import static org.junit.Assert.*;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;

/**
 * The test class MathMethodsTest.
 *
 * @author  (your name)
 * @version (a version number or a date)
 */
public class MathMethodsTest
{
    /**
     * Default constructor for test class MathMethodsTest
     */
    public MathMethodsTest()
    {
    }

    /**
     * Sets up the test fixture.
     *
     * Called before every test case method.
     */
    @Before
    public void setUp()
    {
    }

    /**
     * Tears down the test fixture.
     *
     * Called after every test case method.
     */
    @After
    public void tearDown()
    {
    }

    @Test

    public void testSquareRoot()
    {
        assertEquals(16.0, MathMethods.squareRoot(256), 0.1);
    }

    @Test
    public void testInvertPositive()
    {
        assertEquals(-5.0, MathMethods.invert(5), 0.1);
    }

    @Test
    public void testInvertNegative()
    {
        assertEquals(11.0, MathMethods.invert(-11), 0.1);
    }

    @Test
    public void testSin()
    {
        assertEquals(-0.26237485370392877, MathMethods.sin(50), 0.1);
    }

    @Test
    public void testDegToRad()
    {
        assertEquals(0.3490658503988659, MathMethods.degToRad(20), 0.1);
    }

    @Test
    public void testRadToDeg()
    {
        assertEquals(57.2957791308232, MathMethods.radToDeg(1), 0.1);
    }

    // @Test
    // public void testOctalDisplay()
    // {
    // MathMethods mathMethods1 = new MathMethods();
    // mathMethods1.memory = 20;

    // assertEquals("0 24", MathMethods.switchDisplayMode("octal"));
    // }

    @Test
    public void testInverseSine()
    {
        assertEquals(1.5707963267948966, MathMethods.iSin(1), 0.1);
    }

    public void squareTest()
    {
        assertEquals(16, MathMethods.square(4), 0.1);
    }

    @Test
    public void tangentTest()
    {
        assertEquals(-3.380515005246586, MathMethods.tangent(5), 0.1);
    }

    @Test
    public void inverseTangentTest()
    {
        assertEquals(1.550798992821746, MathMethods.iTan(50), 0.1);
    }

    @Test
    public void inverseTest()
    {
        assertEquals(.1, MathMethods.inverse(10), 0.1);

    }
}