test/commands/throw.js - master - kopython/_hyperscript

test/commands/throw.js
200 строк5 KB
Viktor Szépe
Fix typos (#450)
08 окт 2023, 03:40
08 окт 2023, 03:40189dc55
describe("the throw command", function () {
	beforeEach(function () {
		clearWorkArea();
	});
	afterEach(function () {
		clearWorkArea();
	});

	it("can throw a basic exception", function () {
		try {
			var script = make(
				"<script type='text/hyperscript'>" + "def foo() " + '  throw "foo"' + "end" + "</script>"
			);
			foo();
			fail("Should have thrown");
		} catch (e) {
			e.should.equal("foo");
		} finally {
			delete window.foo;
		}
	});

	it("can throw an async exception", function (done) {
		var script = make(
			"<script type='text/hyperscript'>" + "def foo() " + "  wait 2ms" + '  throw "foo"' + "end" + "</script>"
		);
		foo().catch(function (error) {
			error.should.equal("foo");
			done();
		});
		delete window.foo;
	});

	it("async exceptions propagate properly", function (done) {
		var script = make(
			"<script type='text/hyperscript'>" +
				"def foo() " +
				"  wait 2ms" +
				'  throw "foo"' +
				"end " +
				"def bar() " +
				"  call foo()" +
				"end" +
				"</script>"
		);
		bar().catch(function (error) {
			error.should.equal("foo");
			delete window.foo;
			delete window.bar;
			done();
		});
	});

	it("async exceptions as throws propagate properly", function (done) {
		window.bar = function () {
			throw "foo";
		};
		var script = make(
			"<script type='text/hyperscript'>" + "def foo() " + "  wait 2ms" + "  call bar()" + "end" + "</script>"
		);
		foo().catch(function (error) {
			error.should.equal("foo");
			delete window.foo;
			delete window.bar;
			done();
		});
	});

	it("exceptions propagate from a worker", function (done) {
		var script = make(
			"<script type='text/hyperscript'>" +
				"worker example" +
				"  def func " +
				"    throw 'foo'" +
				"  end " +
				"end" +
				"</script>"
		);
		window.example.func().catch(function (error) {
			assert.equal(error, "foo");
			delete window.example;
			done();
		});
	});

	it("async exceptions propagate from a worker", function (done) {
		var script = make(
			"<script type='text/hyperscript'>" +
				"worker example" +
				"  def func " +
				"    wait 2ms" +
				"    throw 'foo'" +
				"  end " +
				"end" +
				"</script>"
		);
		window.example.func().catch(function (error) {
			assert.equal(error, "foo");
			delete window.example;
			done();
		});
	});

	it("exceptions propagate from a worker through a function", function (done) {
		var script = make(
			"<script type='text/hyperscript'>" +
				"worker example" +
				"  def func " +
				"    throw 'foo'" +
				"  end " +
				"end " +
				"def foo() " +
				"  return example.func() " +
				"end " +
				"</script>"
		);
		foo().catch(function (error) {
			assert.equal(error, "foo");
			delete window.example;
			delete window.foo;
			done();
		});
	});

	it("exceptions propagate from an async worker through a function", function (done) {
		var script = make(
			"<script type='text/hyperscript'>" +
				"worker example" +
				"  def func " +
				"    wait 2ms" +
				"    throw 'foo'" +
				"  end " +
				"end " +
				"def foo() " +
				"  return example.func() " +
				"end " +
				"</script>"
		);
		foo().catch(function (error) {
			assert.equal(error, "foo");
			delete window.example;
			delete window.foo;
			done();
		});
	});

	it("exceptions propagate from an async worker through an async function", function (done) {
		var script = make(
			"<script type='text/hyperscript'>" +
				"worker example" +
				"  def func " +
				"    wait 2ms" +
				"    throw 'foo'" +
				"  end " +
				"end " +
				"def foo() " +
				"  wait 2ms" +
				"  return example.func() " +
				"end " +
				"</script>"
		);
		foo().catch(function (error) {
			assert.equal(error, "foo");
			delete window.example;
			delete window.foo;
			done();
		});
	});

	it("can throw inside an event handler", function () {
		var d1 = make(
			"<div id='d1' _='on click throw \"foo\" then" +
				'                                          put "bar" into my.innerHTML\'></div>'
		);
		d1.click();
		d1.innerText.should.equal("");
	});

	it("can respond to exceptions in an event handler with an event handler", function () {
		var d1 = make(
			'<div id=\'d1\' _=\'on click throw "foo" then put "bar" into my.innerHTML end' +
				"                                 on exception(error) put error into my.innerHTML end '></div>"
		);
		d1.click();
		d1.innerText.should.equal("foo");
	});

	it("can respond to async exceptions in an event handler with an event handler", function (done) {
		var d1 = make(
			'<div id=\'d1\' _=\'on click wait 2ms then throw "foo" then put "bar" into my.innerHTML end' +
				"                                 on exception(error) put error into my.innerHTML end '></div>"
		);
		d1.click();
		d1.innerText.should.equal("");
		setTimeout(function () {
			d1.innerText.should.equal("foo");
			done();
		}, 10);
	});
});