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

/**
 * The test class scienticFunctionsTest.
 *
 * @author  (your name)
 * @version (a version number or a date)
 */
public class scienticFunctionsTest
{
    private scienticFunctions scientificFunctions;
    
    @Before
    public void setUp(){
        scientificFunctions = new scienticFunctions();
    }

    @Test
    public void sineTest(){
        // :Given
        Double expected = 0.0;

        // :When
        Double actual = scientificFunctions.sine(0.0);

        // :Then
        Assert.assertEquals(expected, actual);
    }
    
    @Test
    public void cosineTest(){
        // :Given
        Double expected = 1.0;

        // :When
        Double actual = scientificFunctions.cosine(0);

        // :Then
        Assert.assertEquals(expected, actual);
    }
    
    @Test
    public void tangentTest(){
        // :Given
        Double expected = 0.0;

        // :When
        Double actual = scientificFunctions.tangent(0);

        // :Then
        Assert.assertEquals(expected, actual);
    }
    
    @Test
    public void inverseTangentTest(){
        // :Given
        Double expected = 45.0;

        // :When
        Double actual = scientificFunctions.inverseTangent(1);

        // :Then
        Assert.assertEquals(expected, actual);
    }
    
    @Test
    public void inverseCosineTest(){
        // :Given
        Double expected = 90.0;

        // :When
        Double actual = scientificFunctions.inverseCosine(0.0);

        // :Then
        Assert.assertEquals(expected, actual);
    }
    
    @Test
    public void inverseSineTest(){
        // :Given
        Double expected = 0.0;

        // :When
        Double actual = scientificFunctions.inverseSine(0.0);

        // :Then
        Assert.assertEquals(expected, actual);
    }
}