import test from "ava";
import {Lecture} from "../../src/lib/Lecture.js";


test("Lecture: constructor:", t=>{
    const name = "Informatic", ects = 5, sws = 3;
    const informatic = new Lecture(name, ects, sws, );
    t.is(informatic.name, name);
    t.is(informatic.sws, sws);
    t.is(informatic.ects, ects);
});


test("Lecture: get Effort", t =>{
    const js = new Lecture("JavaScript", 5, 4);
    const effort = js.effortPerWeek(15);
    t.is(effort, 7);
    const lectures = [
        new Lecture("Informatik 1",     5, 4),
        new Lecture("Programmierung 1", 8, 5),
        new Lecture("JavaScript",       5, 4)
    ];
    const effortOfWeek = lectures.reduce( (acc, l) => l.effortPerWeek(15) + acc, 0);
    const expected = 26.25;
    const tolerance = 0.01;
    t.truthy( Math.abs(effortOfWeek - expected) < tolerance );
});

test("Lecture: getter", t => {
    const name = "JavaScript",
        ects = 5,
        sws = 4;
    const js = new Lecture(name, ects, sws);
    t.is(js.name, name);
    t.is(js.ects, ects);
    t.is(js.sws, sws);
});

test("Lecture: setter", t => {
    const name = "JavaScript",
        ects = 5,
        sws = 4;
    const js = new Lecture("name", 1, 3);

    js.ects = ects;
    js.sws = sws;
    t.is(js.ects, ects);
    t.is(js.sws, sws);
});