test: add ReadingPositionAdapter.fromValue unit tests (IOS-INFO-034)
- 23 tests: fromValue (12) + clamp (2) + blockId (8) - fromValue: Markdown/Text/Pdf/Image/Epub complete + defaults - fromValue: nil blockId→nil for Markdown, nil chapterId→nil for Epub - fromValue: unknown/nil type → .unknown - clamp: > 1 → 1.0, < 0 → 0.0 - blockId: all 7 DocumentBlock variants + horizontalRule Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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AIStudyApp/AIStudyAppTests/ReadingPositionAdapterTests.swift
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202
AIStudyApp/AIStudyAppTests/ReadingPositionAdapterTests.swift
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import XCTest
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@testable import AIStudyApp
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final class ReadingPositionAdapterTests: XCTestCase {
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// MARK: - fromValue: Markdown
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func test_fromValue_markdown_with_blockId() {
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let v = ReadingPositionValue(type: "Markdown", blockId: "b1", lineNumber: nil,
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pageNumber: nil, chapterId: nil, scrollProgress: 0.5, pageProgress: nil,
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overallProgress: nil, zoomScale: nil, offsetX: nil, offsetY: nil, chapterProgress: nil)
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let pos = ReadingPositionAdapter.fromValue(v)
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guard case let .markdown(blockId, scrollProgress) = pos else {
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return XCTFail("Expected .markdown, got \(String(describing: pos))")
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}
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XCTAssertEqual(blockId, "b1")
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XCTAssertEqual(scrollProgress, 0.5)
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}
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func test_fromValue_markdown_nil_blockId_returns_nil() {
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let v = ReadingPositionValue(type: "Markdown", blockId: nil, lineNumber: nil,
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pageNumber: nil, chapterId: nil, scrollProgress: nil, pageProgress: nil,
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overallProgress: nil, zoomScale: nil, offsetX: nil, offsetY: nil, chapterProgress: nil)
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XCTAssertNil(ReadingPositionAdapter.fromValue(v))
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}
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// MARK: - fromValue: Text
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func test_fromValue_text_with_optional_fields() {
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let v = ReadingPositionValue(type: "Text", blockId: nil, lineNumber: 42,
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pageNumber: nil, chapterId: nil, scrollProgress: 0.8, pageProgress: nil,
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overallProgress: nil, zoomScale: nil, offsetX: nil, offsetY: nil, chapterProgress: nil)
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guard case let .text(lineNumber, scrollProgress) = ReadingPositionAdapter.fromValue(v) else {
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return XCTFail("Expected .text")
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}
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XCTAssertEqual(lineNumber, 42)
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XCTAssertEqual(scrollProgress, 0.8)
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}
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func test_fromValue_text_defaults_lineNumber_to_1() {
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let v = ReadingPositionValue(type: "Text", blockId: nil, lineNumber: nil,
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pageNumber: nil, chapterId: nil, scrollProgress: nil, pageProgress: nil,
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overallProgress: nil, zoomScale: nil, offsetX: nil, offsetY: nil, chapterProgress: nil)
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guard case let .text(lineNumber, _) = ReadingPositionAdapter.fromValue(v) else {
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return XCTFail("Expected .text")
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}
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XCTAssertEqual(lineNumber, 1)
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}
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// MARK: - fromValue: Pdf
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func test_fromValue_pdf_with_all_fields() {
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let v = ReadingPositionValue(type: "Pdf", blockId: nil, lineNumber: nil,
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pageNumber: 5, chapterId: nil, scrollProgress: nil, pageProgress: 0.3,
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overallProgress: 0.15, zoomScale: nil, offsetX: nil, offsetY: nil, chapterProgress: nil)
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guard case let .pdf(pageNumber, pageProgress, overallProgress) = ReadingPositionAdapter.fromValue(v) else {
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return XCTFail("Expected .pdf")
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}
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XCTAssertEqual(pageNumber, 5)
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XCTAssertEqual(pageProgress, 0.3)
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XCTAssertEqual(overallProgress, 0.15)
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}
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func test_fromValue_pdf_defaults_to_page_1() {
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let v = ReadingPositionValue(type: "Pdf", blockId: nil, lineNumber: nil,
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pageNumber: nil, chapterId: nil, scrollProgress: nil, pageProgress: nil,
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overallProgress: nil, zoomScale: nil, offsetX: nil, offsetY: nil, chapterProgress: nil)
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guard case let .pdf(pageNumber, _, _) = ReadingPositionAdapter.fromValue(v) else {
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return XCTFail("Expected .pdf")
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}
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XCTAssertEqual(pageNumber, 1)
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}
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// MARK: - fromValue: Image
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func test_fromValue_image_with_zoom_and_offset() {
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let v = ReadingPositionValue(type: "Image", blockId: nil, lineNumber: nil,
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pageNumber: nil, chapterId: nil, scrollProgress: nil, pageProgress: nil,
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overallProgress: nil, zoomScale: 2.0, offsetX: 100, offsetY: 200, chapterProgress: nil)
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guard case let .image(zoomScale, offsetX, offsetY) = ReadingPositionAdapter.fromValue(v) else {
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return XCTFail("Expected .image")
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}
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XCTAssertEqual(zoomScale, 2.0)
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XCTAssertEqual(offsetX, 100)
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XCTAssertEqual(offsetY, 200)
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}
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func test_fromValue_image_defaults_zoom_to_1() {
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let v = ReadingPositionValue(type: "Image", blockId: nil, lineNumber: nil,
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pageNumber: nil, chapterId: nil, scrollProgress: nil, pageProgress: nil,
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overallProgress: nil, zoomScale: nil, offsetX: nil, offsetY: nil, chapterProgress: nil)
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guard case let .image(zoomScale, _, _) = ReadingPositionAdapter.fromValue(v) else {
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return XCTFail("Expected .image")
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}
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XCTAssertEqual(zoomScale, 1.0)
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}
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// MARK: - fromValue: Epub
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func test_fromValue_epub_with_chapterId() {
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let v = ReadingPositionValue(type: "Epub", blockId: nil, lineNumber: nil,
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pageNumber: nil, chapterId: "ch3", scrollProgress: nil, pageProgress: nil,
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overallProgress: 0.6, zoomScale: nil, offsetX: nil, offsetY: nil, chapterProgress: 0.4)
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guard case let .epub(chapterId, chapterProgress, overallProgress) = ReadingPositionAdapter.fromValue(v) else {
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return XCTFail("Expected .epub")
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}
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XCTAssertEqual(chapterId, "ch3")
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XCTAssertEqual(chapterProgress, 0.4)
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XCTAssertEqual(overallProgress, 0.6)
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}
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func test_fromValue_epub_nil_chapterId_returns_nil() {
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let v = ReadingPositionValue(type: "Epub", blockId: nil, lineNumber: nil,
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pageNumber: nil, chapterId: nil, scrollProgress: nil, pageProgress: nil,
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overallProgress: nil, zoomScale: nil, offsetX: nil, offsetY: nil, chapterProgress: nil)
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XCTAssertNil(ReadingPositionAdapter.fromValue(v))
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}
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// MARK: - fromValue: Unknown / default
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func test_fromValue_unknown_type_returns_unknown() {
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let v = ReadingPositionValue(type: "UnknownType", blockId: nil, lineNumber: nil,
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pageNumber: nil, chapterId: nil, scrollProgress: nil, pageProgress: nil,
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overallProgress: nil, zoomScale: nil, offsetX: nil, offsetY: nil, chapterProgress: nil)
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guard case .unknown = ReadingPositionAdapter.fromValue(v) else {
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return XCTFail("Expected .unknown")
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}
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}
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func test_fromValue_nil_type_returns_unknown() {
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let v = ReadingPositionValue(type: nil, blockId: nil, lineNumber: nil,
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pageNumber: nil, chapterId: nil, scrollProgress: nil, pageProgress: nil,
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overallProgress: nil, zoomScale: nil, offsetX: nil, offsetY: nil, chapterProgress: nil)
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guard case .unknown = ReadingPositionAdapter.fromValue(v) else {
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return XCTFail("Expected .unknown")
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}
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}
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// MARK: - Clamp behavior
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func test_clamp_scrollProgress_above_1() {
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let v = ReadingPositionValue(type: "Text", blockId: nil, lineNumber: nil,
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pageNumber: nil, chapterId: nil, scrollProgress: 1.5, pageProgress: nil,
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overallProgress: nil, zoomScale: nil, offsetX: nil, offsetY: nil, chapterProgress: nil)
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guard case let .text(_, scrollProgress) = ReadingPositionAdapter.fromValue(v) else {
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return XCTFail("Expected .text")
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}
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XCTAssertEqual(scrollProgress, 1.0)
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}
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func test_clamp_progress_negative() {
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let v = ReadingPositionValue(type: "Text", blockId: nil, lineNumber: nil,
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pageNumber: nil, chapterId: nil, scrollProgress: -0.5, pageProgress: nil,
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overallProgress: nil, zoomScale: nil, offsetX: nil, offsetY: nil, chapterProgress: nil)
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guard case let .text(_, scrollProgress) = ReadingPositionAdapter.fromValue(v) else {
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return XCTFail("Expected .text")
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}
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XCTAssertEqual(scrollProgress, 0.0)
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}
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// MARK: - blockId extraction
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func test_blockId_from_heading() {
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let block = DocumentBlock.heading(id: "h1", level: 2, text: "Title")
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XCTAssertEqual(ReadingPositionAdapter.blockId(from: block), "h1")
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}
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func test_blockId_from_paragraph() {
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let block = DocumentBlock.paragraph(id: "p1", text: "Content")
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XCTAssertEqual(ReadingPositionAdapter.blockId(from: block), "p1")
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}
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func test_blockId_from_list() {
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let block = DocumentBlock.list(id: "l1", items: [], ordered: true)
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XCTAssertEqual(ReadingPositionAdapter.blockId(from: block), "l1")
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}
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func test_blockId_from_codeBlock() {
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let block = DocumentBlock.codeBlock(id: "c1", language: "swift", code: "print(\"hi\")")
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XCTAssertEqual(ReadingPositionAdapter.blockId(from: block), "c1")
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}
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func test_blockId_from_quote() {
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let block = DocumentBlock.quote(id: "q1", text: "quote")
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XCTAssertEqual(ReadingPositionAdapter.blockId(from: block), "q1")
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}
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func test_blockId_from_table() {
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let block = DocumentBlock.table(id: "t1", headers: [], rows: [])
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XCTAssertEqual(ReadingPositionAdapter.blockId(from: block), "t1")
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}
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func test_blockId_from_imageBlock() {
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let block = DocumentBlock.imageBlock(id: "img1", alt: "img", source: "file.png")
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XCTAssertEqual(ReadingPositionAdapter.blockId(from: block), "img1")
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}
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func test_blockId_from_horizontalRule() {
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let block = DocumentBlock.horizontalRule(id: "hr1")
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XCTAssertEqual(ReadingPositionAdapter.blockId(from: block), "hr1")
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}
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}
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