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package test.com.sun.scenario.animation;


import com.sun.scenario.animation.NumberTangentInterpolator;
import javafx.animation.Interpolator;
import static org.junit.Assert.*;
import static javafx.util.Duration.*;

import org.junit.Before;
import org.junit.Test;

public class NumberTangentInterpolatorTest {
	
	private static final double EPSILON_DOUBLE = 1e-12;
	private static final double EPSILON_FLOAT = 1e-6;

	private NumberTangentInterpolator interpolator;
	
	@Before
	public void setUp() throws Exception {
		interpolator = new NumberTangentInterpolator(ZERO, 0);
	}
	
	@Test
	public void testCreate() {
		final NumberTangentInterpolator interpolator1 = new NumberTangentInterpolator(millis(2000), Math.PI);
		assertEquals(Math.PI, interpolator1.getInValue(), EPSILON_DOUBLE);
		assertEquals(12000.0, interpolator1.getInTicks(), EPSILON_DOUBLE);
		assertEquals(Math.PI, interpolator1.getOutValue(), EPSILON_DOUBLE);
		assertEquals(12000.0, interpolator1.getOutTicks(), EPSILON_DOUBLE);

		final NumberTangentInterpolator interpolator2 = new NumberTangentInterpolator(millis(500), Math.E, millis(1000), -Math.PI);
		assertEquals(Math.E, interpolator2.getInValue(), EPSILON_DOUBLE);
		assertEquals(3000.0, interpolator2.getInTicks(), EPSILON_DOUBLE);
		assertEquals(-Math.PI, interpolator2.getOutValue(), EPSILON_DOUBLE);
		assertEquals(6000.0, interpolator2.getOutTicks(), EPSILON_DOUBLE);
	}
	
	@Test
	public void testInterpolate_boolean() {
		assertEquals(false, interpolator.interpolate(false, true, 0.0));
		assertEquals(false, interpolator.interpolate(false, true, 0.5));
		assertEquals(true, interpolator.interpolate(false, true, 1.0));
	}

	@Test
	public void testInterpolate_double() {
		assertEquals( 0.0, interpolator.interpolate(0.0, 10.0, 0.0), EPSILON_DOUBLE);
		assertEquals( 5.0, interpolator.interpolate(0.0, 10.0, 0.5), EPSILON_DOUBLE);
		assertEquals(10.0, interpolator.interpolate(0.0, 10.0, 1.0), EPSILON_DOUBLE);
	}

	@Test
	public void testInterpolate_int() {
		assertEquals( 0, interpolator.interpolate(0, 10, 0.0));
		assertEquals( 5, interpolator.interpolate(0, 10, 0.5));
		assertEquals(10, interpolator.interpolate(0, 10, 1.0));
	}

	@Test
	public void testInterpolate_long() {
		assertEquals( 0L, interpolator.interpolate(0L, 10L, 0.0));
		assertEquals( 5L, interpolator.interpolate(0L, 10L, 0.5));
		assertEquals(10L, interpolator.interpolate(0L, 10L, 1.0));
	}

	@Test
	public void testInterpolate_float() {
		assertEquals( 0.0f, interpolator.interpolate(0.0f, 10.0f, 0.0), EPSILON_FLOAT);
		assertEquals( 5.0f, interpolator.interpolate(0.0f, 10.0f, 0.5), EPSILON_FLOAT);
		assertEquals(10.0f, interpolator.interpolate(0.0f, 10.0f, 1.0), EPSILON_FLOAT);
	}

	@Test
	public void testInterpolate_Object() {
		assertEquals("Hello World", interpolator.interpolate("Hello World", "Goodbye World", 0.0));
		assertEquals("Hello World", interpolator.interpolate("Hello World", "Goodbye World", 0.5));
		assertEquals("Goodbye World", interpolator.interpolate("Hello World", "Goodbye World", 1.0));
	}

	@Test
	public void testInterpolate_Number() {
		assertEquals(Integer.valueOf( 0), interpolator.interpolate(Integer.valueOf(0), Integer.valueOf(10), 0.0));
		assertEquals(Integer.valueOf( 5), interpolator.interpolate(Integer.valueOf(0), Integer.valueOf(10), 0.5));
		assertEquals(Integer.valueOf(10), interpolator.interpolate(Integer.valueOf(0), Integer.valueOf(10), 1.0));
	}

        private static void testEqualsAndHashCode(Interpolator one, Interpolator another) {
                assertTrue(one.equals(another));
                assertTrue(another.equals(one));
                assertEquals(one.hashCode(), another.hashCode());
        }

        private static void testNotEqualsAndHashCode(Interpolator one, Interpolator another) {
                assertFalse(one.equals(another));
                assertFalse(another.equals(one));
                assertFalse(one.hashCode() == another.hashCode());
        }

        @Test public void testEqualsAndHashCodeShort() {
                testEqualsAndHashCode(interpolator, new NumberTangentInterpolator(ZERO, 0));
        }

        @Test public void testNotEqualsAndHashCodeShort() {
                testNotEqualsAndHashCode(interpolator, new NumberTangentInterpolator(millis(500), 0));
                testNotEqualsAndHashCode(interpolator, new NumberTangentInterpolator(ZERO, 1));
        }

        @Test public void testEqualsAndHashCode() {
                Interpolator one = new NumberTangentInterpolator(millis(500), Math.E, millis(1000), -Math.PI);
                Interpolator another = new NumberTangentInterpolator(millis(500), Math.E, millis(1000), -Math.PI);
                testEqualsAndHashCode(one, another);
        }

        @Test public void testNotEqualsAndHashCode() {
                Interpolator one = new NumberTangentInterpolator(millis(500), Math.E, millis(1000), -Math.PI);
                Interpolator another = new NumberTangentInterpolator(millis(500), Math.E, millis(1000), Math.PI);
                testNotEqualsAndHashCode(one, another);

                another = new NumberTangentInterpolator(millis(500), Math.E, millis(800), -Math.PI);
                testNotEqualsAndHashCode(one, another);

                another = new NumberTangentInterpolator(millis(500), Math.PI, millis(1000), -Math.PI);
                testNotEqualsAndHashCode(one, another);

                another = new NumberTangentInterpolator(millis(100), Math.E, millis(1000), -Math.PI);
                testNotEqualsAndHashCode(one, another);
        }

        @Test public void testEqualsAndHashCodeFullToShort() {
                NumberTangentInterpolator sh = new NumberTangentInterpolator(millis(200), 105);
                NumberTangentInterpolator full = new NumberTangentInterpolator(millis(200), 105, millis(200), 105);
                testEqualsAndHashCode(sh, full);
        }
        
        @Test public void testNotEqualsAndHashCodeFullToShort() {
                NumberTangentInterpolator sh = new NumberTangentInterpolator(millis(200), 105);
                Interpolator full = new NumberTangentInterpolator(millis(500), 105, millis(500), 105);
                testNotEqualsAndHashCode(sh, full);

                full = new NumberTangentInterpolator(millis(200), 115, millis(200), 115);
                testNotEqualsAndHashCode(sh, full);

                full = new NumberTangentInterpolator(millis(200), 105, millis(200), 100);
                testNotEqualsAndHashCode(sh, full);

                full = new NumberTangentInterpolator(millis(200), 105, millis(205), 105);
                testNotEqualsAndHashCode(sh, full);

                full = new NumberTangentInterpolator(millis(200), 106, millis(200), 105);
                testNotEqualsAndHashCode(sh, full);

                full = new NumberTangentInterpolator(millis(210), 105, millis(200), 105);
                testNotEqualsAndHashCode(sh, full);
        }
}