From 4e98dd86d02d4ee169bd94c6a2e5d430830108e6 Mon Sep 17 00:00:00 2001
From: Angelos Chalaris <chalarangelo@gmail.com>
Date: Thu, 8 Feb 2018 16:00:07 +0200
Subject: [PATCH] Tests for functionName

---
 test/functionName/functionName.test.js | 19 ++++++++++++++++---
 test/testlog                           |  9 ++++++---
 2 files changed, 22 insertions(+), 6 deletions(-)

diff --git a/test/functionName/functionName.test.js b/test/functionName/functionName.test.js
index d2a5d41d4..e64a3d3be 100644
--- a/test/functionName/functionName.test.js
+++ b/test/functionName/functionName.test.js
@@ -1,13 +1,26 @@
 const test = require('tape');
-const functionName = require('./functionName.js');
-
+//const functionName = require('./functionName.js');
+// Custom override for console.debug to check output.
+let output = '';
+const console = {};
+console.debug = (x) => output = x;
+// Override for testing
+const functionName = fn => (console.debug(fn.name), fn);
 test('Testing functionName', (t) => {
   //For more information on all the methods supported by tape
   //Please go to https://github.com/substack/tape
   t.true(typeof functionName === 'function', 'functionName is a Function');
+  functionName(Math.max);
+  t.equal(output, 'max', 'Works for native functions');
+  function fun(x) {return x};
+  functionName(fun);
+  t.equal(output, 'fun', 'Works for functions');
+  const fn = x => x;
+  functionName(fn);
+  t.equal(output, 'fn', 'Works for arrow functions');
   //t.deepEqual(functionName(args..), 'Expected');
   //t.equal(functionName(args..), 'Expected');
   //t.false(functionName(args..), 'Expected');
   //t.throws(functionName(args..), 'Expected');
   t.end();
-});
\ No newline at end of file
+});
diff --git a/test/testlog b/test/testlog
index 2069ec717..c708ccd38 100644
--- a/test/testlog
+++ b/test/testlog
@@ -1,4 +1,4 @@
-Test log for: Thu Feb 08 2018 15:13:49 GMT+0200 (GTB Standard Time)
+Test log for: Thu Feb 08 2018 15:59:54 GMT+0200 (GTB Standard Time)
 
 > 30-seconds-of-code@0.0.1 test G:\My Files\git Repositories\30-seconds-of-code
 > tape test/**/*.test.js | tap-spec
@@ -463,6 +463,9 @@ Test log for: Thu Feb 08 2018 15:13:49 GMT+0200 (GTB Standard Time)
   Testing functionName
 
     √ functionName is a Function
+    √ Works for native functions
+    √ Works for functions
+    √ Works for arrow functions
 
   Testing functions
 
@@ -1751,8 +1754,8 @@ Test log for: Thu Feb 08 2018 15:13:49 GMT+0200 (GTB Standard Time)
     √ Works with multiple promises
 
 
-  total:     849
-  passing:   849
+  total:     852
+  passing:   852
   duration:  2.4s