harmonyc/dist/model/Router.js

Harmony Code - model-driven BDD for Vitest

import { xmur3 } from "../util/xmur3.js";
export class Router {
    constructor(outs, seed = 'TODO') {
        this.outs = outs;
        this.index = 0;
        this.started = new Set();
        this.covered = new Set();
        this.random = xmur3(seed);
    }
    next() {
        if (this.outs.length === 0)
            throw new Error('internal error: no outs');
        if (this.index < this.outs.length)
            return this.outs[this.index++];
        else
            return this.outs[this.random() % this.outs.length];
    }
    get incompleteCount() {
        return this.outs.length - this.index;
    }
}
export class Routers {
    constructor(root) {
        this.root = root;
        this.routers = new Map();
        this.discover(root);
    }
    discover(branch) {
        const successors = branch.successors;
        if (!this.routers.has(branch)) {
            this.routers.set(branch, new Router(successors));
        }
        for (const s of successors)
            this.discover(s);
    }
    get(branch) {
        if (!this.routers.has(branch)) {
            this.routers.set(branch, new Router(branch.successors));
        }
        return this.routers.get(branch);
    }
    nextWalk() {
        const walk = [];
        let current = this.root;
        while (current.successors.length) {
            current = this.get(current).next();
            walk.push(current);
        }
        return walk;
    }
    getIncompleteCount() {
        return Array.from(this.routers.values()).reduce((sum, r) => sum + r.incompleteCount, 0);
    }
}