scratch-vm/test/unit/serialization_sb3.js

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const test = require('tap').test;
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const path = require('path');
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const VirtualMachine = require('../../src/index');
const sb3 = require('../../src/serialization/sb3');
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const readFileToBuffer = require('../fixtures/readProjectFile').readFileToBuffer;
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const exampleProjectPath = path.resolve(__dirname, '../fixtures/clone-cleanup.sb2');
const commentsSB2ProjectPath = path.resolve(__dirname, '../fixtures/comments.sb2');
const commentsSB3ProjectPath = path.resolve(__dirname, '../fixtures/comments.sb3');
const commentsSB3NoDupeIds = path.resolve(__dirname, '../fixtures/comments_no_duplicate_id_serialization.sb3');
const variableReporterSB2ProjectPath = path.resolve(__dirname, '../fixtures/top-level-variable-reporter.sb2');
const topLevelReportersProjectPath = path.resolve(__dirname, '../fixtures/top-level-reporters.sb3');
const FakeRenderer = require('../fixtures/fake-renderer');
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test('serialize', t => {
const vm = new VirtualMachine();
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vm.loadProject(readFileToBuffer(exampleProjectPath))
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.then(() => {
const result = sb3.serialize(vm.runtime);
// @todo Analyze
t.type(JSON.stringify(result), 'string');
t.end();
});
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});
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test('deserialize', t => {
const vm = new VirtualMachine();
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sb3.deserialize('', vm.runtime).then(({targets}) => {
// @todo Analyze
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t.type(targets, 'object');
t.end();
});
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});
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test('serialize sb2 project with comments as sb3', t => {
const vm = new VirtualMachine();
vm.loadProject(readFileToBuffer(commentsSB2ProjectPath))
.then(() => {
const result = sb3.serialize(vm.runtime);
t.type(JSON.stringify(result), 'string');
t.type(result.targets, 'object');
t.equal(Array.isArray(result.targets), true);
t.equal(result.targets.length, 2);
const stage = result.targets[0];
t.equal(stage.isStage, true);
// The stage has 0 blocks, and 1 workspace comment
t.type(stage.blocks, 'object');
t.equal(Object.keys(stage.blocks).length, 0);
t.type(stage.comments, 'object');
t.equal(Object.keys(stage.comments).length, 1);
const stageBlockComments = Object.values(stage.comments).filter(comment => !!comment.blockId);
const stageWorkspaceComments = Object.values(stage.comments).filter(comment => comment.blockId === null);
t.equal(stageBlockComments.length, 0);
t.equal(stageWorkspaceComments.length, 1);
const sprite = result.targets[1];
t.equal(sprite.isStage, false);
t.type(sprite.blocks, 'object');
// Sprite 1 has 6 blocks, 5 block comments, and 1 workspace comment
t.equal(Object.keys(sprite.blocks).length, 6);
t.type(sprite.comments, 'object');
t.equal(Object.keys(sprite.comments).length, 6);
const spriteBlockComments = Object.values(sprite.comments).filter(comment => !!comment.blockId);
const spriteWorkspaceComments = Object.values(sprite.comments).filter(comment => comment.blockId === null);
t.equal(spriteBlockComments.length, 5);
t.equal(spriteWorkspaceComments.length, 1);
t.end();
});
});
test('deserialize sb3 project with comments', t => {
const vm = new VirtualMachine();
vm.loadProject(readFileToBuffer(commentsSB3ProjectPath))
.then(() => {
const runtime = vm.runtime;
t.type(runtime.targets, 'object');
t.equal(Array.isArray(runtime.targets), true);
t.equal(runtime.targets.length, 2);
const stage = runtime.targets[0];
t.equal(stage.isStage, true);
// The stage has 0 blocks, and 1 workspace comment
t.type(stage.blocks, 'object');
t.equal(Object.keys(stage.blocks._blocks).length, 0);
t.type(stage.comments, 'object');
t.equal(Object.keys(stage.comments).length, 1);
const stageBlockComments = Object.values(stage.comments).filter(comment => !!comment.blockId);
const stageWorkspaceComments = Object.values(stage.comments).filter(comment => comment.blockId === null);
t.equal(stageBlockComments.length, 0);
t.equal(stageWorkspaceComments.length, 1);
const sprite = runtime.targets[1];
t.equal(sprite.isStage, false);
t.type(sprite.blocks, 'object');
// Sprite 1 has 6 blocks, 5 block comments, and 1 workspace comment
t.equal(Object.values(sprite.blocks._blocks).filter(block => !block.shadow).length, 6);
t.type(sprite.comments, 'object');
t.equal(Object.keys(sprite.comments).length, 6);
const spriteBlockComments = Object.values(sprite.comments).filter(comment => !!comment.blockId);
const spriteWorkspaceComments = Object.values(sprite.comments).filter(comment => comment.blockId === null);
t.equal(spriteBlockComments.length, 5);
t.equal(spriteWorkspaceComments.length, 1);
t.end();
});
});
test('deserialize sb3 project with comments - no duplicate id serialization', t => {
const vm = new VirtualMachine();
vm.loadProject(readFileToBuffer(commentsSB3NoDupeIds))
.then(() => {
const runtime = vm.runtime;
t.type(runtime.targets, 'object');
t.equal(Array.isArray(runtime.targets), true);
t.equal(runtime.targets.length, 2);
const stage = runtime.targets[0];
t.equal(stage.isStage, true);
// The stage has 0 blocks, and 0 workspace comment
t.type(stage.blocks, 'object');
t.equal(Object.keys(stage.blocks._blocks).length, 0);
t.type(stage.comments, 'object');
t.equal(Object.keys(stage.comments).length, 0);
const sprite = runtime.targets[1];
t.equal(sprite.isStage, false);
t.type(sprite.blocks, 'object');
// Sprite1 has 1 blocks, 1 block comment, and 1 workspace comment
t.equal(Object.values(sprite.blocks._blocks).filter(block => !block.shadow).length, 1);
t.type(sprite.comments, 'object');
t.equal(Object.keys(sprite.comments).length, 2);
const spriteBlockComments = Object.values(sprite.comments).filter(comment => !!comment.blockId);
const spriteWorkspaceComments = Object.values(sprite.comments).filter(comment => comment.blockId === null);
t.equal(spriteBlockComments.length, 1);
t.equal(spriteWorkspaceComments.length, 1);
t.end();
});
});
test('serialize sb3 preserves sprite layer order', t => {
const vm = new VirtualMachine();
vm.attachRenderer(new FakeRenderer());
vm.loadProject(readFileToBuffer(path.resolve(__dirname, '../fixtures/ordering.sb2')))
.then(() => {
// Target get layer order needs a renderer,
// fake the numbers we would get back from the
// renderer in order to test that they are serialized
// correctly
vm.runtime.targets[0].getLayerOrder = () => 0;
vm.runtime.targets[1].getLayerOrder = () => 20;
vm.runtime.targets[2].getLayerOrder = () => 10;
vm.runtime.targets[3].getLayerOrder = () => 30;
const result = sb3.serialize(vm.runtime);
t.type(JSON.stringify(result), 'string');
t.type(result.targets, 'object');
t.equal(Array.isArray(result.targets), true);
t.equal(result.targets.length, 4);
// First check that the sprites are ordered correctly (as they would
// appear in the target pane)
t.equal(result.targets[0].name, 'Stage');
t.equal(result.targets[1].name, 'First');
t.equal(result.targets[2].name, 'Second');
t.equal(result.targets[3].name, 'Third');
// Check that they are in the correct layer order (as they would render
// back to front on the stage)
t.equal(result.targets[0].layerOrder, 0);
t.equal(result.targets[1].layerOrder, 2);
t.equal(result.targets[2].layerOrder, 1);
t.equal(result.targets[3].layerOrder, 3);
t.end();
});
});
test('serializeBlocks', t => {
const vm = new VirtualMachine();
vm.loadProject(readFileToBuffer(commentsSB3ProjectPath))
.then(() => {
const blocks = vm.runtime.targets[1].blocks._blocks;
const result = sb3.serializeBlocks(blocks);
// @todo Analyze
t.type(result[0], 'object');
t.ok(Object.keys(result[0]).length < Object.keys(blocks).length, 'less blocks in serialized format');
t.ok(Array.isArray(result[1]));
t.end();
});
});
test('serializeBlocks serializes x and y for topLevel blocks with x,y of 0,0', t => {
const vm = new VirtualMachine();
vm.loadProject(readFileToBuffer(topLevelReportersProjectPath))
.then(() => {
// Verify that there are 2 blocks and they are both top level
const blocks = vm.runtime.targets[1].blocks._blocks;
const blockIds = Object.keys(blocks);
t.equal(blockIds.length, 2);
const blocksArray = blockIds.map(key => blocks[key]);
t.equal(blocksArray.every(b => b.topLevel), true);
// Simulate cleaning up the blocks by resetting x and y positions to 0
blockIds.forEach(blockId => {
blocks[blockId].x = 0;
blocks[blockId].y = 0;
});
const result = sb3.serializeBlocks(blocks);
const serializedBlocks = result[0];
t.type(serializedBlocks, 'object');
const serializedBlockIds = Object.keys(serializedBlocks);
t.equal(serializedBlockIds.length, 2);
const firstBlock = serializedBlocks[serializedBlockIds[0]];
const secondBlock = serializedBlocks[serializedBlockIds[1]];
t.equal(firstBlock.x, 0);
t.equal(firstBlock.y, 0);
t.equal(secondBlock.x, 0);
t.equal(secondBlock.y, 0);
t.end();
});
});
test('deserializeBlocks', t => {
const vm = new VirtualMachine();
vm.loadProject(readFileToBuffer(commentsSB3ProjectPath))
.then(() => {
const blocks = vm.runtime.targets[1].blocks._blocks;
const serialized = sb3.serializeBlocks(blocks)[0];
const deserialized = sb3.deserializeBlocks(serialized);
t.equal(Object.keys(deserialized).length, Object.keys(blocks).length, 'same number of blocks');
t.end();
});
});
test('deserializeBlocks on already deserialized input', t => {
const vm = new VirtualMachine();
vm.loadProject(readFileToBuffer(commentsSB3ProjectPath))
.then(() => {
const blocks = vm.runtime.targets[1].blocks._blocks;
const serialized = sb3.serializeBlocks(blocks)[0];
const deserialized = sb3.deserializeBlocks(serialized);
const deserializedAgain = sb3.deserializeBlocks(deserialized);
t.deepEqual(deserialized, deserializedAgain, 'no change from second pass of deserialize');
t.end();
});
});
test('getExtensionIdForOpcode', t => {
t.equal(sb3.getExtensionIdForOpcode('wedo_loopy'), 'wedo');
// does not consider CORE to be extensions
t.false(sb3.getExtensionIdForOpcode('control_loopy'));
// only considers things before the first underscore
t.equal(sb3.getExtensionIdForOpcode('hello_there_loopy'), 'hello');
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// does not return anything for opcodes with no extension
t.false(sb3.getExtensionIdForOpcode('hello'));
t.end();
});
test('(#1608) serializeBlocks maintains top level variable reporters', t => {
const vm = new VirtualMachine();
vm.loadProject(readFileToBuffer(variableReporterSB2ProjectPath))
.then(() => {
const blocks = vm.runtime.targets[0].blocks._blocks;
const result = sb3.serialize(vm.runtime);
// Project should have 1 block, a top-level variable reporter
t.equal(Object.keys(blocks).length, 1);
t.equal(Object.keys(result.targets[0].blocks).length, 1);
// Make sure deserializing these blocks works
t.doesNotThrow(() => {
sb3.deserialize(JSON.parse(JSON.stringify(result)), vm.runtime);
});
t.end();
});
});