Mihaela Mihaljevic
83e6e27d12
Group @testable imports at the bottom, per public/rules-swift's swiftformat. A behavior-preserving import-ordering reformat across 252 files (mostly tests). --trailingclosures was deliberately not adopted (cosmetic, and swiftformat flags it as caution-worthy).
93 lines
3.3 KiB
Swift
93 lines
3.3 KiB
Swift
import Testing
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@testable import PureXML
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@Suite("Writer")
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struct WriterTests {
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@Test("Compact writing escapes content and round-trips through the parser")
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func test_compactRoundTrip() throws {
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var writer = PureXML.Emitting.Writer(options: .compact)
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writer.writeStartElement("catalog")
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writer.writeStartElement("book")
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writer.writeAttribute("id", "bk101")
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writer.writeString("A & B < C")
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writer.writeEndElement()
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writer.writeEndElement()
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let xml = writer.output
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#expect(xml == "<catalog><book id=\"bk101\">A & B < C</book></catalog>")
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let node = try PureXML.parse(xml)
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let book = node.firstElement?.children.first?.element
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#expect(book?.attributes.first?.value == "bk101")
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#expect(book?.text == "A & B < C")
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}
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@Test("Pretty writing indents element children, inlines text")
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func test_pretty() {
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var writer = PureXML.Emitting.Writer()
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writer.writeStartElement("book")
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writer.writeElement("title", text: "Guide")
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writer.writeEndElement()
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#expect(writer.output == "<book>\n <title>Guide</title>\n</book>")
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}
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@Test("An empty element self-closes")
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func test_emptyElement() {
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var writer = PureXML.Emitting.Writer(options: .compact)
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writer.writeStartElement("br")
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writer.writeEndElement()
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#expect(writer.output == "<br/>")
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}
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@Test("CDATA, comments, and processing instructions are written")
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func test_miscNodes() {
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var writer = PureXML.Emitting.Writer(options: .compact)
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writer.writeStartElement("r")
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writer.writeCData("a<b")
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writer.writeComment("c")
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writer.writeProcessingInstruction(target: "pi", data: "go")
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writer.writeEndElement()
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#expect(writer.output == "<r><![CDATA[a<b]]><!--c--><?pi go?></r>")
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}
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@Test("Writer output matches the tree serializer for the same document")
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func test_parityWithSerializer() {
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let element = PureXML.Model.Element(
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"a",
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attributes: [.init("x", "1\n2")],
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children: [.element(.init("b", children: [.text("hi")]))],
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)
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let serialized = PureXML.serialize(.element(element), options: .compact)
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var writer = PureXML.Emitting.Writer(options: .compact)
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writer.writeStartElement("a")
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writer.writeAttribute("x", "1\n2")
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writer.writeStartElement("b")
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writer.writeString("hi")
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writer.writeEndElement()
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writer.writeEndElement()
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#expect(writer.output == serialized)
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}
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@Test("Misuse is forgiving: late attribute and unbalanced close are ignored")
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func test_forgiving() {
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var writer = PureXML.Emitting.Writer(options: .compact)
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writer.writeStartElement("a")
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writer.writeString("x")
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writer.writeAttribute("ignored", "y") // after content: ignored
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writer.writeEndElement()
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writer.writeEndElement() // unbalanced: ignored
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#expect(writer.output == "<a>x</a>")
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}
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}
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private extension PureXML.Model.Node {
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var firstElement: PureXML.Model.Element? {
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guard case let .document(children) = self else { return element }
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for child in children where child.element != nil {
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return child.element
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}
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return nil
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}
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}
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