Mihaela Mihaljevic
4b03c45434
The namespace layer rejects malformed qualified names, declarations of the xmlns prefix, misbindings of the xml prefix and either reserved namespace name (including as the default namespace), and prefix undeclaration; attributes must be distinct by expanded name; PI targets and entity/notation names are NCNames; and DTD-typed xmlns values bind their normalized form. Clears all 18 namespace cases from the eduni baseline; xmltest valid/sa/012 joins the documented deviations per the suite's own NAMESPACE='no' flag. Closes #136
71 lines
2.8 KiB
Swift
71 lines
2.8 KiB
Swift
@testable import PureXML
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import Testing
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/// The Namespaces 1.0 constraints (#136): reserved prefixes and namespace
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/// names, qualified-name shape, duplicate expanded-name attributes, NCName
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/// rules for PI targets and entity/notation names, and DTD-typed
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/// normalization of binding values.
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@Suite("Namespace constraints")
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struct NamespaceConstraintTests {
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private func rejects(_ xml: String) -> Bool {
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(try? PureXML.parse(xml, limits: .init(allowDoctype: true))) == nil
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}
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@Test("Malformed qualified names are rejected")
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func test_qualifiedNameShape() {
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#expect(rejects("<foo: />"))
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#expect(rejects("<:foo />"))
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#expect(rejects("<a:b:c xmlns:a=\"urn:x\"/>"))
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#expect(rejects("<foo xmlns:=\"urn:x\"/>"))
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#expect(!rejects("<a:b xmlns:a=\"urn:x\"/>"))
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}
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@Test("Reserved prefixes and namespace names are protected")
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func test_reservedBindings() {
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#expect(rejects("<f xmlns:xml=\"urn:wrong\"/>"))
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#expect(!rejects("<f xmlns:xml=\"http://www.w3.org/XML/1998/namespace\"/>"))
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#expect(rejects("<f xmlns:yml=\"http://www.w3.org/XML/1998/namespace\"/>"))
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#expect(rejects("<f xmlns:xmlns=\"http://www.w3.org/2000/xmlns/\"/>"))
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#expect(rejects("<f xmlns:xmlns=\"urn:other\"/>"))
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#expect(rejects("<f xmlns:ymlns=\"http://www.w3.org/2000/xmlns/\"/>"))
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#expect(rejects("<f xmlns=\"http://www.w3.org/XML/1998/namespace\"/>"))
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#expect(rejects("<f xmlns=\"http://www.w3.org/2000/xmlns/\"/>"))
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}
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@Test("A prefix may not be undeclared in Namespaces 1.0")
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func test_noPrefixUndeclaration() {
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#expect(rejects("<f xmlns:a=\"\"/>"))
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#expect(!rejects("<f xmlns=\"\"/>"))
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}
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@Test("Attributes must be distinct by expanded name")
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func test_duplicateExpandedNames() {
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let xml = "<f xmlns:a=\"urn:x\" xmlns:b=\"urn:x\"><g a:attr=\"1\" b:attr=\"2\"/></f>"
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#expect(rejects(xml))
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let distinct = "<f xmlns:a=\"urn:x\" xmlns:b=\"urn:y\"><g a:attr=\"1\" b:attr=\"2\"/></f>"
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#expect(!rejects(distinct))
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}
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@Test("PI targets and entity/notation names are NCNames")
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func test_ncNames() {
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#expect(rejects("<?a:b data?>\n<f/>"))
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#expect(rejects("<!DOCTYPE f [<!ELEMENT f ANY><!ENTITY a:b \"x\">]>\n<f/>"))
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#expect(rejects("<!DOCTYPE f [<!ELEMENT f ANY><!NOTATION a:b SYSTEM \"n\">]>\n<f/>"))
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}
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@Test("A DTD-typed xmlns value binds its normalized form")
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func test_typedBindingNormalization() {
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let xml = """
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<!DOCTYPE f [
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<!ELEMENT f ANY><!ELEMENT g ANY>
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<!ATTLIST f xmlns:a CDATA #IMPLIED xmlns:b NMTOKEN #IMPLIED>
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<!ATTLIST g a:attr CDATA #IMPLIED b:attr CDATA #IMPLIED>
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]>
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<f xmlns:a="urn:xyzzy" xmlns:b=" urn:xyzzy ">
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<g a:attr="1" b:attr="2"/>
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</f>
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"""
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#expect(rejects(xml))
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}
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}
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