Migrate tests of Variable bridges

src/Test/test_linear.jl

@@ -836,7 +836,8 @@ end
         config::Config{T},
     ) where {T}
 
-Test solving a linear program with variabless containing lower and upper bounds.
+Test solving a linear program with ScalarAffineFunction-in-LessThan and
+GreaterThan constraints.
 """
 function test_linear_LessThan_and_GreaterThan(
     model::MOI.ModelLike,
@@ -852,12 +853,12 @@ function test_linear_LessThan_and_GreaterThan(
     @requires MOI.supports(model, MOI.ObjectiveSense())
     @requires MOI.supports_constraint(
         model,
-        MOI.SingleVariable,
+        MOI.ScalarAffineFunction{T},
         MOI.GreaterThan{T},
     )
     @requires MOI.supports_constraint(
         model,
-        MOI.SingleVariable,
+        MOI.ScalarAffineFunction{T},
         MOI.LessThan{T},
     )
     x = MOI.add_variable(model)
@@ -874,14 +875,10 @@ function test_linear_LessThan_and_GreaterThan(
         ),
     )
     MOI.set(model, MOI.ObjectiveSense(), MOI.MIN_SENSE)
-    c1 = MOI.add_constraint(
-        model,
-        MOI.SingleVariable(x),
-        MOI.GreaterThan(zero(T)),
-    )
-    @test c1.value == x.value
-    c2 = MOI.add_constraint(model, MOI.SingleVariable(y), MOI.LessThan(zero(T)))
-    @test c2.value == y.value
+    fx = MOI.ScalarAffineFunction([MOI.ScalarAffineTerm(one(T), x)], zero(T))
+    c1 = MOI.add_constraint(model, fx, MOI.GreaterThan(zero(T)))
+    fy = MOI.ScalarAffineFunction([MOI.ScalarAffineTerm(one(T), y)], zero(T))
+    c2 = MOI.add_constraint(model, fy, MOI.LessThan(zero(T)))
     if _supports(config, MOI.optimize!)
         @test MOI.get(model, MOI.TerminationStatus()) == MOI.OPTIMIZE_NOT_CALLED
         MOI.optimize!(model)
@@ -924,6 +921,7 @@ function test_linear_LessThan_and_GreaterThan(
         @test MOI.get(model, MOI.VariablePrimal(), y) ≈ -T(100) atol = atol rtol =
             rtol
     end
+    return
 end
 
 function setup_test(

test/Bridges/Variable/bridge.jl

@@ -1,19 +1,29 @@
+module TestVariableBridge
+
 using Test
 
 using MathOptInterface
 const MOI = MathOptInterface
-const MOIT = MathOptInterface.DeprecatedTest
-const MOIU = MathOptInterface.Utilities
-const MOIB = MathOptInterface.Bridges
 
-struct DummyVariableBridge <: MOIB.Variable.AbstractBridge end
+function runtests()
+    for name in names(@__MODULE__; all = true)
+        if startswith("$(name)", "test_")
+            @testset "$(name)" begin
+                getfield(@__MODULE__, name)()
+            end
+        end
+    end
+    return
+end
+
+struct DummyVariableBridge <: MOI.Bridges.Variable.AbstractBridge end
 
-@testset "AbstractBridge" begin
-    model = MOIU.Model{Float64}()
+function test_AbstractBridge()
+    model = MOI.Utilities.Model{Float64}()
     bridge = DummyVariableBridge()
     attr = MOI.VariablePrimalStart()
     @test !MOI.supports(model, attr, typeof(bridge))
-    i = MOIB.IndexInVector(1)
+    i = MOI.Bridges.IndexInVector(1)
     @test_throws MOI.UnsupportedAttribute(attr) MOI.set(
         model,
         attr,
@@ -31,4 +41,9 @@ struct DummyVariableBridge <: MOIB.Variable.AbstractBridge end
     err = MOI.SetAttributeNotAllowed(attr)
     @test_throws err MOI.set(model, attr, bridge, 1.0)
     @test_throws err MOI.set(model, attr, bridge, 1.0, i)
+    return
 end
+
+end  # module
+
+TestVariableBridge.runtests()