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).
97 lines
3.4 KiB
Swift
97 lines
3.4 KiB
Swift
import Testing
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@testable import PureXML
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@Suite("XPath functions")
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struct XPathFunctionTests {
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private func doc() throws -> PureXML.Model.Node {
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try PureXML.parse(
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"<doc xml:lang=\"en\">"
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+ "<item id=\"a\"> hello world </item>"
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+ "<item id=\"b\">12</item>"
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+ "<item id=\"c\">8</item>"
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+ "<ns:tag xmlns:ns=\"urn:x\">x</ns:tag>"
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+ "</doc>",
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)
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}
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private func string(_ path: String) throws -> String {
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try PureXML.XPath.Query(path).string(over: doc())
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}
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private func number(_ path: String) throws -> Double {
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try PureXML.XPath.Query(path).number(over: doc())
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}
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private func boolean(_ path: String) throws -> Bool {
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try PureXML.XPath.Query(path).boolean(over: doc())
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}
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// MARK: String functions
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@Test("concat, starts-with, contains")
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func test_stringPredicates() throws {
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#expect(try string("concat('a', 'b', 'c')") == "abc")
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#expect(try boolean("starts-with('hello', 'he')"))
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#expect(try boolean("contains('hello', 'ell')"))
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#expect(try !boolean("contains('hello', 'z')"))
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}
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@Test("substring-before and substring-after")
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func test_substringAround() throws {
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#expect(try string("substring-before('1999/04', '/')") == "1999")
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#expect(try string("substring-after('1999/04', '/')") == "04")
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}
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@Test("substring honors one-based positions and length")
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func test_substring() throws {
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#expect(try string("substring('hello', 2)") == "ello")
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#expect(try string("substring('hello', 2, 3)") == "ell")
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#expect(try string("substring('hello', 0, 3)") == "he")
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}
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@Test("string-length and normalize-space")
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func test_lengthAndNormalize() throws {
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#expect(try number("string-length('hello')") == 5)
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#expect(try string("normalize-space(//item[@id='a'])") == "hello world")
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}
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@Test("translate maps and deletes characters")
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func test_translate() throws {
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#expect(try string("translate('bar', 'abc', 'ABC')") == "BAr")
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#expect(try string("translate('--aaa--', 'abc-', 'ABC')") == "AAA")
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}
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// MARK: Number functions
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@Test("sum, floor, ceiling, round")
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func test_numberFunctions() throws {
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#expect(try number("sum(//item[@id='b' or @id='c'])") == 20)
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#expect(try number("floor(2.7)") == 2)
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#expect(try number("ceiling(2.1)") == 3)
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#expect(try number("round(2.5)") == 3)
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#expect(try number("round(-2.5)") == -2)
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}
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// MARK: Node functions
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@Test("local-name, name, namespace-uri")
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func test_nodeNaming() throws {
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#expect(try string("local-name(//ns:tag)") == "tag")
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#expect(try string("name(//ns:tag)") == "ns:tag")
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#expect(try string("namespace-uri(//ns:tag)") == "urn:x")
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}
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@Test("id selects elements by their id attribute")
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func test_id() throws {
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#expect(try PureXML.XPath.Query("id('b')").strings(over: doc()) == ["12"])
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#expect(try PureXML.XPath.Query("id('a c')").evaluate(over: doc()).count == 2)
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}
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@Test("lang tests the inherited xml:lang")
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func test_lang() throws {
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// lang() reads the context node, so it is exercised inside a predicate.
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#expect(try PureXML.XPath.Query("//item[lang('en')]").evaluate(over: doc()).count == 3)
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#expect(try PureXML.XPath.Query("//item[lang('fr')]").evaluate(over: doc()).isEmpty)
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}
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}
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