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https://github.com/wu736139669/hapi.git
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weishu
7995334399
Keep normal multi-screen prompts inline and bound oversized messages to a preview. Add a screen-owned paged reader with exact full-text copy and preserved reading state, plus threshold, Unicode, layout, and presentation tests.
74 lines
3.6 KiB
Swift
74 lines
3.6 KiB
Swift
import XCTest
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@testable import Hapi
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final class MessageTextPageTests: XCTestCase {
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func testShortPromptsPreserveLiteralTextAndWhitespace() {
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for source in ["", " **not markdown**\n中👩🏽💻\t ", "a\r\nb\n", String(repeating: "a", count: 2_000)] {
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let preview = MessageTextPage.preview(source)
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XCTAssertEqual(preview.text, source)
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XCTAssertEqual(preview.end, source.endIndex)
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}
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}
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func testPreviewBoundsBothSingleLinePayloadsAndNewlineFloods() {
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let longLine = String(repeating: "中👩🏽💻", count: 150_000)
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let preview = MessageTextPage.preview(longLine)
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XCTAssertEqual(preview.text.count, MessageTextPage.previewCharacters)
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XCTAssertLessThan(preview.end, longLine.endIndex)
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let newlines = String(repeating: "\r\n", count: 10_000)
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XCTAssertEqual(MessageTextPage.preview(newlines).text,
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String(repeating: "\r\n", count: MessageTextPage.previewLines - 1))
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}
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func testNormalMultiScreenPromptsStayCompleteUntilTheSeparateFoldingThreshold() {
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for source in [String(repeating: "中", count: 3_000),
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Array(repeating: "An ordinary multi-line prompt.", count: 80).joined(separator: "\n"),
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String(repeating: "a", count: MessageTextPage.inlineCharacters)] {
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let preview = MessageTextPage.preview(source)
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XCTAssertEqual(preview.text, source)
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XCTAssertEqual(preview.end, source.endIndex)
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}
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let overCharacters = String(repeating: "a", count: MessageTextPage.inlineCharacters + 1)
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XCTAssertEqual(MessageTextPage.preview(overCharacters).text.count, MessageTextPage.previewCharacters)
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let exact = Array(repeating: "log", count: MessageTextPage.inlineLines).joined(separator: "\r\n")
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XCTAssertEqual(MessageTextPage.preview(exact).text, exact)
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let extended = exact + "\r\nnext"
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XCTAssertLessThan(MessageTextPage.preview(extended).end, extended.endIndex)
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XCTAssertEqual(MessageTextPage.preview(extended).text.filter(\.isNewline).count,
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MessageTextPage.previewLines - 1)
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}
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func testPagingRoundTripsUnicodeWhitespaceAndCanGoBack() {
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let sources = [
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String(repeating: "日志 👩🏽💻 e\u{301}\r\n", count: 3_000) + "\t END\n",
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String(repeating: "x", count: 20_001),
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String(repeating: "\n", count: 200),
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"",
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]
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for source in sources {
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var pager = MessageTextPager(source: source)
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var pages = [pager.page.text]
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while pager.hasNext {
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pager.next()
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XCTAssertLessThanOrEqual(pager.page.text.count, MessageTextPage.pageCharacters)
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XCTAssertLessThanOrEqual(pager.page.text.filter(\.isNewline).count, MessageTextPage.pageLines - 1)
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XCTAssertFalse(pager.page.text.isEmpty)
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pages.append(pager.page.text)
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}
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XCTAssertEqual(pages.joined(), source)
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XCTAssertEqual(pager.source, source, "Full copy must not use the preview/current page")
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let last = pager.page
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pager.next()
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XCTAssertEqual(pager.page, last)
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for expected in pages.dropLast().reversed() {
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pager.previous()
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XCTAssertEqual(pager.page.text, expected)
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}
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XCTAssertEqual(pager.number, 1)
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XCTAssertFalse(pager.hasPrevious)
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pager.previous()
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XCTAssertEqual(pager.page.text, pages[0])
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}
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}
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}
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