import XCTest final class ExtendedStringTests: SwiftLintTestCase { func testCountOccurrences() { XCTAssertEqual("aabbabaaba".countOccurrences(of: "a"), 6) XCTAssertEqual("".countOccurrences(of: "a"), 0) XCTAssertEqual("\n\n".countOccurrences(of: "\n"), 2) } }