package com.evsuite.abrp;

import static org.junit.Assert.assertEquals;

import org.junit.Test;

public class TallyTest {

    @Test
    public void anUnreadValueLightsNothing() {
        assertEquals(0, Tally.lit(null, 10f, 10));
        assertEquals(0, Tally.lit(Float.NaN, 10f, 10));
        assertEquals(0, Tally.ofPower(null, 150f, 50f, 24));
        assertEquals(0, Tally.ofPower(Float.NaN, 150f, 50f, 24));
    }

    @Test
    public void oneThingPerStepUpToTheRow() {
        assertEquals(8, Tally.lit(76f, 10f, 10));
        assertEquals(10, Tally.lit(100f, 10f, 10));
        assertEquals(8, Tally.lit(900f, 50f, 8));
        assertEquals(6, Tally.lit(312f, 50f, 8));
        assertEquals(0, Tally.lit(0f, 10f, 10));
        assertEquals(0, Tally.lit(-5f, 10f, 10));
    }

    @Test
    public void powerFillsTheGaugeEachWay() {
        assertEquals(0, Tally.ofPower(0f, 150f, 50f, 24));
        assertEquals(24, Tally.ofPower(150f, 150f, 50f, 24));
        assertEquals(24, Tally.ofPower(400f, 150f, 50f, 24));
        assertEquals(12, Tally.ofPower(-25f, 150f, 50f, 24));
        assertEquals(24, Tally.ofPower(-50f, 150f, 50f, 24));
    }

    @Test
    public void realPowerAlwaysShows() {
        assertEquals(1, Tally.ofPower(0.5f, 150f, 50f, 24));
        assertEquals(1, Tally.ofPower(-0.2f, 150f, 50f, 24));
    }
}