diff --git a/test/testlog b/test/testlog
index bf3519e0e..21f3a9c92 100644
--- a/test/testlog
+++ b/test/testlog
@@ -1,4 +1,4 @@
-Test log for: Sat Feb 03 2018 11:58:05 GMT+0200 (GTB Standard Time)
+Test log for: Sat Feb 03 2018 12:00:56 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
@@ -1487,10 +1487,12 @@ Test log for: Sat Feb 03 2018 11:58:05 GMT+0200 (GTB Standard Time)
   Testing unionBy
 
     √ unionBy is a Function
+    √ Produces the appropriate results
 
   Testing unionWith
 
     √ unionWith is a Function
+    √ Produces the appropriate results
 
   Testing uniqueElements
 
@@ -1631,8 +1633,8 @@ Test log for: Sat Feb 03 2018 11:58:05 GMT+0200 (GTB Standard Time)
     √ Works with multiple promises
 
 
-  total:     735
-  passing:   735
+  total:     737
+  passing:   737
   duration:  2.4s
 
 
diff --git a/test/unionBy/unionBy.test.js b/test/unionBy/unionBy.test.js
index c59c4c303..c412368ce 100644
--- a/test/unionBy/unionBy.test.js
+++ b/test/unionBy/unionBy.test.js
@@ -5,9 +5,10 @@ test('Testing unionBy', (t) => {
   //For more information on all the methods supported by tape
   //Please go to https://github.com/substack/tape
   t.true(typeof unionBy === 'function', 'unionBy is a Function');
+  t.deepEqual(unionBy([2.1], [1.2, 2.3], Math.floor), [2.1, 1.2], 'Produces the appropriate results');
   //t.deepEqual(unionBy(args..), 'Expected');
   //t.equal(unionBy(args..), 'Expected');
   //t.false(unionBy(args..), 'Expected');
   //t.throws(unionBy(args..), 'Expected');
   t.end();
-});
\ No newline at end of file
+});
diff --git a/test/unionWith/unionWith.test.js b/test/unionWith/unionWith.test.js
index 9b3f5ebfc..852226eb9 100644
--- a/test/unionWith/unionWith.test.js
+++ b/test/unionWith/unionWith.test.js
@@ -5,9 +5,10 @@ test('Testing unionWith', (t) => {
   //For more information on all the methods supported by tape
   //Please go to https://github.com/substack/tape
   t.true(typeof unionWith === 'function', 'unionWith is a Function');
+  t.deepEqual(unionWith([1, 1.2, 1.5, 3, 0], [1.9, 3, 0, 3.9], (a, b) => Math.round(a) === Math.round(b)), [1, 1.2, 1.5, 3, 0, 3.9], 'Produces the appropriate results');
   //t.deepEqual(unionWith(args..), 'Expected');
   //t.equal(unionWith(args..), 'Expected');
   //t.false(unionWith(args..), 'Expected');
   //t.throws(unionWith(args..), 'Expected');
   t.end();
-});
\ No newline at end of file
+});