fix(enum): fix enum always return first item

lib/index.js

@@ -64,7 +64,8 @@ function sampleFromSchema (schema) {
 
   if (schema['enum']) {
     if (schema['default']) return schema['default']
-    return utils.normalizeArray(schema['enum'])[0]
+    const enumSchema = utils.normalizeArray(schema['enum'])
+    return utils.pickEnum(enumSchema)
   }
 
   if (type === 'file') {

lib/utils.js

@@ -28,10 +28,24 @@ function inferSchema (thing) {
   return thing
 }
 
+function pickEnum(thing) {
+  let result = "@pick(";
+  const resultEnum = thing.map(item => {
+    if(typeof item === 'string'){
+      return '"' + item + '"'
+    }
+    return item
+  })
+  result += resultEnum.join(',')
+  result += ")"
+  return result
+}
+
 module.exports = {
   isObject: isObject,
   objectify: objectify,
   isFunc: isFunc,
   inferSchema: inferSchema,
-  normalizeArray: normalizeArray
+  normalizeArray: normalizeArray,
+  pickEnum: pickEnum
 }

test/index.test.js

@@ -24,7 +24,7 @@ describe('index.test.js', () => {
       id: '@integer(60, 100)',
       name: '@string'
     }],
-    status: 'available'
+    status: '@pick("available","pending","sold")'
   }
 
   const orderSchema = {
@@ -33,7 +33,7 @@ describe('index.test.js', () => {
     petId: '@integer(60, 100)',
     quantity: '@integer(60, 100)',
     shipDate: '@datetime',
-    status: 'placed'
+    status: '@pick("placed","approved","delivered")'
   }
 
   const userSchema = {

test/specs/v1.2/store.json

@@ -131,8 +131,8 @@
           "description": "Order Status",
           "enum": [
             "placed",
-            " approved",
-            " delivered"
+            "approved",
+            "delivered"
           ]
         },
         "shipDate": {