Mihaela Mihaljevic
4460508924
A complex type without its own final attribute now inherits the schema's
finalDefault as its {final}, so finalDefault=#all or restriction/extension
blocks a complexContent restriction or extension derived from it. An explicit
final= overrides the default to empty. Complex types previously honoured only
an explicit final (elements already inherited finalDefault).
XSTS invalid-schemas-accepted 189 to 185, no other bucket moved.
227 lines
12 KiB
Swift
227 lines
12 KiB
Swift
@testable import PureXML
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import Testing
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@Suite("XSD substitution-group member type derivation (e-props-correct.4)")
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struct SchemaSubstitutionTypeTests {
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private let xsd = "xmlns:xs=\"http://www.w3.org/2001/XMLSchema\""
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private func compiles(_ body: String) -> Bool {
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(try? PureXML.Schema.Document("<xs:schema \(xsd)>\(body)</xs:schema>")) != nil
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}
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@Test("A member whose type is unrelated to the head's type is rejected")
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func test_unrelatedMemberType() {
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#expect(!compiles(
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"<xs:element name=\"head\" type=\"xs:string\"/>"
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+ "<xs:element name=\"member\" substitutionGroup=\"head\" type=\"xs:int\"/>",
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))
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}
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@Test("A member whose type equals or derives from the head's type is accepted")
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func test_derivingMemberType() {
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// Identical type.
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#expect(compiles(
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"<xs:element name=\"head\" type=\"xs:string\"/>"
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+ "<xs:element name=\"member\" substitutionGroup=\"head\" type=\"xs:string\"/>",
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))
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// Built-in lattice: xs:int derives from xs:integer.
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#expect(compiles(
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"<xs:element name=\"head\" type=\"xs:integer\"/>"
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+ "<xs:element name=\"member\" substitutionGroup=\"head\" type=\"xs:int\"/>",
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))
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// User restriction chain.
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#expect(compiles(
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"<xs:simpleType name=\"Small\"><xs:restriction base=\"xs:int\"/></xs:simpleType>"
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+ "<xs:element name=\"head\" type=\"xs:int\"/>"
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+ "<xs:element name=\"member\" substitutionGroup=\"head\" type=\"Small\"/>",
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))
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}
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@Test("An untyped head admits any member type")
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func test_untypedHeadIsUrType() {
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#expect(compiles(
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"<xs:element name=\"head\"/>"
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+ "<xs:element name=\"member\" substitutionGroup=\"head\" type=\"xs:int\"/>",
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))
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}
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/// `cos-st-derived-ok` clause 2.4: a type validly derives from a union when it
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/// derives from one of the union's member types. List/union derivation is not
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/// modelled, so the check stands down: an integer member of a union-typed head
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/// must compile rather than be wrongly rejected.
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@Test("A member of a union-typed head is not rejected (list/union stand-down)")
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func test_unionTypedHeadStandsDown() {
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#expect(compiles(
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"<xs:simpleType name=\"U\"><xs:union memberTypes=\"xs:float xs:integer\"/></xs:simpleType>"
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+ "<xs:element name=\"head\" type=\"U\"/>"
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+ "<xs:element name=\"member\" substitutionGroup=\"head\" type=\"xs:integer\"/>",
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))
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}
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/// A local element sharing the member's name carries a different type; the
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/// member's type must be read from its own declaration, not conflated with the
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/// local one, so this valid schema compiles.
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@Test("A local element sharing the member name does not supply the member type")
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func test_localNameDoesNotShadowMemberType() {
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#expect(compiles(
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"<xs:element name=\"head\" type=\"xs:boolean\"/>"
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+ "<xs:element name=\"foo\" substitutionGroup=\"head\" type=\"xs:boolean\"/>"
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+ "<xs:element name=\"root\"><xs:complexType><xs:choice>"
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+ "<xs:element ref=\"head\"/>"
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+ "<xs:element name=\"foo\" type=\"xs:int\"/>"
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+ "</xs:choice></xs:complexType></xs:element>",
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))
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}
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/// With an import but no loader the check stands down; once the import is
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/// loaded through a `schemaLoader` the member type is checked against the head.
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@Test("With an unloaded import the check stands down")
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func test_importWithoutLoaderStandsDown() {
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let main = "<xs:schema \(xsd) xmlns:imp=\"urn:imp\">"
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+ "<xs:import namespace=\"urn:imp\" schemaLocation=\"imp.xsd\"/>"
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+ "<xs:element name=\"member\" substitutionGroup=\"imp:head\" type=\"xs:int\"/></xs:schema>"
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#expect((try? PureXML.Schema.Document(main)) != nil)
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}
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@Test("With a loaded import an unrelated member type is rejected")
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func test_loadedImportChecksMemberType() {
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let imported = "<xs:schema \(xsd) targetNamespace=\"urn:imp\">"
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+ "<xs:element name=\"head\" type=\"xs:string\"/></xs:schema>"
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let main = "<xs:schema \(xsd) xmlns:imp=\"urn:imp\">"
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+ "<xs:import namespace=\"urn:imp\" schemaLocation=\"imp.xsd\"/>"
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+ "<xs:element name=\"member\" substitutionGroup=\"imp:head\" type=\"xs:int\"/></xs:schema>"
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#expect((try? PureXML.Schema.Document(main, schemaLoader: { $0 == "imp.xsd" ? imported : nil })) == nil)
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}
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@Test("Substitution group member is blocked if type derivation method is final on the head element")
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func test_finalSubstitutionExclusion() {
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// Direct extension derivation rejected when final="extension"
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#expect(!compiles(
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"<xs:complexType name=\"Base\"><xs:sequence/></xs:complexType>"
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+ "<xs:complexType name=\"Ext\"><xs:complexContent><xs:extension base=\"Base\"><xs:sequence/></xs:extension></xs:complexContent></xs:complexType>"
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+ "<xs:element name=\"head\" type=\"Base\" final=\"extension\"/>"
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+ "<xs:element name=\"member\" substitutionGroup=\"head\" type=\"Ext\"/>",
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))
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// Direct restriction derivation accepted when final="extension"
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#expect(compiles(
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"<xs:complexType name=\"Base\"><xs:sequence/></xs:complexType>"
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+ "<xs:complexType name=\"Res\"><xs:complexContent><xs:restriction base=\"Base\"><xs:sequence/></xs:restriction></xs:complexContent></xs:complexType>"
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+ "<xs:element name=\"head\" type=\"Base\" final=\"extension\"/>"
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+ "<xs:element name=\"member\" substitutionGroup=\"head\" type=\"Res\"/>",
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))
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// Indirect extension derivation rejected when final="extension"
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#expect(!compiles(
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"<xs:complexType name=\"Base\"><xs:sequence/></xs:complexType>"
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+ "<xs:complexType name=\"Mid\"><xs:complexContent><xs:extension base=\"Base\"><xs:sequence/></xs:extension></xs:complexContent></xs:complexType>"
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+ "<xs:complexType name=\"Derived\"><xs:complexContent><xs:restriction base=\"Mid\"><xs:sequence/></xs:restriction></xs:complexContent></xs:complexType>"
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+ "<xs:element name=\"head\" type=\"Base\" final=\"extension\"/>"
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+ "<xs:element name=\"member\" substitutionGroup=\"head\" type=\"Derived\"/>",
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))
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// Schema finalDefault="extension" rejects extension derivation
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#expect((try? PureXML.Schema.Document("""
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<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" finalDefault="extension">
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<xs:complexType name="Base"><xs:sequence/></xs:complexType>
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<xs:complexType name="Ext"><xs:complexContent><xs:extension base="Base"><xs:sequence/></xs:extension></xs:complexContent></xs:complexType>
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<xs:element name="head" type="Base"/>
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<xs:element name="member" substitutionGroup="head" type="Ext"/>
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</xs:schema>
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""")) == nil)
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// final="#all" rejects both extension and restriction
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#expect(!compiles(
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"<xs:complexType name=\"Base\"><xs:sequence/></xs:complexType>"
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+ "<xs:complexType name=\"Ext\"><xs:complexContent><xs:extension base=\"Base\"><xs:sequence/></xs:extension></xs:complexContent></xs:complexType>"
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+ "<xs:element name=\"head\" type=\"Base\" final=\"#all\"/>"
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+ "<xs:element name=\"member\" substitutionGroup=\"head\" type=\"Ext\"/>",
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))
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}
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@Test("Substitution group member final exclusions: local name collisions and built-ins")
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func test_finalSubstitutionExclusionEdgeCases() {
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// Local element name collision: local element does not overwrite global final setting.
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// Base carries an explicit empty final so the schema's finalDefault="extension" (which a
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// complex type also inherits as its {final}) does not itself block Ext's extension of Base;
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// the point under test is that the LOCAL element named "head" inside Ext does not clobber
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// the GLOBAL "head" element's final="restriction".
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#expect((try? PureXML.Schema.Document("""
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<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" finalDefault="extension">
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<xs:element name="head" type="Base" final="restriction"/>
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<xs:element name="member" substitutionGroup="head" type="Ext"/>
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<xs:complexType name="Base" final=""><xs:sequence/></xs:complexType>
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<xs:complexType name="Ext" final="">
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<xs:complexContent>
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<xs:extension base="Base">
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<xs:sequence>
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<xs:element name="head" type="xs:string"/>
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</xs:sequence>
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</xs:extension>
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</xs:complexContent>
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</xs:complexType>
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</xs:schema>
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""")) != nil)
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// Built-in simple type restriction rejected when final="restriction"
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#expect(!compiles(
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"<xs:element name=\"head\" type=\"xs:decimal\" final=\"restriction\"/>"
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+ "<xs:element name=\"member\" substitutionGroup=\"head\" type=\"xs:int\"/>",
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))
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}
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@Test("Substitution group member is blocked if inline complexType derivation method is final on the head element")
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func test_finalSubstitutionExclusionInlineType() {
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// Member3 derives by extension from HeadType inline, but Head has final="extension" -> rejected
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#expect(!compiles(
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"<xs:complexType name=\"HeadType\"><xs:sequence/></xs:complexType>"
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+ "<xs:element name=\"Head\" type=\"HeadType\" final=\"extension\"/>"
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+ "<xs:element name=\"Member3\" substitutionGroup=\"Head\">"
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+ " <xs:complexType><xs:complexContent>"
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+ " <xs:extension base=\"HeadType\"><xs:sequence/></xs:extension>"
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+ " </xs:complexContent></xs:complexType>"
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+ "</xs:element>",
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))
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// Member3 derives by extension from HeadType inline, Head has final="restriction" -> accepted
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#expect(compiles(
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"<xs:complexType name=\"HeadType\"><xs:sequence/></xs:complexType>"
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+ "<xs:element name=\"Head\" type=\"HeadType\" final=\"restriction\"/>"
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+ "<xs:element name=\"Member3\" substitutionGroup=\"Head\">"
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+ " <xs:complexType><xs:complexContent>"
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+ " <xs:extension base=\"HeadType\"><xs:sequence/></xs:extension>"
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+ " </xs:complexContent></xs:complexType>"
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+ "</xs:element>",
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))
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}
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@Test("Adversarial Critic: member with inline simpleType restricting another type")
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func test_inlineSimpleTypeRestrictingAnotherType() {
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#expect(compiles(
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"<xs:element name=\"head\" type=\"xs:integer\"/>"
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+ "<xs:element name=\"member\" substitutionGroup=\"head\">"
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+ " <xs:simpleType>"
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+ " <xs:restriction>"
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+ " <xs:simpleType>"
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+ " <xs:restriction base=\"xs:int\"/>"
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+ " </xs:simpleType>"
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+ " </xs:restriction>"
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+ " </xs:simpleType>"
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+ "</xs:element>",
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))
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}
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@Test("Adversarial Critic: member with inline simpleType restricting a named list type")
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func test_inlineSimpleTypeRestrictingNamedList() {
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#expect(compiles(
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"<xs:simpleType name=\"MyList\"><xs:list itemType=\"xs:int\"/></xs:simpleType>"
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+ "<xs:element name=\"head\" type=\"xs:anySimpleType\"/>"
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+ "<xs:element name=\"member\" substitutionGroup=\"head\">"
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+ " <xs:simpleType>"
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+ " <xs:restriction base=\"MyList\"/>"
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+ " </xs:simpleType>"
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+ "</xs:element>",
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))
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}
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}
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