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Add some new test cases for subtraction operation

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Lines changed: 7 additions & 1 deletion

Original file line number	Diff line number	Diff line change
`@@ -51,7 +51,13 @@ describe("Testing Subbtaction implementation", () => {`
`51`	`51`	`expect(subtract(111,21)).toBe(90);`
`52`	`52`	`});`
`53`	`53`	`it("Parameter should only be Numbers",()=>{`
`54`		`-expect(subtract(3,"4")).toBeFalsy();`
	`54`	`+expect(subtract(3,"4")).toMatch(/MustbeNumbers/);`
	`55`	`+});`
	`56`	`+it("Parameter should at least be two",()=>{`
	`57`	`+expect(subtract(3)).toMatch(/onlytwoNumbers/);`
	`58`	`+});`
	`59`	`+it("Parameter should not be more than two",()=>{`
	`60`	`+expect(subtract(3,3,3,4)).toMatch(/onlytwoNumbers/);`
`55`	`61`	`});`
`56`	`62`	`});`
`57`	`63`

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