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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>
56 lines
2.9 KiB
Swift
56 lines
2.9 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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/// Regression: a paragraph that becomes empty through an EDIT (pressing Enter for a new line, or deleting a
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/// line's last character) must adopt the current typing direction so its caret opens on the correct side.
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/// `refreshEmptyBoxWritingDirections()` previously ran only on reload / focus / keyboard-change, never after
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/// an in-place edit — so a newly-created empty RTL line kept its caret on the LEFT.
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final class RTLEmptyLineCaretTests: XCTestCase {
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private func canvas(_ paragraphs: [ParagraphBlock], keyboard: String) -> DocumentCanvasView {
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let v = DocumentCanvasView()
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v.keyboardLanguageProviderForTesting = { keyboard }
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v.setParagraphs(paragraphs, width: 300)
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v.frame = CGRect(x: 0, y: 0, width: 300, height: 200); v.layoutIfNeeded()
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v.refreshEmptyBoxWritingDirections() // models the initial focus pass
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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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private func end(_ box: CanvasBlock) -> Int { box.textStart + box.textLength }
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func test_pressingEnter_inRTL_newEmptyLine_caretOnRight() {
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let v = canvas([ParagraphBlock(id: BlockID("a"), runs: [TextRun(text: "سلام")])], keyboard: "ar")
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caret(v, end(v.boxes[0]))
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v.insertText("\n") // Enter → new empty paragraph below
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XCTAssertEqual(v.boxes.count, 2)
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XCTAssertEqual(v.boxes[1].textLength, 0, "the new paragraph is empty")
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let x = v.boxes[1].textLayout.caretRect(atOffset: 0).minX
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XCTAssertGreaterThan(x, 150, "new empty RTL line caret should sit in the right half (was on the left)")
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}
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func test_deletingLastChar_inRTL_caretReturnsToRight() {
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// One paragraph holding a single Arabic char; delete it → empty paragraph, caret should flip right.
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let v = canvas([ParagraphBlock(id: BlockID("a"), runs: [TextRun(text: "س")])], keyboard: "ar")
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caret(v, end(v.boxes[0]))
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v.deleteBackward() // now empty
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XCTAssertEqual(v.boxes[0].textLength, 0)
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let x = v.boxes[0].textLayout.caretRect(atOffset: 0).minX
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XCTAssertGreaterThan(x, 150, "emptied RTL line caret should return to the right half")
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}
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func test_pressingEnter_inLTR_newEmptyLine_caretOnLeft() {
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// Guard: the same path keeps the LTR caret on the left.
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let v = canvas([ParagraphBlock(id: BlockID("a"), runs: [TextRun(text: "hello")])], keyboard: "en")
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caret(v, end(v.boxes[0]))
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v.insertText("\n")
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XCTAssertEqual(v.boxes.count, 2)
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let x = v.boxes[1].textLayout.caretRect(atOffset: 0).minX
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XCTAssertLessThan(x, 150, "new empty LTR line caret should stay on the left")
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}
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}
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#endif
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