DoWhileExpressionTest.java

package org.dynjs.runtime;

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

import org.dynjs.exception.ThrowException;
import org.junit.Test;

public class DoWhileExpressionTest extends AbstractDynJSTestSupport {

    @Test
    public void testBasicDoWhile() {
        eval("var x = 0",
                "do {",
                "  x = 42;",
                "} while ( x != 42 );");
        Object x = getContext().resolve("x").getValue(getContext());
        assertThat(x).isEqualTo(42L);
    }

    @Test
    public void testDoWhileWithoutCurlies() {
        eval("var x = 0",
                "do x = 42; while ( x != 42 );");
        Object x = getContext().resolve("x").getValue(getContext());
        assertThat(x).isEqualTo(42L);
    }

    @Test
    public void testDoWhileWithTestThrowing() {
        try {
            eval("var x = 0",
                    "do x = 42; while ( iDoNotExist );");
            throw new AssertionError("Should have throw a ReferenceError on iDoNotExist");
        } catch (ThrowException e) {
            // expected and correct
        }
        Object x = getContext().resolve("x").getValue(getContext());
        assertThat(x).isEqualTo(42L);
    }

}