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ichmagmaus111andClaude Opus 5.5
0622057a4f
Ghostgram for iOS, rebuilt from scratch on Telegram iOS 13.0. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
43 lines
1.7 KiB
Swift
43 lines
1.7 KiB
Swift
#if canImport(UIKit)
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import XCTest
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import UIKit
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@testable import RichTextEditorUIKit
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@available(iOS 16.0, *)
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final class BlockLayoutMeasureTests: XCTestCase {
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private func layout(_ s: String, width: CGFloat = 300) -> BlockLayout {
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BlockLayout(attributedString: NSAttributedString(string: s,
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attributes: [.font: UIFont.systemFont(ofSize: 16)]), width: width)
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}
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private let wrapping = "For decades they were just math. Now we photograph them, again and again."
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func test_measure_matchesFreshEngineAtThatWidth() {
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let live = layout(wrapping, width: 300)
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let fresh = layout(wrapping, width: 120)
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XCTAssertEqual(live.boundingHeight(forWidth: 120), fresh.boundingHeight, accuracy: 0.5)
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}
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func test_measure_liveWidthEqualsBoundingHeight() {
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let l = layout(wrapping, width: 300)
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XCTAssertEqual(l.boundingHeight(forWidth: 300), l.boundingHeight, accuracy: 0.5)
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}
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func test_measure_doesNotMutateLiveLayout() {
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let l = layout(wrapping, width: 300)
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let before = l.boundingHeight
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_ = l.boundingHeight(forWidth: 80)
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XCTAssertEqual(l.boundingHeight, before, accuracy: 0.001, "measuring must not reflow the live layout")
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XCTAssertEqual(l.containerWidth, 300, accuracy: 0.001)
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}
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func test_measure_memoInvalidatesAfterEdit() {
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let l = layout("Short", width: 300)
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let h1 = l.boundingHeight(forWidth: 100)
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l.replace(start: 5, end: 5, with: NSAttributedString(string: " and now much much much much longer so it wraps",
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attributes: [.font: UIFont.systemFont(ofSize: 16)]))
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let h2 = l.boundingHeight(forWidth: 100)
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XCTAssertGreaterThan(h2, h1, "memo must invalidate on edit (renderVersion bump)")
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}
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}
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#endif
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