Fix component-is-attached-to-system check

src/base.jl

@@ -180,8 +180,24 @@ function System(
     services = nothing,
     kwargs...,
 )
+    for component in Iterators.flatten((generators, loads))
+        if get_name(component) == "init"
+            set_bus!(component, first(buses))
+        end
+    end
     _services = isnothing(services) ? [] : services
-    return System(base_power, buses, generators, loads, _services; kwargs...)
+    _branches = isnothing(branches) ? [] : branches
+    _storage = isnothing(storage) ? [] : storage
+    return System(
+        base_power,
+        buses,
+        generators,
+        loads,
+        _branches,
+        _storage,
+        _services;
+        kwargs...,
+    )
 end
 
 """Constructs a System from a file path ending with .m, .RAW, or .json
@@ -1049,11 +1065,9 @@ end
 Return true if the component is attached to the system.
 """
 function is_attached(component::T, sys::System) where {T <: Component}
-    return is_attached(T, get_name(component), sys)
-end
-
-function is_attached(::Type{T}, name, sys::System) where {T <: Component}
-    return !isnothing(get_component(T, sys, name))
+    existing_component = get_component(T, sys, get_name(component))
+    isnothing(existing_component) && return false
+    return component === existing_component
 end
 
 """

test/test_dynamic_generator.jl

@@ -612,6 +612,7 @@ end
     bus = ACBus(nothing)
     add_component!(sys, bus)
     static_injector = ThermalStandard(nothing)
+    static_injector.bus = bus
     add_component!(sys, static_injector)
     add_component!(sys, derd, static_injector)
     DERDs = collect(get_components(GenericDER, sys))
@@ -714,6 +715,7 @@ end
     bus = ACBus(nothing)
     add_component!(sys, bus)
     static_injector = ThermalStandard(nothing)
+    static_injector.bus = bus
     add_component!(sys, static_injector)
     add_component!(sys, dera, static_injector)
     DERAs = collect(get_components(AggregateDistributedGenerationA, sys))

test/test_dynamic_loads.jl

@@ -32,6 +32,7 @@
     bus = ACBus(nothing)
     add_component!(sys, bus)
     static_load = PowerLoad(nothing)
+    static_load.bus = bus
     add_component!(sys, static_load)
     add_component!(sys, im, static_load)
     IMs = collect(get_components(SingleCageInductionMachine, sys))
@@ -69,6 +70,7 @@
     bus = ACBus(nothing)
     add_component!(sys, bus)
     static_load = PowerLoad(nothing)
+    static_load.bus = bus
     add_component!(sys, static_load)
     add_component!(sys, im, static_load)
     IMs = collect(get_components(SimplifiedSingleCageInductionMachine, sys))
@@ -100,6 +102,7 @@ end
     bus = ACBus(nothing)
     add_component!(sys, bus)
     static_load = PowerLoad(nothing)
+    static_load.bus = bus
     add_component!(sys, static_load)
     add_component!(sys, al, static_load)
     ALs = collect(get_components(ActiveConstantPowerLoad, sys))
@@ -123,6 +126,7 @@ end
     bus = ACBus(nothing)
     add_component!(sys, bus)
     static_load = PowerLoad(nothing)
+    static_load.bus = bus
     add_component!(sys, static_load)
     add_component!(sys, al, static_load)
     ALs = collect(get_components(DynamicExponentialLoad, sys))

test/test_system.jl

@@ -524,3 +524,11 @@ end
     @test metadata["time_series_resolution_milliseconds"] == 3600000
     @test metadata["user_data"]["author"] == "test"
 end
+
+@testset "Test addition of service to the wrong system" begin
+    sys1 = PSB.build_system(PSITestSystems, "test_RTS_GMLC_sys")
+    sys2 = PSB.build_system(PSITestSystems, "test_RTS_GMLC_sys")
+    service1 = first(get_components(VariableReserve{ReserveDown}, sys1))
+    device2 = first(get_components(ThermalStandard, sys2))
+    @test_throws ArgumentError add_service!(device2, service1, sys2)
+end

test/test_validation.jl

@@ -125,9 +125,9 @@ end
     )
 
     #test custom range (active_power and active_power_limits)
+    nodes = nodes5()
     bad_therm_gen_act_power = thermal_generators5(nodes)
     bad_therm_gen_act_power[1].active_power = 10
-    nodes = nodes5()
     # This is an explicit check for one error message.
     @test_logs (:warn, r"Invalid range") System(
         100.0,