Fix Indicator constraints in ListOfConstraintTypesPresent (#629)

Author: odow

src/MOI_wrapper/MOI_wrapper.jl

@@ -3641,6 +3641,12 @@ function MOI.get(model::Optimizer, ::MOI.ListOfConstraintTypesPresent)
     for info in values(model.nl_constraint_info)
         push!(constraints, (MOI.ScalarNonlinearFunction, typeof(info.set)))
     end
+    for info in values(model.indicator_constraint_info)
+        push!(
+            constraints,
+            (MOI.VectorAffineFunction{Float64}, typeof(info.set)),
+        )
+    end
     return collect(constraints)
 end
 

test/MOI/MOI_wrapper.jl

@@ -963,6 +963,9 @@ function test_delete_indicator()
             MOI.Indicator{MOI.ACTIVATE_ON_ONE}(MOI.EqualTo(1.0 * i)),
         )
     end
+    F = MOI.VectorAffineFunction{Float64}
+    S = MOI.Indicator{MOI.ACTIVATE_ON_ONE,MOI.EqualTo{Float64}}
+    @test (F, S) in MOI.get(model, MOI.ListOfConstraintTypesPresent())
     f = MOI.get(model, MOI.ConstraintFunction(), c[2])
     MOI.delete(model, c[1])
     MOI.delete(model, c[3])