@testset "Utils" begin
    s = @inferred(LightGraphs.sample!([1:10;], 3))
    @test length(s) == 3
    for  e in s
        @test 1 <= e <= 10
    end

    s = @inferred(LightGraphs.sample!([1:10;], 6, exclude=[1,2]))
    @test length(s) == 6
    for e in s
        @test 3 <= e <= 10
    end

    s = @inferred(LightGraphs.sample(1:10, 6, exclude=[1,2]))
    @test length(s) == 6
    for e in s
        @test 3 <= e <= 10
    end
end
