boa_engine 0.17.0

Boa is a Javascript lexer, parser and compiler written in Rust. Currently, it has support for some of the language.
Documentation 
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use crate::{run_test_actions, JsNativeErrorKind, TestAction};
use indoc::indoc;

#[test]
fn ordinary_has_instance_nonobject_prototype() {
    run_test_actions([TestAction::assert_native_error(
        indoc! {r#"
            function C() {}
            C.prototype = 1
            String instanceof C
        "#},
        JsNativeErrorKind::Type,
        "function has non-object prototype in instanceof check",
    )]);
}

#[test]
fn object_properties_return_order() {
    run_test_actions([
        TestAction::run_harness(),
        TestAction::run(indoc! {r#"
                var o = {
                    p1: 'v1',
                    p2: 'v2',
                    p3: 'v3',
                };
                o.p4 = 'v4';
                o[2] = 'iv2';
                o[0] = 'iv0';
                o[1] = 'iv1';
                delete o.p1;
                delete o.p3;
                o.p1 = 'v1';
            "#}),
        TestAction::assert(r#"arrayEquals(Object.keys(o), [ "0", "1", "2", "p2", "p4", "p1" ])"#),
        TestAction::assert(
            r#"arrayEquals(Object.values(o), [ "iv0", "iv1", "iv2", "v2", "v4", "v1" ])"#,
        ),
    ]);
}