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UIViewLessThanOrEqualToUILayoutGuideConstraintTests.swift
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UIViewLessThanOrEqualToUILayoutGuideConstraintTests.swift
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//
// UIViewLessThanOrEqualToUILayoutGuideConstraintTests.swift
//
//
// Created by Yusaku Nishi on 2021/12/13.
//
import XCTest
import AceLayout
final class UIViewLessThanOrEqualToUILayoutGuideConstraintTests: XCTestCase {
private var superview: AL.View!
private var subview: AL.View!
override func setUp() {
super.setUp()
superview = AL.View()
subview = AL.View()
superview.addSubview(subview)
}
override func tearDown() {
super.tearDown()
subview.removeFromSuperview()
subview = nil
superview = nil
}
func testXAxisConstraints() {
XCTContext.runActivity(named: "lessThanOrEqual(to another:)") { _ in
let layoutMarginsGuide = superview.layoutMarginsGuide
let constraints = subview.autoLayout { item in
item.leading.lessThanOrEqual(to: layoutMarginsGuide)
item.trailing.lessThanOrEqual(to: layoutMarginsGuide, plus: 8)
}
let expectedConstraints = [
subview.leadingAnchor.constraint(lessThanOrEqualTo: layoutMarginsGuide.leadingAnchor),
subview.trailingAnchor.constraint(lessThanOrEqualTo: layoutMarginsGuide.trailingAnchor,
constant: 8)
]
NSLayoutConstraint.activate(expectedConstraints)
assertEqual(constraints, expectedConstraints)
}
XCTContext.runActivity(named: "lessThanOrEqual(to anotherAnchor:)") { _ in
let layoutMarginsGuide = superview.layoutMarginsGuide
let constraints = subview.autoLayout { item in
item.leading.lessThanOrEqual(to: layoutMarginsGuide.trailingAnchor, plus: 8)
}
let expectedConstraints = [
subview.leadingAnchor.constraint(lessThanOrEqualTo: layoutMarginsGuide.trailingAnchor,
constant: 8)
]
NSLayoutConstraint.activate(expectedConstraints)
assertEqual(constraints, expectedConstraints)
}
}
func testYAxisConstraints() {
XCTContext.runActivity(named: "lessThanOrEqual(to another:)") { _ in
let layoutMarginsGuide = superview.layoutMarginsGuide
let constraints = subview.autoLayout { item in
item.top.lessThanOrEqual(to: layoutMarginsGuide)
item.bottom.lessThanOrEqual(to: layoutMarginsGuide, plus: 8)
}
let expectedConstraints = [
subview.topAnchor.constraint(lessThanOrEqualTo: layoutMarginsGuide.topAnchor),
subview.bottomAnchor.constraint(lessThanOrEqualTo: layoutMarginsGuide.bottomAnchor,
constant: 8)
]
NSLayoutConstraint.activate(expectedConstraints)
assertEqual(constraints, expectedConstraints)
}
XCTContext.runActivity(named: "lessThanOrEqual(to anotherAnchor:)") { _ in
let layoutMarginsGuide = superview.layoutMarginsGuide
let constraints = subview.autoLayout { item in
item.top.lessThanOrEqual(to: layoutMarginsGuide.bottomAnchor, plus: 8)
}
let expectedConstraints = [
subview.topAnchor.constraint(lessThanOrEqualTo: layoutMarginsGuide.bottomAnchor,
constant: 8)
]
NSLayoutConstraint.activate(expectedConstraints)
assertEqual(constraints, expectedConstraints)
}
}
@available(iOS 11.0, tvOS 11.0, *)
func testXYConstraintsWithSystemSpacing() {
XCTContext.runActivity(named: "lessThanOrEqual(toSystemSpacingAfter/Below:)") { _ in
let layoutMarginsGuide = superview.layoutMarginsGuide
let constraints = subview.autoLayout { item in
item.top.lessThanOrEqual(toSystemSpacingBelow: layoutMarginsGuide.topAnchor)
item.leading.lessThanOrEqual(toSystemSpacingAfter: layoutMarginsGuide.leadingAnchor)
item.trailing.lessThanOrEqual(toSystemSpacingAfter: layoutMarginsGuide.trailingAnchor,
multipliedBy: -1)
item.bottom.lessThanOrEqual(toSystemSpacingBelow: layoutMarginsGuide.bottomAnchor,
multipliedBy: -1)
}
let expectedConstraints = [
subview.topAnchor.constraint(lessThanOrEqualToSystemSpacingBelow: layoutMarginsGuide.topAnchor,
multiplier: 1),
subview.leadingAnchor.constraint(lessThanOrEqualToSystemSpacingAfter: layoutMarginsGuide.leadingAnchor,
multiplier: 1),
subview.trailingAnchor.constraint(lessThanOrEqualToSystemSpacingAfter: layoutMarginsGuide.trailingAnchor,
multiplier: -1),
subview.bottomAnchor.constraint(lessThanOrEqualToSystemSpacingBelow: layoutMarginsGuide.bottomAnchor,
multiplier: -1)
]
NSLayoutConstraint.activate(expectedConstraints)
assertEqual(constraints, expectedConstraints)
}
}
func testDimensionConstraints() {
XCTContext.runActivity(named: "lessThanOrEqual(to another: SizeConstrainable)") { _ in
let layoutMarginsGuide = superview.layoutMarginsGuide
let constraints = subview.autoLayout { item in
item.width.lessThanOrEqual(to: layoutMarginsGuide)
item.height.lessThanOrEqual(to: layoutMarginsGuide, plus: 8)
item.height.lessThanOrEqual(to: layoutMarginsGuide, multipliedBy: 2)
}
let expectedConstraints = [
subview.widthAnchor.constraint(lessThanOrEqualTo: layoutMarginsGuide.widthAnchor),
subview.heightAnchor.constraint(lessThanOrEqualTo: layoutMarginsGuide.heightAnchor,
constant: 8),
subview.heightAnchor.constraint(lessThanOrEqualTo: layoutMarginsGuide.heightAnchor,
multiplier: 2)
]
NSLayoutConstraint.activate(expectedConstraints)
assertEqual(constraints, expectedConstraints)
}
XCTContext.runActivity(named: "lessThanOrEqual(to anotherAnchor:)") { _ in
let layoutMarginsGuide = superview.layoutMarginsGuide
let constraints = subview.autoLayout { item in
item.width.lessThanOrEqual(to: layoutMarginsGuide.heightAnchor, plus: 8)
item.width.lessThanOrEqual(to: layoutMarginsGuide.heightAnchor, multipliedBy: 2)
}
let expectedConstraints = [
subview.widthAnchor.constraint(lessThanOrEqualTo: layoutMarginsGuide.heightAnchor,
constant: 8),
subview.widthAnchor.constraint(lessThanOrEqualTo: layoutMarginsGuide.heightAnchor,
multiplier: 2)
]
NSLayoutConstraint.activate(expectedConstraints)
assertEqual(constraints, expectedConstraints)
}
}
func testBaselineConstraints() {
XCTContext.runActivity(named: "lessThanOrEqual(to anotherAnchor:)") { _ in
let layoutMarginsGuide = superview.layoutMarginsGuide
let constraints = subview.autoLayout { item in
item.firstBaseline.lessThanOrEqual(to: layoutMarginsGuide.topAnchor)
item.firstBaseline.lessThanOrEqual(to: layoutMarginsGuide.bottomAnchor, plus: 8)
}
let expectedConstraints = [
subview.firstBaselineAnchor.constraint(lessThanOrEqualTo: layoutMarginsGuide.topAnchor),
subview.firstBaselineAnchor.constraint(lessThanOrEqualTo: layoutMarginsGuide.bottomAnchor,
constant: 8)
]
NSLayoutConstraint.activate(expectedConstraints)
assertEqual(constraints, expectedConstraints)
}
}
func testPointConstraints() {
XCTContext.runActivity(named: "lessThanOrEqual(to another:, shiftedBy:)") { _ in
let layoutMarginsGuide = superview.layoutMarginsGuide
let constraints = subview.autoLayout { item in
item.center.lessThanOrEqual(to: layoutMarginsGuide)
let offset = CGSize(width: 10, height: 20)
item.topLeading.lessThanOrEqual(to: layoutMarginsGuide, shiftedBy: offset)
}
let expectedConstraints = [
subview.centerXAnchor.constraint(lessThanOrEqualTo: layoutMarginsGuide.centerXAnchor),
subview.centerYAnchor.constraint(lessThanOrEqualTo: layoutMarginsGuide.centerYAnchor),
subview.leadingAnchor.constraint(lessThanOrEqualTo: layoutMarginsGuide.leadingAnchor,
constant: 10),
subview.topAnchor.constraint(lessThanOrEqualTo: layoutMarginsGuide.topAnchor,
constant: 20)
]
NSLayoutConstraint.activate(expectedConstraints)
assertEqual(constraints, expectedConstraints)
}
}
func testSizeConstraints() {
XCTContext.runActivity(named: "lessThanOrEqual(to another:, multipliedBy:)") { _ in
let layoutMarginsGuide = superview.layoutMarginsGuide
let constraints = subview.autoLayout { item in
item.size.lessThanOrEqual(to: layoutMarginsGuide)
item.size.lessThanOrEqual(to: layoutMarginsGuide, multipliedBy: 2)
}
let expectedConstraints = [
subview.widthAnchor.constraint(lessThanOrEqualTo: layoutMarginsGuide.widthAnchor),
subview.heightAnchor.constraint(lessThanOrEqualTo: layoutMarginsGuide.heightAnchor),
subview.widthAnchor.constraint(lessThanOrEqualTo: layoutMarginsGuide.widthAnchor,
multiplier: 2),
subview.heightAnchor.constraint(lessThanOrEqualTo: layoutMarginsGuide.heightAnchor,
multiplier: 2)
]
NSLayoutConstraint.activate(expectedConstraints)
assertEqual(constraints, expectedConstraints)
}
}
}