Added TernarySearch Function

Search/test/TernarySearch.test.js

@@ -0,0 +1,36 @@
+import { ternarySearchRecursive, ternarySearchIterative } from '../TernarySearch'
+
+test('should return the index of a number in an array of numbers:', () => {
+  const indexNumber = ternarySearchRecursive([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], 3)
+  expect(indexNumber).toBe(2)
+})
+
+test('should return the index of a number in an array of numbers:', () => {
+  const indexNumber = ternarySearchIterative([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], 8)
+  expect(indexNumber).toBe(7)
+})
+
+test('should return the index of a number in an array of numbers:', () => {
+  const indexNumber = ternarySearchRecursive([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], 0)
+  expect(indexNumber).toBe(-1)
+})
+
+test('should return the index of a number in an array of numbers:', () => {
+  const indexNumber = ternarySearchIterative([1, 2, 3, 4, 5, 6, 7, 8, 9, 10], 12)
+  expect(indexNumber).toBe(-1)
+})
+
+test('should return the index of a string in an array of strings:', () => {
+  const indexNumber = ternarySearchRecursive(['Ali', 'Cathrynli', 'Josuke', 'Thomas'], 'Cathrynli')
+  expect(indexNumber).toBe(1)
+})
+
+test('should return the index of a string in an array of strings:', () => {
+  const indexNumber = ternarySearchRecursive(['Ali', 'Cathrynli', 'Josuke', 'Thomas'], 'Josuke')
+  expect(indexNumber).toBe(2)
+})
+
+test('should return the index of a string in an array of strings:', () => {
+  const indexNumber = ternarySearchRecursive(['Ali', 'Cathrynli', 'Josuke', 'Thomas'], 'Angela')
+  expect(indexNumber).toBe(-1)
+})