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apple/PhysarumApp/Tests/SpeciesSelectorTests.swift

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#if !os(tvOS)
import XCTest
@testable import Physarum

final class SpeciesSelectorTests: XCTestCase {
    func testNilIsAllAndBroadcasts() {
        XCTAssertTrue(speciesIsBroadcast(nil))
        XCTAssertEqual(speciesFocus(nil), 0)   // All displays species 0
    }
    func testConcreteSelectionFocusesAndDoesNotBroadcast() {
        XCTAssertFalse(speciesIsBroadcast(1))
        XCTAssertEqual(speciesFocus(2), 2)
    }
    func testChannelLabel() {
        XCTAssertEqual(speciesChannelLabel(0), "R")
        XCTAssertEqual(speciesChannelLabel(1), "G")
        XCTAssertEqual(speciesChannelLabel(2), "B")
    }
}
#endif