Mihaela M
934c9eafa3
Fill the highest-value coverage gaps found in the Codable bridge and parser: the full integer-width decode ladder and per-width out-of-range errors, Float round-trip, NaN equality and hash consistency (the bespoke nan == nan invariant), unkeyed decodeNil false-branch and nested-index mismatch, and the previously untested expectedNode, unterminated flow mapping, explicit block-scalar under-indent, and buffered invalid-merge error paths.
45 lines
1.6 KiB
Swift
45 lines
1.6 KiB
Swift
@testable import PureYAML
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import Testing
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@Suite("Value Hashing")
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struct ValueHashableTests {
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typealias Value = PureYAML.Model.Value
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@Test("NaN double values compare equal to themselves")
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func test_doubleNaNValuesAreEqual() {
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#expect(Value.double(.nan) == Value.double(.nan))
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#expect(Value.double(.nan) != Value.double(1.0))
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#expect(Value.double(1.0) == Value.double(1.0))
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}
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@Test("Value hashing is consistent with equality, including NaN")
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func test_valueHashingIsConsistentWithEqualityIncludingNaN() {
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// Two equal NaN values must collapse to one Set element, which only
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// holds if hash(into:) agrees with the custom == for NaN.
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let set: Set<Value> = [.double(.nan), .double(.nan)]
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#expect(set.count == 1)
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// Distinct values stay distinct as dictionary keys.
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let table: [Value: Int] = [
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.double(.nan): 1,
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.int(1): 2,
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.string("1"): 3,
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.bool(true): 4,
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.null: 5,
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]
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#expect(table.count == 5)
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#expect(table[.double(.nan)] == 1)
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#expect(table[.int(1)] == 2)
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}
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@Test("Equal values across cases hash and compare distinctly")
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func test_distinctCasesAreNotEqual() {
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#expect(Value.int(1) != Value.string("1"))
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#expect(Value.int(1) != Value.double(1.0))
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#expect(Value.bool(true) != Value.int(1))
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#expect(Value.null != Value.string("null"))
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let set: Set<Value> = [.int(1), .string("1"), .double(1.0), .bool(true), .null]
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#expect(set.count == 5)
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}
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}
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