Update

Author: odow

src/Bridges/Constraint/bridges/RSOCtoSOCBridge.jl

@@ -59,13 +59,8 @@ end
 
 function MOI.Bridges.map_function(::Type{<:RSOCtoSOCBridge{T}}, func) where {T}
     scalars = MOI.Utilities.eachscalar(func)
-    if length(scalars) < 2
-        err = DimensionMismatch(
-            "Unable to reformulate a `RotatedSecondOrderCone` into a " *
-            "`SecondOrderCone` because the output dimension is too small",
-        )
-        throw(err)
-    end
+    # We cannot construct MOI.RotatedSecondOrderCone(1)
+    @assert length(scalars) >= 2
     t, u, x = scalars[1], scalars[2], scalars[3:end]
     ts = MOI.Utilities.operate!(/, T, t, sqrt(T(2)))
     us = MOI.Utilities.operate!(/, T, u, sqrt(T(2)))

src/Bridges/Constraint/bridges/SOCtoPSDBridge.jl

@@ -256,13 +256,9 @@ end
 
 function MOI.Bridges.map_function(::Type{<:RSOCtoPSDBridge{T}}, func) where {T}
     scalars = MOI.Utilities.eachscalar(func)
-    if length(scalars) < 2
-        err = DimensionMismatch(
-            "Unable to bridge RotatedSecondOrderCone to PSD because the ",
-            "dimension is too small: got $(length(scalars)), expected >= 2.",
-        )
-        throw(err)
-    elseif length(scalars) == 2
+    # We cannot construct MOI.RotatedSecondOrderCone(1)
+    @assert length(scalars) >= 2
+    if length(scalars) == 2
         return func
     end
     # Input is (t, u, x), and we need [t x'; x 2uI]

test/Bridges/Constraint/ScalarSlackBridge.jl

@@ -422,7 +422,9 @@ function test_basis_status()
     MOI.set.(inner, MOI.VariableBasisStatus(), y, MOI.BASIC)
     @test MOI.get(model, MOI.ConstraintBasisStatus(), c) == MOI.BASIC
     d = MOI.add_constraint(model, 1.0 * x, MOI.Interval(1.0, 2.0))
-    @test MOI.get(model, MOI.ConstraintBasisStatus(), c) == MOI.BASIC
+    z = last(MOI.get(inner, MOI.ListOfVariableIndices()))
+    MOI.set(inner, MOI.VariableBasisStatus(), z, MOI.SUPER_BASIC)
+    @test MOI.get(model, MOI.ConstraintBasisStatus(), d) == MOI.SUPER_BASIC
     return
 end