import { Test, TestingModule } from "@nestjs/testing";
import { SkillsService } from "./skills.service";
import { skills } from "@/skills/skills";

describe("SkillsService", () => {
    let service: SkillsService;

    beforeEach(async () => {
        const module: TestingModule = await Test.createTestingModule({
            providers: [SkillsService],
        }).compile();

        skills.splice(0);
        skills.push({
            name: "Writing tests",
            description: "Writing tests",
            category: "Testing",
        });
        skills.push({
            name: "TDD",
            description: "Test Driven Development",
            category: "Testing",
        });
        skills.push({
            name: "OOP",
            description: "Object Orientated Programming",
            category: "Programming style",
        });
        service = module.get<SkillsService>(SkillsService);
    });

    it("should be defined", () => {
        expect(service).toBeDefined();
    });

    describe("getMany method", () => {
        it("should be defined", () => {
            expect(service.getMany).toBeDefined();
        });
        it("should return an array", () => {
            expect(Array.isArray(service.getMany())).toBe(true);
        });

        it("should return 3 entries", () => {
            expect(service.getMany().length).toBe(3);
        });

        it("should return 2 entries", () => {
            expect(service.getMany({ category: "Testing" }).length).toBe(2);
        });
    });
});