Fix tests

Author: efaulhaber

test/examples/examples_fluid.jl

@@ -273,7 +273,8 @@
                                          joinpath(examples_dir(), "fluid",
                                                   "periodic_channel_2d.jl"),
                                          tspan=(0.0, 0.2),
-                                         shifting_technique=ParticleShiftingTechnique())
+                                         shifting_technique=ParticleShiftingTechnique(),
+                                         extra_callback=UpdateCallback())
         @test sol.retcode == ReturnCode.Success
         @test count_rhs_allocations(sol, semi) == 0
     end
@@ -283,7 +284,8 @@
                                          joinpath(examples_dir(), "fluid",
                                                   "periodic_channel_2d.jl"),
                                          tspan=(0.0, 0.2),
-                                         shifting_technique=TransportVelocityAdami(50_000.0))
+                                         shifting_technique=TransportVelocityAdami(50_000.0),
+                                         extra_callback=UpdateCallback())
         @test sol.retcode == ReturnCode.Success
         @test count_rhs_allocations(sol, semi) == 0
     end
@@ -294,7 +296,8 @@
                                                   "periodic_channel_2d.jl"),
                                          tspan=(0.0, 0.2),
                                          shifting_technique=ParticleShiftingTechnique(),
-                                         pressure_acceleration=tensile_instability_control)
+                                         pressure_acceleration=tensile_instability_control,
+                                         extra_callback=UpdateCallback())
         @test sol.retcode == ReturnCode.Success
         @test count_rhs_allocations(sol, semi) == 0
     end