<?php

declare(strict_types=1);

namespace Tests\Unit\Shared\Enums;

use Shared\Enums\Currency;

covers(Currency::class);

describe('currency', function (): void {
    it('has the expected cases with their backing values', function (): void {
        // THEN
        expect(Currency::EUR->value())->toBe(1);
    });

    it('exposes its case name', function (): void {
        // THEN
        expect(Currency::EUR->name())->toBe('EUR');
    });

    it('returns the defined label', function (): void {
        // THEN
        expect(Currency::EUR->label())->toBe('Euro');
    });

    it('lists all labels keyed by case name', function (): void {
        // THEN
        expect(Currency::toLabels())->toBe([
            'EUR' => 'Euro',
        ]);
    });

    it('lists all values keyed by case name', function (): void {
        // THEN
        expect(Currency::toValues())->toBe([
            'EUR' => 1,
        ]);
    });

    it('makes an instance from its backing value', function (): void {
        // THEN
        expect(Currency::make(1))->toBe(Currency::EUR);
    });

    it('makes an instance from a label', function (): void {
        // THEN
        expect(Currency::make('Euro', 'label'))->toBe(Currency::EUR);
    });

    it('returns the same instance when already an enum case', function (): void {
        // THEN
        expect(Currency::make(Currency::EUR))->toBe(Currency::EUR);
    });

    it('returns null for an unknown value', function (): void {
        // THEN
        expect(Currency::make(99))->toBeNull();
    });

    it('implements equals correctly', function (): void {
        // THEN
        expect(Currency::EUR->equals(Currency::EUR))->toBeTrue()
            ->and(Currency::EUR->equals(null))->toBeFalse();
    });
});