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add tests for https://github.com/SciML/OrdinaryDiffEq.jl/pull/2743 #2744

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add tests for https://github.com/SciML/OrdinaryDiffEq.jl/pull/2743 #2744

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17 changes: 17 additions & 0 deletions test/integrators/ode_event_tests.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -429,3 +429,20 @@ step!(integrator, 1e-5, true)
solve(prob, LinearExponential(), dt = t_l[2] - t_l[1], callback = cb)
@test length(saved_values.saveval) == length(t_l)
end

# https://github.com/SciML/DifferentialEquations.jl/issues/1092
@testset "set_u! on first timestep" begin
prob = ODEProblem((du, u, p, t) -> (du .= [u[2], 0]), [4.0,-1.0], (0.0,1.0))
integ = init(prob, Euler(); dt=0.002, adaptive=false, save_everystep=false)
set_u!(integ, [4.0, 2.0])
@test integ.u == [4,2]
step!(integ)
@test integ.u == [4.004, 2]
# check that set_u! also works after a step
integ = init(prob, Euler(); dt=0.002, adaptive=false, save_everystep=false)
step!(integ)
set_u!(integ, [4.0, 2.0])
@test integ.u == [4,2]
step!(integ)
@test integ.u == [4.004, 2]
end
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