Mihaela Mihaljevic
2a77b56d2f
- Eval-time prefix bindings: Query.evaluate(over:namespaces:) and value(at:...:namespaces:) supply prefix to URI bindings, so a name test like q:item resolves q to a URI and matches by namespace regardless of the document's own prefix. The match is namespace-aware only when bindings are present, so existing unprefixed/prefix-string queries are unchanged. - XPointer schemes: xpath1() evaluates an XPath expression (like xpointer()), and xmlns(p=uri) binds a prefix for the expression parts that follow it, threaded into the XPath evaluation. The range() scheme (and so XInclude range inclusion) remains. Part of #88
52 lines
2.3 KiB
Swift
52 lines
2.3 KiB
Swift
@testable import PureXML
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import Testing
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@Suite("XPath eval-time namespaces and XPointer schemes")
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struct XPathNamespaceTests {
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@Test("A name test resolves through eval-time prefix bindings regardless of document prefix")
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func test_evalTimeNamespace() throws {
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// The document uses prefix 'd'; the query uses 'q' bound to the same URI.
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let node = try PureXML.parse("<d:root xmlns:d=\"urn:x\"><d:item/></d:root>")
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let query = try PureXML.XPath.Query("//q:item")
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let bound = query.evaluate(over: node, namespaces: ["q": "urn:x"])
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#expect(bound.count == 1)
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// Without the binding, the query prefix 'q' does not match the document's 'd'.
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#expect(query.evaluate(over: node).isEmpty)
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}
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@Test("A binding to the wrong URI does not match")
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func test_wrongNamespace() throws {
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let node = try PureXML.parse("<d:root xmlns:d=\"urn:x\"><d:item/></d:root>")
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let query = try PureXML.XPath.Query("//q:item")
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#expect(query.evaluate(over: node, namespaces: ["q": "urn:other"]).isEmpty)
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}
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@Test("Existing unprefixed queries are unaffected by an empty binding set")
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func test_noBindingUnchanged() throws {
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let node = try PureXML.parse("<root><item/><item/></root>")
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#expect(try PureXML.XPath.Query("//item").evaluate(over: node).count == 2)
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}
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@Test("XPointer xpath1() evaluates an XPath expression")
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func test_xpath1Scheme() throws {
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let node = try PureXML.parse("<root><item/><item/></root>")
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let result = try PureXML.XPointer.evaluate("xpath1(//item)", over: node)
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#expect(result.count == 2)
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}
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@Test("XPointer xmlns() binds a prefix for the following xpointer part")
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func test_xmlnsScheme() throws {
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let node = try PureXML.parse("<d:root xmlns:d=\"urn:x\"><d:item/></d:root>")
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let result = try PureXML.XPointer.evaluate("xmlns(q=urn:x)xpointer(//q:item)", over: node)
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#expect(result.count == 1)
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}
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@Test("XPointer falls through schemes until one selects")
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func test_schemeFallback() throws {
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let node = try PureXML.parse("<root><item/></root>")
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// The first xpointer selects nothing; the second selects the item.
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let result = try PureXML.XPointer.evaluate("xpointer(//missing)xpointer(//item)", over: node)
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#expect(result.count == 1)
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}
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}
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