Migrate doctest for BeadSort.js

(also remove inline test driver code)

Author: defaude

Sorts/BeadSort.js

@@ -1,25 +1,14 @@
 /**
- * Bead Sort, also known as Gravity sort, this algorithm was
- * inspired from natural phenomenons and was designed keeping in mind objects(or beads)
- * falling under the influence of gravity.
+ * Bead Sort, also known as Gravity sort.
+ *
+ * This algorithm was inspired from natural phenomena and was designed keeping in mind objects (or beads) falling under
+ * the influence of gravity.
  *
  * NOTE: It only works for arrays of positive integers.
  *
  * Wikipedia: https://en.wikipedia.org/wiki/Bead_sort
  */
-
-/**
- * Doctests
- *
- * > beadSort([5, 4, 3, 2, 1])
- * [1, 2, 3, 4, 5]
- * > beadSort([7, 9, 4, 3, 5])
- * [3, 4, 5, 7, 9]
- * > beadSort([-1, 5, 8, 4, 3, 19])
- * ! RangeError: Sequence must be a list of positive integers!
- */
-
-function beadSort (sequence) {
+export function beadSort (sequence) {
   /* Let's ensure our sequence has only Positive Integers */
   if (sequence.some((integer) => integer < 0)) {
     throw RangeError('Sequence must be a list of Positive integers Only!')
@@ -60,23 +49,8 @@ function beadSort (sequence) {
   }
 
   /* Finally, let's turn our Bead rows into their Respective Numbers */
-  const sortedSequence = grid.map((beadArray) => {
+  return grid.map((beadArray) => {
     const beadsArray = beadArray.filter(bead => bead === '*')
-
     return beadsArray.length
   })
-
-  return sortedSequence
 }
-
-/**
-* Implementation of Bead Sort
-*/
-const array = [5, 4, 3, 2, 1]
-// Before Sort
-console.log('\n- Before Sort | Implementation of Bead Sort -')
-console.log(array)
-// After Sort
-console.log('- After Sort | Implementation of Bead Sort -')
-console.log(beadSort(array))
-console.log('\n')

Sorts/test/BeadSort.test.js

@@ -0,0 +1,12 @@
+import { beadSort } from '../BeadSort'
+
+describe('BeadSort', () => {
+  it('should sort arrays correctly', () => {
+    expect(beadSort([5, 4, 3, 2, 1])).toEqual([1, 2, 3, 4, 5])
+    expect(beadSort([7, 9, 4, 3, 5])).toEqual([3, 4, 5, 7, 9])
+  })
+
+  it('should throw a RangeError when the array contains negative integers', () => {
+    expect(() => beadSort([-1, 5, 8, 4, 3, 19])).toThrow(RangeError)
+  })
+})