something for testing rules

[querdenker2k]

This is how i started testing my rules. I need the already done changes in this MR. There are 3 more classes behind JRuleTestBase in my JRule rules project.
Is this something somebody else could use?
Currently there is a test option inside JRule (org.openhab.automation.jrule.internal.test) but i am not using this, it's too 'simple'. Is somebody else using this? Could this be removed.
If somebody could use this doing here as well i would put this in a separate maven project here (to have a multimodule project)

What can be done with this?

• it reads all items from JRuleItemNames (with the extra annotation, see MR)
• it can set states for an item
• it just uses JRule items and values on the using facade.
• it can fire updates (like change/command/update...)
• it can assert states of an item
• it can invoke timers directly to not wait until your timer is invoked (test execution would be very long otherwise)
• it can do of course some Mockito stuff like assert rule execution.

What do you think? @seime @seaside1

package org.openhab.automation.jrule.rules.user.light;

import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.TestInstance;
import org.junit.jupiter.api.extension.ExtendWith;
import org.mockito.Mockito;
import org.mockito.Spy;
import org.mockito.junit.jupiter.MockitoExtension;
import org.openhab.automation.jrule.generated.items.JRuleItemNames;
import org.openhab.automation.jrule.rules.user.jrule.JRuleTestBase;
import org.openhab.automation.jrule.rules.value.JRuleDecimalValue;
import org.openhab.automation.jrule.rules.value.JRuleOnOffValue;
import org.openhab.automation.jrule.rules.value.JRulePercentValue;

@TestInstance(TestInstance.Lifecycle.PER_CLASS)
@ExtendWith(MockitoExtension.class)
class LightSceneTest extends JRuleTestBase {
    @Spy
    LightScene lightScene;
    @Spy
    Light light;

    @Test
    void lightSceneDiningroomOff() {
        // preconditions
        setState(JRuleItemNames.Light_Diningroom, new JRulePercentValue(70));

        fireChange(JRuleItemNames.Scene_Light_Diningroom, new JRuleDecimalValue(LightScene.LIGHT_SCENE_NONE));
        Mockito.verify(lightScene, Mockito.times(1)).lightSceneDiningroom();
        assertState(JRuleItemNames.Light_Automatic_Diningroom, JRuleOnOffValue.ON);
    }

    @Test
    void lightSceneDiningroom() {
        // preconditions
        setState(JRuleItemNames.Light_Diningroom, new JRulePercentValue(70));
        setState(JRuleItemNames.Light_Automatic_Diningroom, JRuleOnOffValue.ON);

        // set a scene
        fireChange(JRuleItemNames.Scene_Light_Diningroom, new JRuleDecimalValue(LightScene.LIGHT_SCENE_DINGINGROOM_PLAYING));
        Mockito.verify(lightScene, Mockito.times(1)).lightSceneDiningroom();
        assertState(JRuleItemNames.Light_Proxy_Diningroom, new JRulePercentValue(79));
        assertState(JRuleItemNames.Light_Temperature_Diningroom, new JRulePercentValue(66));

        // no presence anymore -> reset scene
        fireChange(JRuleItemNames.Presence_Virtual_Diningroom, JRuleOnOffValue.OFF);
        Mockito.verify(light, Mockito.times(1)).lightAutomatic(Mockito.any());
        assertState(JRuleItemNames.Light_Diningroom, new JRulePercentValue(35));

        // trigger the timer (can't wait until it's fired by jRule)
        getTimers("light-automatic-Diningroom").get(0).invoke();
        assertState(JRuleItemNames.Light_Diningroom, new JRulePercentValue(0));
    }
}