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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>
89 lines
4.2 KiB
Swift
89 lines
4.2 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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import RichTextEditorCore
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final class CanvasEditingTests: XCTestCase {
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private func canvas(_ texts: [String]) -> DocumentCanvasView {
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let v = DocumentCanvasView()
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v.setParagraphs(texts.enumerated().map {
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ParagraphBlock(id: BlockID("p\($0.offset)"), runs: [TextRun(text: $0.element)])
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}, width: 300)
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v.frame = CGRect(x: 0, y: 0, width: 300, height: 300); v.layoutIfNeeded()
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return v
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}
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private func caret(_ v: DocumentCanvasView, _ pos: Int) {
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v.selectedTextRange = DocumentTextRange(DocumentTextPosition(pos), DocumentTextPosition(pos))
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}
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func test_undoRedo_ofTyping_onCanvas() {
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let v = canvas(["Alpha", "Beta"])
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let um = UndoManager(); um.groupsByEvent = false
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v.undoManagerOverride = um
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caret(v, v.boxes[0].textStart + 5) // end of "Alpha"
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um.beginUndoGrouping(); v.insertText("!"); um.endUndoGrouping()
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XCTAssertEqual((v.boxes[0] as! BlockBox).currentParagraph().text, "Alpha!")
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um.undo()
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XCTAssertEqual((v.boxes[0] as! BlockBox).currentParagraph().text, "Alpha")
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XCTAssertEqual(v.head, v.boxes[0].textStart + 5) // caret restored to end of "Alpha"
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um.redo()
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XCTAssertEqual((v.boxes[0] as! BlockBox).currentParagraph().text, "Alpha!")
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XCTAssertEqual(v.head, v.boxes[0].textStart + 6) // caret after "Alpha!"
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}
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func test_crossBlockSelectionDelete_mergesEndpoints() {
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let v = canvas(["Alpha", "Beta", "Gamma"])
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v.setSelectionForTesting(anchor: v.boxes[0].textStart + 2, head: v.boxes[1].textStart + 2)
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v.deleteBackward()
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XCTAssertEqual(v.boxes.count, 2)
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XCTAssertEqual((v.boxes[0] as! BlockBox).currentParagraph().text, "Alta")
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XCTAssertEqual(v.boxes[0].id, BlockID("p0"))
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XCTAssertEqual((v.boxes[1] as! BlockBox).currentParagraph().text, "Gamma")
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XCTAssertEqual(v.head, v.boxes[0].textStart + 2)
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}
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func test_crossBlockDelete_removesFullyCoveredMiddleBlock() {
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let v = canvas(["Alpha", "Beta", "Gamma"])
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v.setSelectionForTesting(anchor: v.boxes[0].textStart + 2, head: v.boxes[2].textStart + 2)
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v.deleteBackward()
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XCTAssertEqual(v.boxes.count, 1)
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XCTAssertEqual((v.boxes[0] as! BlockBox).currentParagraph().text, "Almma")
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}
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func test_typeOverCrossBlockSelection_insertsInMergedBlock() {
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let v = canvas(["Alpha", "Beta"])
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v.setSelectionForTesting(anchor: v.boxes[0].textStart + 2, head: v.boxes[1].textStart + 2)
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v.insertText("X")
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XCTAssertEqual(v.boxes.count, 1)
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XCTAssertEqual((v.boxes[0] as! BlockBox).currentParagraph().text, "AlXta")
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XCTAssertEqual(v.head, v.boxes[0].textStart + 3)
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}
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func test_undo_ofCrossBlockDelete_restoresAllBlocks() {
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let v = canvas(["Alpha", "Beta"])
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let um = UndoManager(); um.groupsByEvent = false
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v.undoManagerOverride = um
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v.setSelectionForTesting(anchor: v.boxes[0].textStart + 2, head: v.boxes[1].textStart + 2)
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um.beginUndoGrouping(); v.deleteBackward(); um.endUndoGrouping()
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XCTAssertEqual(v.boxes.count, 1)
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um.undo()
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XCTAssertEqual(v.boxes.count, 2)
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XCTAssertEqual(v.boxes.map { ($0 as! BlockBox).currentParagraph().text }, ["Alpha", "Beta"])
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XCTAssertEqual(v.boxes.map { $0.id }, [BlockID("p0"), BlockID("p1")])
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// Undo of a deletion now restores a COLLAPSED caret at the END of the restored span (iOS-style),
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// not the pre-edit selection. max(before-anchor, before-head) = the head end = boxes[1].textStart + 2.
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XCTAssertEqual(v.anchor, v.boxes[1].textStart + 2)
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XCTAssertEqual(v.head, v.boxes[1].textStart + 2)
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}
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func test_deleteSelectionToEndOfDocument_viaSnapping() {
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let v = canvas(["Alpha", "Beta"])
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v.setSelectionForTesting(anchor: v.boxes[0].textStart + 2, head: v.documentSize) // inside "Alpha" end-of-document (past last text → resolveBox snaps)
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v.deleteBackward()
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XCTAssertEqual(v.boxes.count, 1)
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XCTAssertEqual((v.boxes[0] as! BlockBox).currentParagraph().text, "Al") // "Al" + everything-after deleted
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}
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}
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#endif
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