Mihaela Mihaljevic
9168f990d6
Parse the XML declaration's pseudo-attributes instead of skipping the <?xml?> processing instruction: - version, encoding, and standalone are surfaced on a new XMLDeclaration, returned from parseWithDocumentType and via PureXML.xmlDeclaration(_:). - The pseudo-attributes are validated: fixed order (version, encoding, standalone), known names only, and standalone must be yes or no. A malformed declaration is rejected. - The declared version is now readable, a prerequisite for XML 1.1. parseWithDocumentType returns a ParsedDocument struct (node, documentType, declaration) rather than a 2-tuple; the member names are unchanged so existing call sites are unaffected. Closes #95
65 lines
2.3 KiB
Swift
65 lines
2.3 KiB
Swift
@testable import PureXML
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import Testing
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@Suite("XML declaration")
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struct XMLDeclarationTests {
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@Test("version, encoding, and standalone are all surfaced")
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func test_full() {
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let declaration = PureXML.xmlDeclaration("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"yes\"?><r/>")
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#expect(declaration?.version == "1.0")
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#expect(declaration?.encoding == "UTF-8")
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#expect(declaration?.standalone == true)
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}
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@Test("standalone=no is parsed as false")
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func test_standaloneNo() {
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let declaration = PureXML.xmlDeclaration("<?xml version=\"1.1\" standalone=\"no\"?><r/>")
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#expect(declaration?.version == "1.1")
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#expect(declaration?.standalone == false)
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}
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@Test("A version-only declaration leaves encoding and standalone nil")
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func test_versionOnly() {
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let declaration = PureXML.xmlDeclaration("<?xml version=\"1.0\"?><r/>")
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#expect(declaration?.version == "1.0")
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#expect(declaration?.encoding == nil)
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#expect(declaration?.standalone == nil)
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}
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@Test("A document without a declaration has none")
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func test_none() {
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#expect(PureXML.xmlDeclaration("<r/>") == nil)
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}
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@Test("Pseudo-attributes out of order are rejected")
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func test_outOfOrder() {
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#expect(throws: PureXML.Parsing.ParseError.self) {
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_ = try PureXML.parse("<?xml encoding=\"UTF-8\" version=\"1.0\"?><r/>")
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}
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}
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@Test("An illegal standalone value is rejected")
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func test_badStandalone() {
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#expect(throws: PureXML.Parsing.ParseError.self) {
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_ = try PureXML.parse("<?xml version=\"1.0\" standalone=\"maybe\"?><r/>")
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}
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}
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@Test("An unknown pseudo-attribute is rejected")
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func test_unknownPseudoAttribute() {
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#expect(throws: PureXML.Parsing.ParseError.self) {
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_ = try PureXML.parse("<?xml version=\"1.0\" mode=\"strict\"?><r/>")
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}
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}
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@Test("A valid declaration still parses the document tree")
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func test_treeStillParses() throws {
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let node = try PureXML.parse("<?xml version=\"1.0\"?><r>hi</r>")
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guard case let .document(children) = node, let root = children.compactMap(\.element).first else {
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Issue.record("no root")
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return
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}
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#expect(root.name.localName == "r")
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}
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}
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