chore: more tests

Signed-off-by: Giau. Tran Minh <hello@giautm.dev>

Author: giautm

internal/wire/testdata/Subtract/foo/wire.go

@@ -40,3 +40,10 @@ func injectFooBarService(name BarName, opts *FooOptions, bar *FakeBarService) *F
 		wire.Bind(new(BarService), new(*FakeBarService)),
 	))
 }
+
+func injectNone(name BarName, foo Foo, bar *FakeBarService) *FooBar {
+	panic(wire.Build(
+		wire.Subtract(SuperSet, new(Foo), new(BarService)),
+		wire.Bind(new(BarService), new(*FakeBarService)),
+	))
+}