import static org.junit.Assert.*;

import org.junit.Test;

public class EmailTest {

    @Test
    public void testNewDefaultEmail() {
        Email email = new Email();

        String  to      = email.getTo();
        String  from    = email.getFrom();
        String  subject = email.getSubject();
        boolean sent    = email.isSent();

        assertEquals( "Incorrent result", "", to );
        assertEquals( "Incorrent result", "", from );
        assertEquals( "Incorrent result", "", subject );
        assertFalse ( "Incorrent result",     sent );
    }

    @Test
    public void testNewCustomEmail() {
        Email email = new Email( "trible@cnu.edu", "padilla@cnu.edu", "free meals" );

        String  to      = email.getTo();
        String  from    = email.getFrom();
        String  subject = email.getSubject();
        boolean sent    = email.isSent();

        assertEquals( "Incorrent result", "trible@cnu.edu",  to );
        assertEquals( "Incorrent result", "padilla@cnu.edu", from );
        assertEquals( "Incorrent result", "free meals",      subject );
        assertFalse ( "Incorrent result",                    sent );
    }

    @Test
    public void testSetEmailFields() {
        Email email = new Email();

        email.setTo     ( "doughty@cnu.edu" );
        email.setFrom   ( "moody@cnu.edu" );
        email.setSubject( "all ok" );

        String  to      = email.getTo();
        String  from    = email.getFrom();
        String  subject = email.getSubject();
        boolean sent    = email.isSent();

        assertEquals( "Incorrent result", "doughty@cnu.edu", to );
        assertEquals( "Incorrent result", "moody@cnu.edu",   from );
        assertEquals( "Incorrent result", "all ok",          subject );
        assertFalse ( "Incorrent result",                    sent );
    }

    @Test
    public void testDeliverEmailWithNoTO() {
        Email email = new Email();

        email.setFrom   ( "padilla@cnu.edu" );
        email.setSubject( "tuition" );

        int     delivered = email.deliver();
        boolean sent      = email.isSent();

        assertEquals( "Incorrent result", -1, delivered ); // no TO
        assertFalse ( "Incorrent result",     sent );
    }

    @Test
    public void testDeliverEmailWithNoFROM() {
        Email   email     = new Email( "flores@cnu.edu", "", "no final exam" );
        int     delivered = email.deliver();
        boolean sent      = email.isSent();

        assertEquals( "Incorrent result", -2, delivered ); // no FROM
        assertFalse ( "Incorrent result",     sent );
    }

    @Test
    public void testDeliverEmailAlreadyDelivered() {
        Email   email     = new Email( "trible@cnu.edu", "flores@cnu.edu", "party" );
        int     delivered = email.deliver();
        boolean sent      = email.isSent();

        assertEquals( "Incorrent result", 0, delivered ); // delivery OK
        assertTrue  ( "Incorrent result",    sent );

        delivered = email.deliver();
        sent      = email.isSent();

        assertEquals( "Incorrent result", -3, delivered ); // already delivered
        assertTrue  ( "Incorrent result",     sent );
    }

    @Test
    public void testDeliverEmailWithNoTOThenNoFROMThenAlreadyDelivered() {
        Email email = new Email();

        int     delivered = email.deliver();
        boolean sent      = email.isSent();

        assertEquals( "Incorrent result", -1, delivered ); // no TO
        assertFalse ( "Incorrent result",     sent );

        email.setTo( "doughty@cnu.edu" );

        delivered = email.deliver();
        sent      = email.isSent();

        assertEquals( "Incorrent result", -2, delivered ); // no FROM
        assertFalse ( "Incorrent result",     sent );

        email.setFrom( "flores@cnu.edu" );

        delivered = email.deliver();
        sent      = email.isSent();

        assertEquals( "Incorrent result", 0, delivered ); // delivery OK
        assertTrue  ( "Incorrent result",    sent );

        delivered = email.deliver();
        sent      = email.isSent();

        assertEquals( "Incorrent result", -3, delivered ); // already delivered
        assertTrue  ( "Incorrent result",     sent );
    }
}