Adding example reader

lib/generate.js

@@ -1,22 +1,40 @@
 var _ = require( 'lodash' );
-
+//when there is example it is setted
+//case the example is a array, choose one value ramdomically
+let enableExample = (schema,options)=>{
+  if(schema.example){
+      if(Array.isArray(schema.example)){
+        //random position, because we cannot garantee we always have the method pickone (from options.chance)
+        let position = Math.floor(Math.random()*schema.example.length);
+        return schema.example[position];
+      }
+    return schema.example;
+  }
+  return false;
+}
 module.exports = {
 
   id: function ( name, schema, options ) {
     if ( schema.type === 'string' && name.match( /id$/i ) ) {
       return options.chance.guid();
     }
   },
-
+  
   string: function ( name, schema, options ) {
-
+    let example = enableExample(schema,options);
+    if(example){
+      return example;
+    }
+
     if ( schema.type !== 'string' ) return;
 
     // pick one random element from an enum
     if ( schema.enum ) {
       return options.chance.pickone( schema.enum );
     }
 
+
+
     // when no typehints are found, try to generate meaningful data
     // based on 'format'
     switch ( schema.format ) {
@@ -34,6 +52,11 @@ module.exports = {
 
   number: function ( name, schema, options ) {
 
+    let example = enableExample(schema,options);
+    if(example){
+      return example;
+    }
+
     if ( schema.type !== 'number' ) return;
 
     // supported formats are 'float' and 'double'
@@ -43,17 +66,25 @@ module.exports = {
   },
 
   integer: function ( name, schema, options ) {
+    let example = enableExample(schema,options);
+    if(example){
+      return example;
+    }
     if ( schema.type !== 'integer' ) return;
     return options.chance.integer( { min: 0, max: 4096 } );
   },
 
   boolean: function ( name, schema, options ) {
+    let example = enableExample(schema,options);
+    if(example){
+      return example;
+    }
     if ( schema.type !== 'boolean' ) return;
     return options.chance.bool();
   },
 
   array: function ( name, schema, options, gen, depth ) {
-
+  // Limitation: our modification do not accept array inside array.
     if ( schema.type !== 'array' ) return;
 
     if ( depth > options.maxDepth ) {
@@ -75,6 +106,10 @@ module.exports = {
   },
 
   object: function ( name, schema, options, gen, depth ) {
+    let example = enableExample(schema,options);
+    if(example){
+      return example;
+    }
 
     if ( schema.type && schema.type !== 'object' ) return;