feat: simultaneously test example (#263)

* add simultaneously test example

* fix feature

Author: Eomm

index.js

@@ -1193,7 +1193,7 @@ function nested (laterCode, name, key, location, subKey, isArray) {
 
           if (type === 'string') {
             code += `
-              ${index === 0 ? 'if' : 'else if'}(obj${accessor} === null || typeof obj${accessor} === "${type}" || obj${accessor} instanceof Date || typeof obj${accessor}.toISOString === "function" || obj${accessor} instanceof RegExp)
+              ${index === 0 ? 'if' : 'else if'}(obj${accessor} === null || typeof obj${accessor} === "${type}" || obj${accessor} instanceof Date || typeof obj${accessor}.toISOString === "function" || obj${accessor} instanceof RegExp || (typeof obj${accessor} === "object" && Object.hasOwnProperty.call(obj${accessor}, "toString")))
                 ${nestedResult.code}
             `
           } else if (type === 'null') {

test/typesArray.test.js

@@ -365,3 +365,55 @@ test('string type array can handle dates', (t) => {
   })
   t.is(value, '{"date":"2018-04-20T07:52:31.017Z","dateObject":"2018-04-21T07:52:31.017Z"}')
 })
+
+test('object that is simultaneously a string and a json', (t) => {
+  t.plan(2)
+  const schema = {
+    type: 'object',
+    properties: {
+      simultaneously: {
+        type: ['string', 'object'],
+        properties: {
+          foo: { type: 'string' }
+        }
+      }
+    }
+  }
+
+  const likeObjectId = {
+    toString () { return 'hello' }
+  }
+
+  const stringify = build(schema)
+  const valueStr = stringify({ simultaneously: likeObjectId })
+  t.is(valueStr, '{"simultaneously":"hello"}')
+
+  const valueObj = stringify({ simultaneously: { foo: likeObjectId } })
+  t.is(valueObj, '{"simultaneously":{"foo":"hello"}}')
+})
+
+test('object that is simultaneously a string and a json switched', (t) => {
+  t.plan(2)
+  const schema = {
+    type: 'object',
+    properties: {
+      simultaneously: {
+        type: ['object', 'string'],
+        properties: {
+          foo: { type: 'string' }
+        }
+      }
+    }
+  }
+
+  const likeObjectId = {
+    toString () { return 'hello' }
+  }
+
+  const stringify = build(schema)
+  const valueStr = stringify({ simultaneously: likeObjectId })
+  t.is(valueStr, '{"simultaneously":{}}')
+
+  const valueObj = stringify({ simultaneously: { foo: likeObjectId } })
+  t.is(valueObj, '{"simultaneously":{"foo":"hello"}}')
+})