feat/ add tests

Author: nik-rev

15_totalIntegers/solution/totalIntegers-solution.spec.js

@@ -1,15 +1,29 @@
 const totalIntegers = require('./totalIntegers-solution');
 
 describe('totalIntegers', () => {
-  test('First test description', () => {
-    // Replace this comment with any other necessary code, and update the expect line as necessary
-
-    expect(totalIntegers()).toBe('');
+  test('Works with an empty nested array', () => {
+    expect(totalIntegers([[], [], []])).toBe(0);
   });
-  
-  test('Second test description', () => {
-    // Replace this comment with any other necessary code, and update the expect line as necessary
-
-    expect(totalIntegers()).toBe('');
+  test('Works with a very nested array', () => {
+    expect(totalIntegers([[[[[[[[[[[[[[4]]]]]], 246]]]]]]]])).toBe(2);
+  });
+  test('Works with negative numbers', () => {
+    expect(totalIntegers([5, 7, -7, [45, -1, -0], [4, 7, -4, -4, -4, [777777, -45674]], [-5477654]])).toBe(14);
+  });
+  test('Works with floats', () => {
+    expect(totalIntegers([5, 7.7, 7, [45, 1, 0], [4.0, 7, [7.77777, 4567.4]], [5477.654]])).toBe(11);
+  });
+  test('Only accepts arrays', () => {
+    expect(totalIntegers('2')).toBe(undefined);
+    expect(totalIntegers({})).toBe(undefined);
+    expect(totalIntegers(() => {})).toBe(undefined);
+    expect(totalIntegers(42)).toBe(undefined);
+    expect(totalIntegers(NaN)).toBe(undefined);
+  });
+  test('Works with NaN', () => {
+    expect(totalIntegers([5, NaN, [NaN, NaN, 64], 4])).toBe(3);
+  });
+  test('Works with a nested array of all kinds of things', () => {
+    expect(totalIntegers([NaN, [[{}], 555 ], '444', [], 74.0, undefined, [[() => {}], [4], Infinity, [[[], -44.0], [null, '-4'], NaN [[]], 6]], () => {}, [[], [-Infinity, ['4'], [4.7, -46.7], NaN]]])).toBe(5);
   });
 });