     func testCenterMiddle() {
         var layout = l
             .layoutGravitating(horizontally: .center, vertically: .middle)
-        layout.layoutWith(frame: layoutRect)
+        layout.startLayout(with: layoutRect)
         XCTAssertEqual(
             l.frame,
             CGRect(

    func testCenterBottom() {
        var layout = l
            .layoutGravitating(horizontally: .center, vertically: .bottom)
        layout.layoutWith(frame: layoutRect)
        XCTAssertEqual(
            l.frame,
            CGRect(

    func testRightBottom() {
        var layout = l
            .layoutGravitating(horizontally: .right, vertically: .bottom)
        layout.startLayout(with: layoutRect)
        XCTAssertEqual(
            l.frame,
            CGRect(
