enhancement: FindLCM algorithm (#1222)

Co-authored-by: patrickwestervelt <pwestervelt3@gatech.edu>

Maths/test/FindLcm.test.js

@@ -1,20 +1,39 @@
-import { findLcm } from '../FindLcm'
+import { findLcm, findLcmWithHcf } from '../FindLcm'
 
 describe('findLcm', () => {
   it('should throw a statement for values less than 1', () => {
-    expect(findLcm(0, 0)).toBe('Please enter values greater than zero.')
+    expect(() => { findLcm(0, 0) }).toThrow(Error)
   })
 
   it('should throw a statement for one value less than 1', () => {
-    expect(findLcm(1, 0)).toBe('Please enter values greater than zero.')
-    expect(findLcm(0, 1)).toBe('Please enter values greater than zero.')
+    expect(() => { findLcm(1, 0) }).toThrow(Error)
+    expect(() => { findLcm(0, 1) }).toThrow(Error)
   })
 
   it('should return an error for values non-integer values', () => {
-    expect(findLcm(4.564, 7.39)).toBe('Please enter whole numbers.')
+    expect(() => { findLcm(4.564, 7.39) }).toThrow(Error)
   })
 
   it('should return the LCM of two given integers', () => {
     expect(findLcm(27, 36)).toBe(108)
   })
 })
+
+describe('findLcmWithHcf', () => {
+  it('should throw a statement for values less than 1', () => {
+    expect(() => { findLcmWithHcf(0, 0) }).toThrow(Error)
+  })
+
+  it('should throw a statement for one value less than 1', () => {
+    expect(() => { findLcmWithHcf(1, 0) }).toThrow(Error)
+    expect(() => { findLcmWithHcf(0, 1) }).toThrow(Error)
+  })
+
+  it('should return an error for values non-integer values', () => {
+    expect(() => { findLcmWithHcf(4.564, 7.39) }).toThrow(Error)
+  })
+
+  it('should return the LCM of two given integers', () => {
+    expect(findLcmWithHcf(27, 36)).toBe(108)
+  })
+})