chore: merge "Add tests for snake case algorithm" (#708)

* feat: adjust function name and use ES6 export

* feat: add test for SnakeCase

Co-authored-by: Alexandre VU <alexandre.vu@montreal.ca>

String/test/CheckSnakeCase.test.js

@@ -0,0 +1,18 @@
+import { checkSnakeCase } from '../CheckSnakeCase'
+describe('checkSnakeCase', () => {
+  it('expect to throw an error if input is not a string', () => {
+    expect(() => checkSnakeCase(0)).toThrow()
+  })
+
+  it('expects to return true if the input is in snake case format', () => {
+    const value = 'docker_build'
+    const result = checkSnakeCase(value)
+    expect(result).toBe(true)
+  })
+
+  it('expects to return false if the input is not in snake case format', () => {
+    const value = 'dockerBuild'
+    const result = checkSnakeCase(value)
+    expect(result).toBe(false)
+  })
+})