Create Coordinate.test.js

Enoch-Moke · web-flow · commit cba900e62849 · 2021-07-27T15:53:59.000+08:00
Previous submission for the similar file in pull request TheAlgorithms#646 was deleted accidentally. This is a reupload with correct coding that passed local test.
diff --git a/Maths/test/Coordinate.test.js b/Maths/test/Coordinate.test.js
@@ -0,0 +1,22 @@
+import * as coordinate from '../Coordinate'
+
+describe('Testing distance2points calculations', () => {
+  it('Should give a numeric output (distance between 2 points) with 4 numeric arguments', () => {
+    const distance2points = coordinate.distance2points(2, 2, -10, -7)
+    expect(distance2points).toBe(15)
+  })
+  it('Should not give any output given non-numeric argument', () => {
+    const distance2points = coordinate.distance2points('ABC', '123', '', '###')
+    expect(distance2points).toBeNaN()
+  })
+  it('Should not give any output given any number of numeric arguments less than 4', () => {
+    const distance2points3arg = coordinate.distance2points(2, 2, -10)    
+    const distance2points2arg = coordinate.distance2points(2, 2)
+    const distance2points1arg = coordinate.distance2points(2)
+    const distance2points0arg = coordinate.distance2points()
+    expect(distance2points3arg).toBeNaN()
+    expect(distance2points2arg).toBeNaN()
+    expect(distance2points1arg).toBeNaN()
+    expect(distance2points0arg).toBeNaN()
+  })
+})
