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Improve coverage of C_wrapper.jl #441

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Nov 24, 2024
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Improve coverage of C_wrapper.jl #441

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100 changes: 100 additions & 0 deletions test/C_wrapper.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -238,6 +238,106 @@ function test_hs071()
return
end

function test_IpoptProblem_errors()
@test_throws(
ErrorException(
"IPOPT: Failed to construct problem because there are 0 variables. If you intended to construct an empty problem, one work-around is to add a variable fixed to 0.",
),
Ipopt.CreateIpoptProblem(
0, # n,
Float64[], # x_L,
Float64[], # x_U,
0, # m,
Float64[], # g_L,
Float64[], # g_U,
0, # nele_jac,
0, # nele_hess
x -> 0.0, # eval_f,
(x, g) -> nothing, # eval_g,
(x, g) -> nothing, # eval_grad_f,
(args...) -> nothing, # eval_jac_g,
nothing,
),
)
@test_throws(
ErrorException(
"IPOPT: Failed to construct problem for some unknown reason.",
),
Ipopt.CreateIpoptProblem(
1, # n,
Float64[0.0], # x_L,
Float64[1.0], # x_U,
0, # m,
Float64[], # g_L,
Float64[], # g_U,
-1, # nele_jac,
0, # nele_hess
x -> 0.0, # eval_f,
(x, g) -> nothing, # eval_g,
(x, g) -> nothing, # eval_grad_f,
(args...) -> nothing, # eval_jac_g,
nothing,
),
)
return
end

function test_non_ascii_options()
prob = Ipopt.CreateIpoptProblem(
1, # n,
[0.0], # x_L,
[1.0], # x_U,
0, # m,
Float64[], # g_L,
Float64[], # g_U,
0, # nele_jac,
0, # nele_hess
x -> x[1], # eval_f,
(x, g) -> nothing, # eval_g,
(x, g) -> (g[1] = 1.0), # eval_grad_f,
(args...) -> nothing, # eval_jac_g,
nothing,
)
@test_throws(
ErrorException("IPOPT: Non ASCII parameters not supported"),
Ipopt.AddIpoptStrOption(prob, "ρ", "false"),
)
@test_throws(
ErrorException("IPOPT: Non ASCII parameters not supported"),
Ipopt.AddIpoptNumOption(prob, "ρ", 1.0),
)
@test_throws(
ErrorException("IPOPT: Non ASCII parameters not supported"),
Ipopt.AddIpoptIntOption(prob, "ρ", 1),
)
@test_throws(
ErrorException("IPOPT: Non ASCII parameters not supported"),
Ipopt.OpenIpoptOutputFile(prob, "ρ.txt", 1),
)
return
end

function test_SetIpoptProblemScaling()
prob = Ipopt.CreateIpoptProblem(
1, # n,
[0.0], # x_L,
[1.0], # x_U,
0, # m,
Float64[], # g_L,
Float64[], # g_U,
0, # nele_jac,
0, # nele_hess
x -> x[1], # eval_f,
(x, g) -> nothing, # eval_g,
(x, g) -> (g[1] = 1.0), # eval_grad_f,
(args...) -> nothing, # eval_jac_g,
nothing,
)
Ipopt.SetIpoptProblemScaling(prob, 1.0, [0.1], C_NULL)
# I don't know how to test this, or to trigger the error.
return
end

end # TestCWrapper

runtests(TestCWrapper)
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