sebastienros.jint/Jint.Tests.PublicInterface/JavaScriptExceptionTests.cs

using Jint.Native;
using Jint.Native.Error;
using Jint.Runtime;

namespace Jint.Tests.PublicInterface
{
    public class JavaScriptExceptionTests
    {
        [Fact]
        public void CanCreateAndThrowJavaScriptException()
        {
            var engine = new Engine();

            engine.SetValue("throw1", () =>
            {
                throw new JavaScriptException(engine.Realm.Intrinsics.Error, "message 1");
            });

            engine.SetValue("throw2", () =>
            {
                throw new JavaScriptException(new JsString("message 2"));
            });

            Assert.Throws<JavaScriptException>(() =>
            {
                engine.Evaluate(@"throw1()");
            });

            var result1 = engine.Evaluate(@"try { throw1() } catch (e) { return e; }");
            var error1 = Assert.IsType<ErrorInstance>(result1);
            Assert.Equal("message 1", error1.Get("message").ToString());

            var result2 = engine.Evaluate(@"try { throw2() } catch (e) { return e; }");
            var jsString = Assert.IsType<JsString>(result2);
            Assert.Equal("message 2", jsString.ToString());
        }
    }
}