scratch-vm/test/integration/unknown-opcode-as-reporter-block.js
Christopher Willis-Ford 840ffb5df0 test: don't use process.exit to end tests
Newer versions of `tap` run more asynchronously, so sometimes using `process.nextTick(process.exit)`
to end a test would prevent the test from completing correctly. Removing all instances of
`process.nextTick(process.exit)` put tests into three categories:
* the test still worked correctly -- no fixup needed.
* the test would hang because the VM's `_steppingInterval` was keeping
  Node alive. These tests call a new `quit()` method which ends the
  stepping interval.
* the `load-extensions` test needed special attention because the "Video
  Sensing" extension starts its own loop using `setTimeout`. I added a
  `_stopLoop()` method on the extension and directly call that from the
  test. I'm not completely happy with this solution but anything more
  general would likely require a change to the extension spec, so I'm
  leaving that as a followup task.
2022-06-07 11:44:06 -07:00

54 lines
2.3 KiB
JavaScript

const path = require('path');
const test = require('tap').test;
const makeTestStorage = require('../fixtures/make-test-storage');
const readFileToBuffer = require('../fixtures/readProjectFile').readFileToBuffer;
const VirtualMachine = require('../../src/index');
const uri = path.resolve(__dirname, '../fixtures/unknown-opcode-as-reporter-block.sb2');
const project = readFileToBuffer(uri);
test('unknown opcode', t => {
const vm = new VirtualMachine();
vm.attachStorage(makeTestStorage());
vm.start();
vm.clear();
vm.setCompatibilityMode(false);
vm.setTurboMode(false);
vm.loadProject(project).then(() => {
vm.greenFlag();
// The project has 4 blocks in a single stack:
// when green flag
// if "unknown block"
// set volume to "unknown block"
// play sound "unknown block"
// the "unknown block" has unknown opcode and was created by
// dragging a discontinued extension.
// It should be parsed in without error and a shadow block
// should be created where appropriate.
const blocks = vm.runtime.targets[0].blocks;
const topBlockId = blocks.getScripts()[0];
const secondBlockId = blocks.getNextBlock(topBlockId);
const thirdBlockId = blocks.getNextBlock(secondBlockId);
const fourthBlockId = blocks.getNextBlock(thirdBlockId);
t.equal(blocks.getBlock(topBlockId).opcode, 'event_whenflagclicked');
t.equal(blocks.getBlock(secondBlockId).opcode, 'control_wait_until');
t.equal(blocks.getBlock(thirdBlockId).opcode, 'sound_setvolumeto');
t.equal(blocks.getBlock(fourthBlockId).opcode, 'sound_play');
const secondBlockInputId = blocks.getBlock(secondBlockId).inputs.CONDITION.block;
const thirdBlockInputId = blocks.getBlock(thirdBlockId).inputs.VOLUME.block;
const fourthBlockInputId = blocks.getBlock(fourthBlockId).inputs.SOUND_MENU.block;
t.equal(secondBlockInputId, null);
t.true(blocks.getBlock(thirdBlockInputId).shadow);
t.equal(blocks.getBlock(thirdBlockInputId).opcode, 'math_number');
t.true(blocks.getBlock(fourthBlockInputId).shadow);
t.equal(blocks.getBlock(fourthBlockInputId).opcode, 'sound_sounds_menu');
vm.quit();
t.end();
});
});