AdditiveExpressionTest.java

package org.dynjs.runtime;

import static org.fest.assertions.Assertions.*;

import org.junit.Test;

public class AdditiveExpressionTest extends AbstractDynJSTestSupport {

    @Test
    public void testAddIntegers() {
        Object result = eval("1+2");
        assertThat(result).isEqualTo(3L);
    }

    @Test
    public void testAddDoubles() {
        Object result = eval("1.1 + 2.1");
        assertThat(result).isEqualTo(3.2);
    }

    @Test
    public void testAddIntToDouble() {
        Object result = eval("1 + 2.1");
        assertThat(result).isEqualTo(3.1);
    }

    @Test
    public void testAddDoubleToInt() {
        Object result = eval("1.1 + 2");
        assertThat(result).isEqualTo(3.1);
    }

    @Test
    public void testSubtractIntegers() {
        Object result = eval("3-1");
        assertThat(result).isEqualTo(2L);
    }

    @Test
    public void testSubtractDoubles() {
        Object result = eval("3.2 - 1.1");
        assertThat(result).isEqualTo(2.1);
    }

    @Test
    public void testSubtractIntFromDouble() {
        Object result = eval("3.2 - 1");
        assertThat(result).isEqualTo(2.2);
    }

    @Test
    public void testSubtractDoubleFromInt() {
        Object result = eval("3 - 1.1");
        assertThat(result).isEqualTo(1.9);
    }
    
    @Test
    public void testAddStringAndInteger() {
        assertThat( eval( "'foo' + 42") ).isEqualTo("foo42" );
    }
    
    @Test
    public void testAddIntegerAndString() {
        assertThat( eval( "42 + 'foo'") ).isEqualTo("42foo" );
    }
}