34 lines
1.2 KiB
Julia
34 lines
1.2 KiB
Julia
@testset "Propagator" begin
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# Set up
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start = oe_to_xyz([ (μs["Earth"]*(rand(3600*1.5:0.01:3600*4)/(2π))^2)^(1/3),
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rand(0.01:0.01:0.5),
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rand(0.01:0.01:0.45π),
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0.,
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0.,
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1. ], μs["Earth"])
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stepsize = rand(100.0:0.01:500.0)
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# Test that Laguerre-Conway is the default propagator
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propped = prop_one([0., 0., 0.], start, 0., 0, 0., 1000., 0.1, μs["Earth"], stepsize)
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@test laguerre_conway(start, μs["Earth"], stepsize) ≈ propped[1]
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# Test that Laguerre-Conway is the default propagator for spacecrafts
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craft = Sc("no_thrust")
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state, craft = prop_one([0., 0., 0.], start, craft, μs["Earth"], stepsize)
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@test laguerre_conway(start, μs["Earth"], stepsize) ≈ state
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@test craft.mass == 1000.
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# Test that mass is reduced properly
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craft = Sc("test")
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start_mass = craft.mass
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state, craft = prop_one([1., 1., 1.]/√(3), start, craft, μs["Earth"], stepsize)
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@test craft.mass == start_mass - craft.mass_flow_rate*stepsize
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# Test that a bad ΔV throws an error
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craft = Sc("test")
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start_mass = craft.mass
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@test_throws ErrorException prop_one([1., 1., -1.], start, craft, μs["Earth"], stepsize)
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end
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