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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>
70 lines
3.5 KiB
Swift
70 lines
3.5 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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/// A programmatic edit moves the caret, so it MUST bracket the change with the input system's
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/// `selectionWillChange`/`selectionDidChange` (alongside `textWillChange`/`textDidChange`). Otherwise the
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/// OS keeps a STALE `selectedTextRange` — the visible cause of the custom-emoji-keyboard bugs: the caret
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/// appears not to advance after a programmatic insert, and the next insert lands at the wrong place
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/// (leaving a stray `U+FFFC` "service character"). The `reload` path already does this; `editing { }`
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/// (behind insertText / insertEmoji / deleteBackward / structural edits) must too.
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final class EditingInputDelegateBracketTests: XCTestCase {
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// Reuses the shared `InputDelegateSpy` (MarkedTextTests.swift), which records the four bracket calls.
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private func makeCanvas(text: String = "ab") -> DocumentCanvasView {
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let c = DocumentCanvasView()
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c.setBlocks([.paragraph(ParagraphBlock(id: BlockID("p1"), runs: [TextRun(text: text)]))], width: 320)
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c.frame = CGRect(x: 0, y: 0, width: 320, height: 200)
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c.layoutIfNeeded()
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return c
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}
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func test_insertEmoji_bracketsSelectionChange() {
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let c = makeCanvas()
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let d = InputDelegateSpy(); c.inputDelegate = d
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c.setSelectionForTesting(anchor: c.boxes[0].textStart + 1, head: c.boxes[0].textStart + 1)
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c.insertEmoji(id: "star", altText: nil)
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XCTAssertGreaterThan(d.selectionDidChangeCount, 0, "a programmatic emoji insert must notify the input system the caret moved")
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XCTAssertGreaterThan(d.selectionWillChangeCount, 0)
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}
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func test_insertText_bracketsSelectionChange() {
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let c = makeCanvas()
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let d = InputDelegateSpy(); c.inputDelegate = d
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c.setSelectionForTesting(anchor: c.boxes[0].textStart + 1, head: c.boxes[0].textStart + 1)
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c.insertText("x")
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XCTAssertGreaterThan(d.selectionDidChangeCount, 0)
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XCTAssertGreaterThan(d.selectionWillChangeCount, 0)
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}
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func test_deleteBackward_bracketsSelectionChange() {
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let c = makeCanvas()
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let d = InputDelegateSpy(); c.inputDelegate = d
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c.setSelectionForTesting(anchor: c.boxes[0].textStart + 2, head: c.boxes[0].textStart + 2)
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c.deleteBackward()
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XCTAssertGreaterThan(d.selectionDidChangeCount, 0)
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XCTAssertGreaterThan(d.selectionWillChangeCount, 0)
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}
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/// Regression for the reported "service character" symptom at the MODEL level: an insert → backspace →
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/// re-insert cycle must leave exactly one emoji (one `U+FFFC`), with the caret after it — never a
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/// leftover bare `U+FFFC`.
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func test_insertDeleteReinsert_leavesExactlyOneEmoji() {
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let c = makeCanvas(text: "")
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c.setSelectionForTesting(anchor: c.boxes[0].textStart, head: c.boxes[0].textStart)
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c.insertEmoji(id: "star", altText: nil)
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XCTAssertEqual(c.head, c.boxes[0].textStart + 1, "caret advances past the first emoji")
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c.deleteBackward()
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c.insertEmoji(id: "star", altText: nil)
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let para = c.currentBlocks().compactMap { b -> ParagraphBlock? in
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if case let .paragraph(p) = b { return p }; return nil
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}.first
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XCTAssertEqual(para?.text, "\u{FFFC}", "exactly one U+FFFC remains — no stray service character")
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XCTAssertEqual(para?.runs.filter { $0.attributes.emoji != nil }.count, 1, "exactly one emoji run")
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XCTAssertEqual(c.head, c.boxes[0].textStart + 1, "caret advances past the re-inserted emoji")
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}
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}
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#endif
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