truizlop · July 24, 2018 12:20
diff --git a/PBT-Test1.swift b/PBT-Test1.swift
 func testConcatLengthIsEqualToSumOfLengths() {
    for _ in 0 ..< 100 {
        let a = randomString()
        let b = randomString()
        let result = concat(first: a, second: b)
        XCTAssertEqual(result.length, a.length + b.length)
    }
 }
	func testConcatLengthIsEqualToSumOfLengths() {
	for _ in 0 ..< 100 {
	let a = randomString()
	let b = randomString()
	let result = concat(first: a, second: b)
	XCTAssertEqual(result.length, a.length + b.length)
	}
	}