Description

@Test(
     ...
    arguments: [Int.random(in: Int.min ... -2), -1, 12, Int.random(in: 13 ... Int.max)],
)

The above test arguments produces this: [-1, 12] instead of [random, -1, 12, random]

Reproduction

@Test(
    "Unsupported File Value",
    arguments: [Int.random(in: Int.min ... -2), -1, 12, Int.random(in: 13 ... Int.max)],
)
func unsupportedFileValue(file: Int) async throws
{
    let sut = Coordinate2D(file, 1)
    #expect(sut.notation == "_1", "Unsupported File, any value not in 0...10, is Represented by '_'")
}

The above code will call the test function 2 times instead of 4, with only the Int literal values [-1, 12], ignoring the Int.random(in:) results.

Expected behavior

@Test(
     ...
    arguments: [Int.random(in: Int.min ... -2), -1, 12, Int.random(in: 13 ... Int.max)],
)

The above test arguments produces this: [-1, 12] instead of [random, -1, 12, random].

I would expect [randomInt, -1, 12, randomInt] e.x [-101, -1, 12, 2345].

Environment

Swift Testing
Testing Library Version: 124.4
Target Platform: arm64e-apple-macos14.0

swift-driver version: 1.120.5 Apple Swift version 6.1.2 (swiftlang-6.1.2.1.2 clang-1700.0.13.5)
Target: arm64-apple-macosx15.0

Darwin Kernel Version 24.5.0: Tue Apr 22 19:54:49 PDT 2025

Xcode
Version 26.0 beta 3 (17A5276g)

Additional information

That behaviour is strange to me as the following code behave correctly:

@Test(
    "Test",
    arguments: [UUID().uuidString, UUID().uuidString]
)
func test(_ rank: String) async throws
{
    print(rank)
}

And this also behave correctly

@Test(
    "All Valid File, 'a' to 'l'",
    arguments: zip(
        Array(0 ... 11),
        ["a", "b", "c", "d", "e", "f", "g", "h", "i", "j", "k", "l"],
    ),
)