Tests for averageBy, maxBy, minBy

Fixed examples in minBy

snippets/minBy.md

@@ -9,6 +9,6 @@ const minBy = (arr, fn) => Math.min(...arr.map(typeof fn === 'function' ? fn : v
 ```
 
 ```js
-minBy([{ n: 4 }, { n: 2 }, { n: 8 }, { n: 6 }], o => o.n); // 8
+minBy([{ n: 4 }, { n: 2 }, { n: 8 }, { n: 6 }], o => o.n); // 2
-minBy([{ n: 4 }, { n: 2 }, { n: 8 }, { n: 6 }], 'n'); // 8
+minBy([{ n: 4 }, { n: 2 }, { n: 8 }, { n: 6 }], 'n'); // 2
 ```

test/averageBy/averageBy.test.js

@@ -5,9 +5,11 @@ test('Testing averageBy', (t) => {
 	//For more information on all the methods supported by tape
 	//Please go to https://github.com/substack/tape
 	t.true(typeof averageBy === 'function', 'averageBy is a Function');
+  t.equals(averageBy([{ n: 4 }, { n: 2 }, { n: 8 }, { n: 6 }], o => o.n), 5, 'Produces the right result with a function');
+  t.equals(averageBy([{ n: 4 }, { n: 2 }, { n: 8 }, { n: 6 }], 'n'), 5, 'Produces the right result with a property name');
 	//t.deepEqual(averageBy(args..), 'Expected');
 	//t.equal(averageBy(args..), 'Expected');
 	//t.false(averageBy(args..), 'Expected');
 	//t.throws(averageBy(args..), 'Expected');
 	t.end();
-});
+});

test/maxBy/maxBy.test.js

@@ -5,9 +5,11 @@ test('Testing maxBy', (t) => {
 	//For more information on all the methods supported by tape
 	//Please go to https://github.com/substack/tape
 	t.true(typeof maxBy === 'function', 'maxBy is a Function');
+  t.equals(maxBy([{ n: 4 }, { n: 2 }, { n: 8 }, { n: 6 }], o => o.n), 8, 'Produces the right result with a function');
+  t.equals(maxBy([{ n: 4 }, { n: 2 }, { n: 8 }, { n: 6 }], 'n'), 8, 'Produces the right result with a property name');
 	//t.deepEqual(maxBy(args..), 'Expected');
 	//t.equal(maxBy(args..), 'Expected');
 	//t.false(maxBy(args..), 'Expected');
 	//t.throws(maxBy(args..), 'Expected');
 	t.end();
-});
+});

test/minBy/minBy.test.js

@@ -5,9 +5,11 @@ test('Testing minBy', (t) => {
 	//For more information on all the methods supported by tape
 	//Please go to https://github.com/substack/tape
 	t.true(typeof minBy === 'function', 'minBy is a Function');
+  t.equals(minBy([{ n: 4 }, { n: 2 }, { n: 8 }, { n: 6 }], o => o.n), 2, 'Produces the right result with a function');
+  t.equals(minBy([{ n: 4 }, { n: 2 }, { n: 8 }, { n: 6 }], 'n'), 2, 'Produces the right result with a property name');
 	//t.deepEqual(minBy(args..), 'Expected');
 	//t.equal(minBy(args..), 'Expected');
 	//t.false(minBy(args..), 'Expected');
 	//t.throws(minBy(args..), 'Expected');
 	t.end();
-});
+});

test/testlog

@@ -1,4 +1,4 @@
-Test log for: Wed Jan 24 2018 17:33:18 GMT+0200 (GTB Standard Time)
+Test log for: Wed Jan 24 2018 17:37:28 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
@@ -41,6 +41,8 @@ Test log for: Wed Jan 24 2018 17:33:18 GMT+0200 (GTB Standard Time)
   Testing averageBy
 
     √ averageBy is a Function
+    √ Produces the right result with a function
+    √ Produces the right result with a property name
 
   Testing binarySearch
 
@@ -837,6 +839,8 @@ Test log for: Wed Jan 24 2018 17:33:18 GMT+0200 (GTB Standard Time)
   Testing maxBy
 
     √ maxBy is a Function
+    √ Produces the right result with a function
+    √ Produces the right result with a property name
 
   Testing maxN
 
@@ -861,6 +865,8 @@ Test log for: Wed Jan 24 2018 17:33:18 GMT+0200 (GTB Standard Time)
   Testing minBy
 
     √ minBy is a Function
+    √ Produces the right result with a function
+    √ Produces the right result with a property name
 
   Testing minN
 
@@ -1457,8 +1463,8 @@ Test log for: Wed Jan 24 2018 17:33:18 GMT+0200 (GTB Standard Time)
     √ zipWith is a Function
 
 
-  total:     621
+  total:     627
-  passing:   621
+  passing:   627
-  duration:  417ms
+  duration:  419ms
 
 

test/xProd/xProd.js

@@ -1,2 +1,2 @@
-const xProd = (a, b) => a.reduce((acc,x) => acc.concat(b.map(y => [x, y])),[]);
+const xProd = (a, b) => a.reduce((acc, x) => acc.concat(b.map(y => [x, y])), []);
 module.exports = xProd