Mihaela Mihaljevic
3e3b937e89
An element/attribute default/fixed value must be a valid value of its type (Attribute/Element Locally Valid, XSD 1.0). A fixed="abc" on an xs:integer or a default="1 2" on an xs:int was accepted because the value constraint was never checked at compile time. The value is now validated against its type when the type resolves to a built-in datatype (namespace-aware: only a type in the XSD namespace), normalising whitespace per the type so a default=" 5 " on an integer stays valid. A named or inline user type is left to its own rules, so no valid value constraint is rejected. XSTS: invalid schemas accepted 638 to 621, valid schemas rejected held at 72, instance buckets unchanged.
49 lines
2.1 KiB
Swift
49 lines
2.1 KiB
Swift
@testable import PureXML
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import Testing
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/// An element/attribute `default`/`fixed` value must be a valid value of its
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/// `type` (Attribute/Element Locally Valid, XSD 1.0), checked at compile time.
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/// Only a built-in type is checked (a named/inline user type is left to its own
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/// rules), covering the attO family (`fixed="abc"` on `xs:integer`).
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@Suite("Default/fixed value validity (compile time)")
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struct SchemaValueConstraintValidityTests {
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private func compile(_ body: String) throws {
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_ = try PureXML.Schema.Document("""
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<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
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\(body)
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</xs:schema>
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""")
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}
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private func rejects(_ body: String) -> Bool {
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do { try compile(body)
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return false
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} catch { return true }
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}
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@Test("a built-in-typed default/fixed value outside the type's value space is rejected")
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func test_invalidValues() {
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#expect(rejects(#"<xs:attribute name="a" type="xs:integer" fixed="abc"/>"#))
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#expect(rejects(#"<xs:attribute name="a" type="xs:int" default="abc"/>"#))
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#expect(rejects(#"<xs:element name="e" type="xs:int" default="1 2"/>"#))
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#expect(rejects(#"<xs:element name="e" type="xs:boolean" fixed="maybe"/>"#))
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#expect(rejects(#"<xs:attribute name="a" type="xs:date" default="not-a-date"/>"#))
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}
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@Test("a valid built-in-typed default/fixed value compiles, with whitespace normalized")
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func test_validValues() throws {
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try compile(#"<xs:attribute name="a" type="xs:integer" fixed="42"/>"#)
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try compile(#"<xs:element name="e" type="xs:int" default=" 5 "/>"#)
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try compile(#"<xs:attribute name="a" type="xs:boolean" default="true"/>"#)
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try compile(#"<xs:element name="e" type="xs:string" fixed="anything goes"/>"#)
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}
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@Test("a default/fixed value on a non-built-in type is left alone")
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func test_userTypeUnchecked() throws {
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try compile(#"""
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<xs:simpleType name="t"><xs:restriction base="xs:string"/></xs:simpleType>
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<xs:attribute name="a" type="t" fixed="anything"/>
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"""#)
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}
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}
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