scratch-vm/test/unit/engine_mutation-adapter.js

const {test} = require('node:test');
const assert = require('node:assert');

const mutationAdapter = require('../../src/engine/mutation-adapter');

test('spec', () => {
    assert.strictEqual(typeof mutationAdapter, 'function');
});

test('convert DOM to Scratch object', () => {
    const testStringRaw = '"arbitrary" & \'complicated\' test string';
    const testStringEscaped = '\\"arbitrary\\" & 'complicated' test string';
    const xml = `<mutation blockInfo="{&quot;text&quot;:&quot;${testStringEscaped}&quot;}"></mutation>`;
    const expectedMutation = {
        tagName: 'mutation',
        children: [],
        blockInfo: {
            text: testStringRaw
        }
    };

    // TODO: do we want to test passing a DOM node to `mutationAdapter`? Node.js doesn't have built-in DOM support...
    const mutationFromString = mutationAdapter(xml);
    assert.deepEqual(mutationFromString, expectedMutation);
});