number test

lib/typecast.js

@@ -43,7 +43,7 @@ TypeCast.Boolean = function (arg) {
 
 TypeCast.Number = function (arg, raddix) {
   raddix = raddix || 10;
-  var t = typeof arg, result;
+  var t = typeof arg, result, tmp;
   switch (true) {
     case (t === 'boolean'):
     	result = arg ? 1 : 0;
@@ -72,7 +72,13 @@ TypeCast.Number = function (arg, raddix) {
           }
         }
         else {
-          result = 0;
+          tmp = parseInt(arg, raddix);
+          if (isNaN(tmp)) {
+            result = 0;
+          }
+          else {
+            result = tmp;
+          }
         }
       }
     break;

test/number.test.js

@@ -0,0 +1,47 @@
+var cast = require('../lib/typecast.js'),
+assert = require('assert');
+
+module.exports = {
+  'test number:true' : function () {
+    assert.equal(1, cast.number(true));
+  }
+  ,'test number:false' : function () {
+    assert.equal(0, cast.number(false));
+  }
+  ,'test number:function' : function () {
+    assert.equal(0, cast.number(function(){}));
+  }
+  ,'test number:number' : function () {
+    assert.equal(1, cast.number(1));
+  }
+  ,'test number:object number contains' : function () {
+    assert.equal(8, cast.number(new Number(8)));
+  }
+  ,'test number:object not number' : function () {
+    assert.equal(0, cast.number({}));
+  }
+  ,'test number:object number contains with raddix' : function () {
+    assert.equal(8, cast.number(new String(010), 8));
+  }
+  ,'test number:string number contains' : function () {
+    assert.equal(1, cast.number('1'));
+  }
+  ,'test number:string number contains with raddix' : function () {
+    assert.equal(10, cast.number('a', 16));
+  }
+  ,'test number:string not number' : function () {
+    assert.equal(0, cast.number('a'));
+  }
+  ,'test number:string ieee notation' : function () {
+    assert.equal(-1e+110, cast.number('-0.1e111'));
+  }
+  ,'test number:string float' : function () {
+    assert.equal(0.15, cast.number('0.15'));
+  }
+  ,'test number:string in the middle of the string' : function () {
+    assert.equal(0.5, cast.number('the profit of this quarter is expected 0.5 percent'));
+  }
+  ,'test number:undefined' : function () {
+    assert.equal(0, cast.number(undefined));
+  }
+};