function(key) {
-    // process.stdout.write("  "+key[key+'_bt'])
-    process.stdout.write("  "+eval( '" ' +key+"_bt"+ ' ".'+key+"_bt"))
+  // process.stdout.write("  "+key[key+'_bt'])
+  process.stdout.write("  "+eval( '" ' +key+"_bt"+ ' ".'+key+"_bt"))
 });
 
 
@@ -57,7 +56,8 @@ console.log("")
 console.log(" Background Bright Color:")
 console.log("")
 
-colors.forEach(function(key) {
-    // process.stdout.write("  "+key[key+'_bbt'])
-    process.stdout.write("  "+eval( '" ' +key+"_bbt"+ ' ".'+key+"_bbt"))
+colors.forEach(function (key) {
+  process.stdout.write("  "+eval( '" ' +key+"_bbt"+ ' ".'+key+"_bbt"))
 });
+
+console.log();