EBT-Test3.swift

func testStringConcat() {
	let a = "Hello, "
	let b = "World!"
	let result = "Hello, World!"
	XCTAssertEqual(result, concat(first: a, second: b))
        
	let c = "Another "
	let d = "example"
	let result2 = "Another example"
	XCTAssertEqual(result2, concat(first: c, second: d))
}