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const test = require('tap').test;
const Sequencer = require('../../src/engine/sequencer');
const Runtime = require('../../src/engine/runtime');
const Thread = require('../../src/engine/thread');
const RenderedTarget = require('../../src/sprites/rendered-target');
const Sprite = require('../../src/sprites/sprite');
test('spec', t => {
t.type(Sequencer, 'function');
const r = new Runtime();
const s = new Sequencer(r);
t.type(s, 'object');
t.ok(s instanceof Sequencer);
t.type(s.stepThreads, 'function');
t.type(s.stepThread, 'function');
t.type(s.stepToBranch, 'function');
t.type(s.stepToProcedure, 'function');
t.type(s.retireThread, 'function');
t.end();
});
const randomString = function () {
const top = Math.random().toString(36);
return top.substring(7);
};
const generateBlock = function (id) {
const block = {fields: Object,
id: id,
inputs: {},
STEPS: Object,
block: 'fakeBlock',
name: 'fakeName',
next: null,
opcode: 'procedures_definition',
mutation: {proccode: 'fakeCode'},
parent: null,
shadow: false,
topLevel: true,
x: 0,
y: 0
};
return block;
};
const generateBlockInput = function (id, next, inp) {
const block = {fields: Object,
id: id,
inputs: {SUBSTACK: {block: inp, name: 'SUBSTACK'}},
STEPS: Object,
block: 'fakeBlock',
name: 'fakeName',
next: next,
opcode: 'procedures_definition',
mutation: {proccode: 'fakeCode'},
parent: null,
shadow: false,
topLevel: true,
x: 0,
y: 0
};
return block;
};
const generateThread = function (runtime) {
const s = new Sprite(null, runtime);
const rt = new RenderedTarget(s, runtime);
const th = new Thread(randomString());
let next = randomString();
let inp = randomString();
let name = th.topBlock;
rt.blocks.createBlock(generateBlockInput(name, next, inp));
th.pushStack(name);
rt.blocks.createBlock(generateBlock(inp));
for (let i = 0; i < 10; i++) {
name = next;
next = randomString();
inp = randomString();
rt.blocks.createBlock(generateBlockInput(name, next, inp));
th.pushStack(name);
rt.blocks.createBlock(generateBlock(inp));
}
rt.blocks.createBlock(generateBlock(next));
th.pushStack(next);
th.target = rt;
th.blockContainer = rt.blocks;
runtime.threads.push(th);
return th;
};
test('stepThread', t => {
const r = new Runtime();
const s = new Sequencer(r);
let th = generateThread(r);
t.notEquals(th.status, Thread.STATUS_DONE);
s.stepThread(th);
t.strictEquals(th.status, Thread.STATUS_DONE);
th = generateThread(r);
th.status = Thread.STATUS_YIELD;
s.stepThread(th);
t.notEquals(th.status, Thread.STATUS_DONE);
th.status = Thread.STATUS_PROMISE_WAIT;
s.stepThread(th);
t.notEquals(th.status, Thread.STATUS_DONE);
t.end();
});
test('stepToBranch', t => {
const r = new Runtime();
const s = new Sequencer(r);
const th = generateThread(r);
s.stepToBranch(th, 2, false);
t.strictEquals(th.peekStack(), null);
th.popStack();
s.stepToBranch(th, 1, false);
t.strictEquals(th.peekStack(), null);
th.popStack();
th.popStack();
s.stepToBranch(th, 1, false);
t.notEquals(th.peekStack(), null);
t.end();
});
test('retireThread', t => {
const r = new Runtime();
const s = new Sequencer(r);
const th = generateThread(r);
t.strictEquals(th.stack.length, 12);
s.retireThread(th);
t.strictEquals(th.stack.length, 0);
t.strictEquals(th.status, Thread.STATUS_DONE);
t.end();
});
test('stepToProcedure', t => {
const r = new Runtime();
const s = new Sequencer(r);
const th = generateThread(r);
let expectedBlock = th.peekStack();
s.stepToProcedure(th, '');
t.strictEquals(th.peekStack(), expectedBlock);
s.stepToProcedure(th, 'faceCode');
t.strictEquals(th.peekStack(), expectedBlock);
th.target.blocks.createBlock({
id: 'internalId',
opcode: 'procedures_prototype',
mutation: {
proccode: 'othercode'
}
});
expectedBlock = th.stack[th.stack.length - 4];
th.target.blocks.getBlock(expectedBlock).inputs.custom_block = {
type: 'custom_block',
block: 'internalId'
};
s.stepToProcedure(th, 'othercode');
t.strictEquals(th.peekStack(), expectedBlock);
t.end();
});
test('stepThreads', t => {
const r = new Runtime();
r.currentStepTime = Infinity;
const s = new Sequencer(r);
t.strictEquals(s.stepThreads().length, 0);
generateThread(r);
t.strictEquals(r.threads.length, 1);
// Threads should be marked DONE and removed in the same step they finish.
t.strictEquals(s.stepThreads().length, 1);
t.end();
});
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