From 5a5130a0efb20a0221388f314f2433b88ca96cd0 Mon Sep 17 00:00:00 2001
From: fabioricali <ricalifabio@gmail.com>
Date: Mon, 31 Jul 2017 11:51:19 +0200
Subject: [PATCH] add generatorFunction

---
 CHANGELOG.md         |  4 ++++
 index.d.ts           |  1 +
 src/asserts/types.js | 16 ++++++++++++++++
 test/types.js        | 13 +++++++++++++
 4 files changed, 34 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index d783b3a..53699fc 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,10 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](http://keepachangelog.com/)
 and this project adheres to [Semantic Versioning](http://semver.org/).
 
+## [unreleased]
+### Added
+- `be.generatorFunction`, check if is GeneratorFunction
+
 ## [1.9.0] - 2017-07-30
 ### Added
 - `be.sha256`, check if is sha256 string
diff --git a/index.d.ts b/index.d.ts
index ae71d80..725cd1c 100644
--- a/index.d.ts
+++ b/index.d.ts
@@ -65,6 +65,7 @@ export declare namespace be {
     function float32Array(value: any): boolean;
     function float64Array(value: any): boolean;
     function asyncFunction(value: any): boolean;
+    function generatorFunction(value: any): boolean;
 
     function inArray(value: any, array: Array<any>): boolean;
     function arrayOfStrings(array: Array<any>): boolean;
diff --git a/src/asserts/types.js b/src/asserts/types.js
index 5e76c42..1e37cbe 100644
--- a/src/asserts/types.js
+++ b/src/asserts/types.js
@@ -781,6 +781,22 @@ Types.asyncFunction = (value) => {
     return Types.classOf(value, 'asyncfunction');
 };
 
+/**
+ * Check if is GeneratorFunction
+ *
+ * **Interfaces**: `all`, `any`, `not`, `err`
+ *
+ * @function
+ * @name generatorFunction
+ * @param value {Mixed} value
+ * @returns {boolean}
+ * @example
+ * be.generatorFunction(function* test(){}) // true
+ */
+Types.generatorFunction = (value) => {
+    return Types.classOf(value, 'generatorfunction');
+};
+
 Types = Interface.create(Types);
 
 module.exports = Types;
\ No newline at end of file
diff --git a/test/types.js b/test/types.js
index 8437895..2d0076a 100644
--- a/test/types.js
+++ b/test/types.js
@@ -901,4 +901,17 @@ describe('asyncFunction', function () {
         console.log(result);
         assert.equal(result, false);
     });
+});
+
+describe('generatorFunction', function () {
+    it('should be return true', function () {
+        var result = be.generatorFunction(function* name(){return true});
+        console.log(result);
+        assert.equal(result, true);
+    });
+    it('should be return false', function () {
+        var result = be.generatorFunction(function test(){});
+        console.log(result);
+        assert.equal(result, false);
+    });
 });
\ No newline at end of file