InvocableTest.java 文件源码

@Test
/**
 * Tests whether invocation of a JavaScript method through a variable arity
 * Java method will pass the vararg array. Both non-vararg and vararg
 * JavaScript methods are tested.
 *
 * @throws ScriptException
 */
public void variableArityInterfaceTest() throws ScriptException {
    final ScriptEngineManager m = new ScriptEngineManager();
    final ScriptEngine e = m.getEngineByName("nashorn");
    e.eval(
            "function test1(i, strings) {"
            + "    return 'i == ' + i + ', strings instanceof java.lang.String[] == ' + (strings instanceof Java.type('java.lang.String[]')) + ', strings == ' + java.util.Arrays.toString(strings)"
            + "}"
            + "function test2() {"
            + "    return 'arguments[0] == ' + arguments[0] + ', arguments[1] instanceof java.lang.String[] == ' + (arguments[1] instanceof Java.type('java.lang.String[]')) + ', arguments[1] == ' + java.util.Arrays.toString(arguments[1])"
            + "}");
    final VariableArityTestInterface itf = ((Invocable) e).getInterface(VariableArityTestInterface.class);
    Assert.assertEquals(itf.test1(42, "a", "b"), "i == 42, strings instanceof java.lang.String[] == true, strings == [a, b]");
    Assert.assertEquals(itf.test2(44, "c", "d", "e"), "arguments[0] == 44, arguments[1] instanceof java.lang.String[] == true, arguments[1] == [c, d, e]");
}