tests/js/escape.mjs


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import assert from "node:assert/strict";

import * as runner from "../runner.mjs";
import {
	escape,
} from "../../src/escape.mjs";

const test_escape = async t => {
	t.start("escape()");

	await t.test("numbers", () => {
		assert.equal(escape(0),  "0");
		assert.equal(escape(42), "42");
		assert.equal(escape(-1), "-1");
	});

	await t.test("object", () => {
		assert.equal(escape({}),         "[object Object]");
		assert.equal(escape({ k: "v" }), "[object Object]");
	});

	await t.test("string with special chars", () => {
		assert.strictEqual(escape(`"`),        "&quot;");
		assert.strictEqual(escape(`"bar`),     "&quot;bar");
		assert.strictEqual(escape(`foo"`),     "foo&quot;");
		assert.strictEqual(escape(`foo"bar`),  "foo&quot;bar");
		assert.strictEqual(escape(`foo""bar`), "foo&quot;&quot;bar");

		assert.strictEqual(escape("&"),        "&amp;");
		assert.strictEqual(escape("&bar"),     "&amp;bar");
		assert.strictEqual(escape("foo&"),     "foo&amp;");
		assert.strictEqual(escape("foo&bar"),  "foo&amp;bar");
		assert.strictEqual(escape("foo&&bar"), "foo&amp;&amp;bar");

		assert.strictEqual(escape("'"),        "&#39;");
		assert.strictEqual(escape("'bar"),     "&#39;bar");
		assert.strictEqual(escape("foo'"),     "foo&#39;");
		assert.strictEqual(escape("foo'bar"),  "foo&#39;bar");
		assert.strictEqual(escape("foo''bar"), "foo&#39;&#39;bar");

		assert.strictEqual(escape("<"),        "&lt;");
		assert.strictEqual(escape("<bar"),     "&lt;bar");
		assert.strictEqual(escape("foo<"),     "foo&lt;");
		assert.strictEqual(escape("foo<bar"),  "foo&lt;bar");
		assert.strictEqual(escape("foo<<bar"), "foo&lt;&lt;bar");

		assert.strictEqual(escape(">"),        "&gt;");
		assert.strictEqual(escape(">bar"),     "&gt;bar");
		assert.strictEqual(escape("foo>"),     "foo&gt;");
		assert.strictEqual(escape("foo>bar"),  "foo&gt;bar");
		assert.strictEqual(escape("foo>>bar"), "foo&gt;&gt;bar");
	});

	await t.test("the combination of all special characters", () => {
		assert.strictEqual(	
			escape(`foo, "bar", 'baz' & <quux>`),
			"foo, &quot;bar&quot;, &#39;baz&#39; &amp; &lt;quux&gt;",
		);
	});
};


await runner.runTests([
	test_escape,
]);