Add tests

Author: blegat

src/Bridges/Constraint/bridges/HermitianToComplexSymmetricBridge.jl

@@ -43,10 +43,16 @@ end
 # Should be favored over `HermitianToSymmetricPSDBridge`
 MOI.Bridges.bridging_cost(::Type{<:HermitianToComplexSymmetricBridge}) = 0.5
 
-function _promote_complex_vcat(::Type{T}, ::Type{G}) where {T,G}
+function _promote_complex_vcat(::Type{T}, ::Type{G}) where {T<:Real,G}
     S = MOI.Utilities.scalar_type(G)
-    M = MOI.Utilities.promote_operation(*, Complex{T}, S)
-    return MOI.Utilities.promote_operation(vcat, T, M)
+    if S === T
+        M = Complex{T}
+    elseif S <: MOI.Utilities.TypedLike{T}
+        M = MOI.Utilities.similar_type(S, Complex{T})
+    else
+        M = MOI.Utilities.promote_operation(*, Complex{T}, Complex{T}, S)
+    end
+    return MOI.Utilities.promote_operation(vcat, Complex{T}, M)
 end
 
 function concrete_bridge_type(
@@ -97,7 +103,7 @@ function MOI.Bridges.map_function(
             else
                 imag_index += 1
                 real_scalars[real_index] =
-                    complex_scalars[real_index] +
+                    one(Complex{T}) * complex_scalars[real_index] +
                     (one(T) * im) * complex_scalars[imag_index]
             end
         end

test/Bridges/Constraint/HermitianToComplexSymmetricBridge.jl

@@ -0,0 +1,49 @@
+# Copyright (c) 2017: Miles Lubin and contributors
+# Copyright (c) 2017: Google Inc.
+#
+# Use of this source code is governed by an MIT-style license that can be found
+# in the LICENSE.md file or at https://opensource.org/licenses/MIT.
+
+module TestConstraintHermitianToComplexSymmetric
+
+using Test
+
+import MathOptInterface as MOI
+
+function runtests()
+    for name in names(@__MODULE__; all = true)
+        if startswith("$(name)", "test_")
+            @testset "$(name)" begin
+                getfield(@__MODULE__, name)()
+            end
+        end
+    end
+    return
+end
+
+function test_dimension_2()
+    MOI.Bridges.runtests(
+        MOI.Bridges.Constraint.HermitianToComplexSymmetricBridge,
+        model -> begin
+            a, b, c = MOI.add_variables(model, 3)
+            MOI.add_constraint(
+                model,
+                MOI.Utilities.vectorize([1.0 * a + 2.0 * b, 3.0 * c, 4.0 * b, 5.0 * a]),
+                MOI.HermitianPositiveSemidefiniteConeTriangle(2),
+            )
+        end,
+        model -> begin
+            a, b, c = MOI.add_variables(model, 3)
+            MOI.add_constraint(
+                model,
+                MOI.Utilities.vectorize([Complex(1.0) * a + Complex(2.0) * b, Complex(3.0) * c + 5.0 * im * a, Complex(4.0) * b]),
+                MOI.PositiveSemidefiniteConeTriangle(2),
+            )
+        end,
+    )
+    return
+end
+
+end  # module
+
+TestConstraintHermitianToComplexSymmetric.runtests()