Mihaela Mihaljevic
22cd88f8ba
Named attribute sets apply to a literal result element or xsl:element via use-attribute-sets; sets may include other sets recursively with a cycle guard, set attributes are lowest precedence so the element's own attributes override them, and same-named attributes collapse to the last. Folded across xsl:include/xsl:import. Splits the element-building helpers into XSLTElements.swift to stay within the file-length budget.
74 lines
2.8 KiB
Swift
74 lines
2.8 KiB
Swift
@testable import PureXML
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import Testing
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@Suite("XSLT parser")
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struct XSLTParserTests {
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private let stylesheet = """
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<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
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<xsl:template match="/">
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<html><body><xsl:apply-templates/></body></html>
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</xsl:template>
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<xsl:template match="book/title" priority="2">
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<h1><xsl:value-of select="."/></h1>
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</xsl:template>
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<xsl:template match="*">
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<xsl:for-each select="item"><xsl:value-of select="@id"/></xsl:for-each>
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</xsl:template>
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</xsl:stylesheet>
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"""
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@Test("Templates are extracted with their match and priority")
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func test_templates() throws {
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let sheet = try PureXML.XSLT.XSLTParser.parse(stylesheet)
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#expect(sheet.templates.count == 3)
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#expect(sheet.templates.map(\.match) == ["/", "book/title", "*"])
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#expect(sheet.templates[1].priority == 2)
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}
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@Test("Default priorities follow the XSLT rules")
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func test_defaultPriority() {
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let priority = PureXML.XSLT.XSLTParser.defaultPriority
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#expect(priority("book") == 0)
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#expect(priority("book/title") == 0.5)
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#expect(priority("*") == -0.5)
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#expect(priority("ns:*") == -0.25)
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}
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@Test("A literal result element carries its children and apply-templates")
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func test_literalElement() throws {
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let sheet = try PureXML.XSLT.XSLTParser.parse(stylesheet)
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guard case let .literalElement(name, _, _, body) = sheet.templates[0].body.first else {
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Issue.record("expected a literal element")
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return
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}
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#expect(name.localName == "html")
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#expect(!body.isEmpty)
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}
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@Test("for-each and value-of are parsed")
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func test_forEach() throws {
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let sheet = try PureXML.XSLT.XSLTParser.parse(stylesheet)
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guard case let .forEach(select, _, body) = sheet.templates[2].body.first else {
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Issue.record("expected for-each")
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return
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}
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#expect(select == "item")
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guard case .valueOf(select: "@id") = body.first else {
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Issue.record("expected value-of")
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return
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}
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}
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@Test("Attribute value templates split literals and expressions")
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func test_valueTemplate() {
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let parts = PureXML.XSLT.XSLTParser.valueTemplate("id-{@n}-{{x}}")
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guard parts.count == 3 else {
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Issue.record("expected three parts, got \(parts.count)")
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return
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}
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if case let .literal(text) = parts[0] { #expect(text == "id-") } else { Issue.record("part 0") }
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if case let .expression(expr) = parts[1] { #expect(expr == "@n") } else { Issue.record("part 1") }
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if case let .literal(text) = parts[2] { #expect(text == "-{x}") } else { Issue.record("part 2") }
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}
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}
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