}
@Test
public void testNullExpression() throws Exception {
ObjectExpression node = new NullExpression();
Assert.assertEquals(merge(new PrintStatement(new TranslateString(
new TranslateCheck(node)))), "false");
Assert.assertEquals(merge(new PrintStatement(new TranslateString(
new TranslateInteger(node)))), "0");
Assert.assertEquals(merge(new PrintStatement(new TranslateString(
new TranslateDouble(node)))), "0.0");
Assert.assertEquals(merge(new PrintStatement(new TranslateString(
new TranslateString(node)))), "null");
Assert.assertEquals(merge(new PrintStatement(node)), "null");
}