Mihaela Mihaljevic
3415ff3d9a
A RELAX NG schema document is validated before pattern interpretation in three layers: the section-3 grammar check (vocabulary, attributes, arity, text, QNames, datatypeLibrary URIs, hrefs, 4.16 excepts, xmlns prohibitions), compiler checks (4.17 combine rules, unresolved refs, parentRef scope, startless grammars, include/externalRef cycles and overrides, grammar-checked loaded documents, unknown datatypes, built-in-library params), and the 4.19/7.1-7.4 restrictions over the compiled algebra after 4.20/4.21 normalization (prohibited paths, content types, duplicate attributes via representative-name overlap, infinite-class attributes outside oneOrMore, interleave constraints), with recursion detection deliberately before normalization. Incorrect schemas: 213 compiling down to 7, all the pre-Fifth-Edition name-class class (count asserted). Two leniency tests updated to spec behavior. Closes #131
59 lines
2.3 KiB
Swift
59 lines
2.3 KiB
Swift
@testable import PureXML
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import Testing
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@Suite("RELAX NG combine on define")
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struct RelaxNGCombineTests {
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private let rngNamespace = "xmlns=\"http://relaxng.org/ns/structure/1.0\""
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private func valid(_ rng: String, _ xml: String) throws -> Bool {
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try PureXML.Schema.RelaxNG(rng).validate(xml)
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}
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@Test("combine=choice merges two definitions of the same name as a choice")
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func test_combineChoice() throws {
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let rng = """
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<grammar \(rngNamespace)>
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<start><ref name="content"/></start>
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<define name="content"><element name="a"><empty/></element></define>
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<define name="content" combine="choice"><element name="b"><empty/></element></define>
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</grammar>
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"""
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// Both alternatives validate against the merged choice.
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#expect(try valid(rng, "<a/>"))
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#expect(try valid(rng, "<b/>"))
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#expect(try !valid(rng, "<c/>"))
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}
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@Test("combine=interleave merges two definitions as an interleave")
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func test_combineInterleave() throws {
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let rng = """
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<grammar \(rngNamespace)>
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<start><element name="root"><ref name="content"/></element></start>
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<define name="content"><element name="a"><empty/></element></define>
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<define name="content" combine="interleave"><element name="b"><empty/></element></define>
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</grammar>
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"""
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// Interleave admits the two children in either order.
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#expect(try valid(rng, "<root><a/><b/></root>"))
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#expect(try valid(rng, "<root><b/><a/></root>"))
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// Both are required by the interleave, so one alone fails.
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#expect(try !valid(rng, "<root><a/></root>"))
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}
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@Test("Two defines of one name must not both omit combine (4.17)")
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func test_plainRedefinitionRejected() throws {
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let rng = """
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<grammar \(rngNamespace)>
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<start><ref name="content"/></start>
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<define name="content"><element name="a"><empty/></element></define>
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<define name="content"><element name="b"><empty/></element></define>
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</grammar>
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"""
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// Spec 4.17: at most one define of a name may omit combine; a second
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// combine-less definition is a schema error, not a replacement.
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#expect(throws: PureXML.Schema.SchemaError.self) {
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_ = try PureXML.Schema.RelaxNG(rng)
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}
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}
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}
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