ComputedAttributesTest.java

package org.traccar.processing;

import java.util.Date;

import org.junit.Assert;
import org.junit.Test;
import org.traccar.model.Attribute;
import org.traccar.model.Position;

public class ComputedAttributesTest {
    
    @Test
    public void testComputedAttributes() {
        Position position = new Position();
        ComputedAttributesHandler computedAttributesHandler = new ComputedAttributesHandler();
        Date date = new Date();
        position.setTime(date);
        position.setSpeed(42);
        position.setValid(false);
        position.set("adc1", 128);
        position.set("booleanFlag", true);
        position.set("adc2", 100);
        position.set("bitFlag", 7);
        position.set("event", 42);
        position.set("result", "success");
        Attribute attribute = new Attribute();

        attribute.setExpression("adc1");
        Assert.assertEquals(128, computedAttributesHandler.computeAttribute(attribute, position));

        attribute.setExpression("!booleanFlag");
        Assert.assertEquals(false, computedAttributesHandler.computeAttribute(attribute, position));

        attribute.setExpression("adc2 * 2 + 50");
        Assert.assertEquals(250, computedAttributesHandler.computeAttribute(attribute, position));

        attribute.setExpression("(bitFlag & 4) != 0");
        Assert.assertEquals(true, computedAttributesHandler.computeAttribute(attribute, position));

        attribute.setExpression("if (event == 42) \"lowBattery\"");
        Assert.assertEquals("lowBattery", computedAttributesHandler.computeAttribute(attribute, position));
        
        attribute.setExpression("speed > 5 && valid");
        Assert.assertEquals(false, computedAttributesHandler.computeAttribute(attribute, position));
        
        attribute.setExpression("fixTime");
        Assert.assertEquals(date, computedAttributesHandler.computeAttribute(attribute, position));
        
        // modification tests
        attribute.setExpression("adc1 = 256");
        computedAttributesHandler.computeAttribute(attribute, position);
        Assert.assertEquals(128, position.getInteger("adc1"));
        
        attribute.setExpression("result = \"fail\"");
        computedAttributesHandler.computeAttribute(attribute, position);
        Assert.assertEquals("success", position.getString("result"));
        
        attribute.setExpression("fixTime = \"2017-10-18 10:00:01\"");
        computedAttributesHandler.computeAttribute(attribute, position);
        Assert.assertEquals(date, position.getFixTime());
        
    }

}