@testset "376.wiggle-subsequence.jl" begin
    @test wiggle_max_length([1, 2, 3, 4, 5, 6, 7, 8, 9]) == 2
    @test wiggle_max_length([1, 17, 5, 10, 13, 15, 10, 5, 16, 8]) == 7
    @test wiggle_max_length([1, 7, 4, 9, 2, 5]) == 6
    @test wiggle_max_length([0, 0]) == 1
    @test wiggle_max_length([0]) == 1
end
