Mihaela Mihaljevic
322fd013e9
generate-id returns a stable per-node identifier (the context node when no argument is given, the empty string for an empty node-set); system-property reports the XSLT version and vendor; element-available and function-available answer against the implemented instruction and function sets; unparsed-entity-uri is a stub. Part of #82.
66 lines
2.7 KiB
Swift
66 lines
2.7 KiB
Swift
@testable import PureXML
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import Testing
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@Suite("XSLT functions: generate-id, system-property, *-available")
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struct XSLTFunctionTests {
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private let xsl = "xmlns:xsl=\"http://www.w3.org/1999/XSL/Transform\""
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private func transform(_ stylesheet: String, _ source: String) throws -> String {
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try PureXML.XSLT.transform(stylesheet: stylesheet, source: source)
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}
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private func valueOf(_ select: String) -> String {
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"""
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<xsl:stylesheet version="1.0" \(xsl)>
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<xsl:output method="text"/>
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<xsl:template match="/"><xsl:value-of select="\(select)"/></xsl:template>
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</xsl:stylesheet>
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"""
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}
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@Test("system-property reports the XSLT version and vendor")
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func test_systemProperty() throws {
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#expect(try transform(valueOf("system-property('xsl:version')"), "<x/>") == "1")
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#expect(try transform(valueOf("system-property('xsl:vendor')"), "<x/>") == "PureXML")
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}
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@Test("element-available is true for a supported instruction, false otherwise")
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func test_elementAvailable() throws {
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#expect(try transform(valueOf("element-available('xsl:if')"), "<x/>") == "true")
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#expect(try transform(valueOf("element-available('xsl:nonesuch')"), "<x/>") == "false")
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}
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@Test("function-available is true for known functions, false otherwise")
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func test_functionAvailable() throws {
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#expect(try transform(valueOf("function-available('concat')"), "<x/>") == "true")
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#expect(try transform(valueOf("function-available('generate-id')"), "<x/>") == "true")
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#expect(try transform(valueOf("function-available('made-up')"), "<x/>") == "false")
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}
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@Test("generate-id is stable per node and differs between nodes")
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func test_generateId() throws {
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// Same node twice is equal; two different nodes are not.
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let same = """
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<xsl:stylesheet version="1.0" \(xsl)>
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<xsl:output method="text"/>
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<xsl:template match="/"><xsl:value-of select="generate-id(r/a) = generate-id(r/a)"/></xsl:template>
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</xsl:stylesheet>
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"""
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let differ = """
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<xsl:stylesheet version="1.0" \(xsl)>
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<xsl:output method="text"/>
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<xsl:template match="/"><xsl:value-of select="generate-id(r/a) = generate-id(r/b)"/></xsl:template>
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</xsl:stylesheet>
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"""
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#expect(try transform(same, "<r><a/><b/></r>") == "true")
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#expect(try transform(differ, "<r><a/><b/></r>") == "false")
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}
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@Test("generate-id produces an XML-name-shaped id")
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func test_generateIdShape() throws {
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let out = try transform(valueOf("generate-id(.)"), "<x/>")
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#expect(out.hasPrefix("N"))
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#expect(out.count > 1)
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}
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}
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