common = require("../common");
assert = common.assert

var Script = require('vm').Script;
common.debug('run a string');
var script = new Script('"passed";');
common.debug('script created');
var result1 = script.runInNewContext();
var result2 = script.runInNewContext();
assert.equal('passed', result1);
assert.equal('passed', result2);

common.debug('thrown error');
script = new Script('throw new Error("test");');
assert.throws(function() {
  script.runInNewContext();
});



common.debug('undefined reference');
var error;
script = new Script('foo.bar = 5;');
try {
  script.runInNewContext();
} catch (e) {
  error = e;
}
assert.ok(error);
assert.ok(error.message.indexOf('not defined') >= 0);

common.debug('error.message: ' + error.message);


hello = 5;
script = new Script('hello = 2');
script.runInNewContext();
assert.equal(5, hello);


common.debug("pass values in and out");
code = "foo = 1;"
     + "bar = 2;"
     + "if (baz !== 3) throw new Error('test fail');";
foo = 2;
obj = { foo : 0, baz : 3 };
script = new Script(code);
var baz = script.runInNewContext(obj);
assert.equal(1, obj.foo);
assert.equal(2, obj.bar);
assert.equal(2, foo);

common.debug("call a function by reference");
script = new Script("f()");
function changeFoo () { foo = 100 }
script.runInNewContext({ f : changeFoo });
assert.equal(foo, 100);

common.debug("modify an object by reference");
script = new Script("f.a = 2");
var f = { a : 1 };
script.runInNewContext({ f : f });
assert.equal(f.a, 2);

common.debug("invalid this");
assert.throws(function() {
  script.runInNewContext.call('"hello";');
});


