testutils: improve loadGenericSensorTest

loadGenericSensorTest is a helper function to load a generic sensor.
With the addition of the tg_mbset_map in the previous commits, when
using a matchBinaries with followChildren: true because for the latter,
we need to base sensor to be loaded.

This fixes the above issue by initializing the base (exec) sensor
before running SensorsFromPolicy.

Signed-off-by: Kornilios Kourtis <kornilios@isovalent.com>

pkg/sensors/tracing/selectors_test.go

@@ -46,6 +46,10 @@ func loadGenericSensorTest(t *testing.T, spec *v1alpha1.TracingPolicySpec) *sens
 		Metadata: v1.ObjectMeta{Name: "name"},
 		Spec:     *spec,
 	}
+
+	tus.LoadSensor(t, base.GetInitialSensor())
+	tus.LoadSensor(t, testsensor.GetTestSensor())
+
 	ret, err := sensors.SensorsFromPolicy(tp, policyfilter.NoFilterID)
 	if err != nil {
 		t.Fatalf("GetSensorsFromParserPolicy failed: %v", err)
@@ -54,8 +58,6 @@ func loadGenericSensorTest(t *testing.T, spec *v1alpha1.TracingPolicySpec) *sens
 	}
 	tpSensor := ret[0]
 	option.Config.HubbleLib = tus.Conf().TetragonLib
-	tus.LoadSensor(t, base.GetInitialSensor())
-	tus.LoadSensor(t, testsensor.GetTestSensor())
 	tus.LoadSensor(t, tpSensor)
 	return tpSensor.(*sensors.Sensor)
 }