Mihaela Mihaljevic
83e6e27d12
Group @testable imports at the bottom, per public/rules-swift's swiftformat. A behavior-preserving import-ordering reformat across 252 files (mostly tests). --trailingclosures was deliberately not adopted (cosmetic, and swiftformat flags it as caution-worthy).
73 lines
3.2 KiB
Swift
73 lines
3.2 KiB
Swift
import Testing
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@testable import PureXML
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@Suite("HTML tokenizer: references, NUL, RCDATA")
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struct HTMLTokenizerTests {
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/// The concatenated text content of the first parsed element.
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private func text(_ html: String) -> String {
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guard case let .document(children) = PureXML.HTML.parse(html), case let .element(element) = children.first else { return "" }
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return element.children.compactMap { if case let .text(value) = $0 { value } else { nil } }.joined()
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}
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@Test("A numeric reference to zero, a surrogate, or an out-of-range value yields U+FFFD")
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func test_numericInvalid() {
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#expect(text("<p>�</p>") == "\u{FFFD}")
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#expect(text("<p>�</p>") == "\u{FFFD}")
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#expect(text("<p>�</p>") == "\u{FFFD}")
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}
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@Test("A numeric reference in the C1 range is mapped to its Windows-1252 character")
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func test_numericC1() {
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#expect(text("<p>€</p>") == "\u{20AC}") // euro
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#expect(text("<p>™</p>") == "\u{2122}") // trade mark
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}
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@Test("A valid numeric reference resolves to its code point")
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func test_numericValid() {
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#expect(text("<p>AB</p>") == "AB")
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}
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@Test("A literal NUL byte becomes U+FFFD")
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func test_nullReplacement() {
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#expect(text("<p>a\u{0}b</p>") == "a\u{FFFD}b")
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}
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@Test("A named reference without a trailing semicolon is still decoded")
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func test_semicolonless() {
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#expect(text("<p>&</p>") == "&")
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#expect(text("<p>©</p>") == "\u{A9}")
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}
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@Test("RCDATA content (title, textarea) decodes references; raw text (style) does not")
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func test_rcdataDecoding() {
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#expect(text("<title>a & b</title>") == "a & b")
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#expect(text("<textarea><x></textarea>") == "<x>")
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#expect(text("<style>a & b</style>") == "a & b")
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}
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@Test("A single leading newline after <textarea> is stripped")
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func test_textareaLeadingNewline() {
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#expect(text("<textarea>\nhello</textarea>") == "hello")
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#expect(text("<textarea>\n\nhello</textarea>") == "\nhello")
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}
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@Test("The HTML4 named entity set decodes across its categories")
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func test_namedEntitySet() {
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#expect(text("<p>½Á×</p>") == "\u{BD}\u{C1}\u{D7}") // Latin-1
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#expect(text("<p>Œ†—</p>") == "\u{152}\u{2020}\u{2014}") // special
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#expect(text("<p>αΩπ</p>") == "\u{3B1}\u{3A9}\u{3C0}") // Greek
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#expect(text("<p>∀∑∞≠</p>") == "\u{2200}\u{2211}\u{221E}\u{2260}") // math
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#expect(text("<p>←→⇔</p>") == "\u{2190}\u{2192}\u{21D4}") // arrows
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#expect(text("<p>♥♦♠</p>") == "\u{2665}\u{2666}\u{2660}") // suits
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#expect(text("<p>© ®</p>") == "\u{A9} \u{AE}") // semicolon-less
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}
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@Test("The full WHATWG reference set decodes astral and multi-codepoint names")
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func test_fullEntitySet() {
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#expect(PureXML.HTML.Tokenizer.namedEntities.count == 2125)
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#expect(text("<p>𝕗</p>") == "\u{1D557}") // astral double-struck f
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#expect(text("<p>≂̸</p>") == "\u{2242}\u{0338}") // two codepoints
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#expect(text("<p>∳</p>") == "\u{2233}") // 31-char name
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}
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}
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