Mihaela Mihaljevic
7e765a3bc1
An abstract type cannot be the type of an instance element (cvc-elt.4.3.2), so an instance xsi:type naming an abstract type is invalid as a substitution even when the element's declared type would otherwise admit it (typeDef01101, xsi:type on an anyType-declared element). The validator only checked for an abstract DECLARED type with no xsi:type; abstractXsiTypeError now also rejects an abstract xsi:type substitute (matched against the namespaced abstract-type set). A concrete type is unaffected. invalid-instances-accepted 34 to 32, no false positive (valid-instances-rejected and valid-schemas-rejected held at 0; a valid instance never names an abstract type via xsi:type), no other bucket moved.
34 lines
1.2 KiB
Swift
34 lines
1.2 KiB
Swift
@testable import PureXML
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import Testing
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/// An `xsi:type` may not name an abstract type: an abstract type cannot be the
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/// type of an instance element (cvc-elt.4.3.2), so it is invalid as a substitution
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/// even when the declared type would otherwise admit it. A concrete derived type
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/// is accepted.
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@Suite("abstract xsi:type")
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struct SchemaAbstractXsiTypeTests {
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private func schema() throws -> PureXML.Schema.Document {
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try PureXML.Schema.Document("""
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<xs:schema xmlns="u" xmlns:xs="http://www.w3.org/2001/XMLSchema" targetNamespace="u">
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<xs:element name="root"/>
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<xs:complexType name="Real"/>
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<xs:complexType name="Virtual" abstract="true"/>
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</xs:schema>
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""")
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}
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private func doc(_ type: String) -> String {
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#"<root xmlns="u" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="\#(type)"/>"#
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}
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@Test("an abstract xsi:type is rejected")
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func test_abstractRejected() throws {
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#expect(try !schema().validate(doc("Virtual")).isEmpty)
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}
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@Test("a concrete xsi:type is accepted")
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func test_concreteAccepted() throws {
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#expect(try schema().validate(doc("Real")).isEmpty)
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}
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}
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