Initial commit

tests/Pest/CurrencyManagerTest.php

@@ -0,0 +1,192 @@
+<?php
+
+use ArchTech\Money\Currencies\USD;
+use ArchTech\Money\Currency;
+use ArchTech\Money\Tests\Currencies\CZK;
+use ArchTech\Money\Tests\Currencies\EUR;
+
+beforeEach(fn () => currencies()->reset());
+
+test('only USD is loaded by default', function () {
+    expect(currencies()->all())
+        ->toHaveCount(1)
+        ->toHaveKey('USD');
+});
+
+test('USD is the default currency', function () {
+    expect(currencies()->getDefault())->toBeInstanceOf(USD::class);
+});
+
+test('USD is the current currency', function () {
+    expect(currencies()->getCurrent())->toBeInstanceOf(USD::class);
+});
+
+test('the default currency can be changed', function () {
+    currencies()->add([CZK::class, EUR::class]);
+
+    expect(currencies()->getDefault())->toBeInstanceOf(USD::class);
+
+    // Using class
+    currencies()->setDefault(CZK::class);
+    expect(currencies()->getDefault())->toBeInstanceOf(CZK::class);
+
+    // Using code
+    currencies()->setDefault('EUR');
+    expect(currencies()->getDefault())->toBeInstanceOf(EUR::class);
+});
+
+test('the current currency can be changed', function () {
+    currencies()->add([CZK::class, EUR::class]);
+
+    expect(currencies()->getCurrent())->toBeInstanceOf(USD::class);
+
+    // Using class
+    currencies()->setCurrent(CZK::class);
+    expect(currencies()->getCurrent())->toBeInstanceOf(CZK::class);
+
+    // Using code
+    currencies()->setCurrent('EUR');
+    expect(currencies()->getCurrent())->toBeInstanceOf(EUR::class);
+});
+
+test('the current currency can be persisted', function () {
+    currencies()->add([CZK::class, EUR::class]);
+
+    $store = [];
+    $resolverCalled = false;
+
+    currencies()->storeCurrentUsing(function ($currency) use (&$store) {
+        $store[] = $currency;
+    });
+
+    currencies()->resolveCurrentUsing(function () use (&$resolverCalled, &$store) {
+        $resolverCalled = true;
+
+        return last($store);
+    });
+
+    currencies()->setCurrent('CZK');
+    expect($store)->toBe(['CZK']);
+    expect(currencies()->getCurrent()->code())->toBe('CZK');
+    expect($resolverCalled)->toBeFalse();
+
+    currencies()->setCurrent('EUR');
+    expect($store)->toBe(['CZK', 'EUR']);
+    expect(currencies()->getCurrent()->code())->toBe('EUR');
+    expect($resolverCalled)->toBeFalse();
+
+    currencies()->forgetCurrent();
+
+    expect(currencies()->getCurrent()->code())->toBe('EUR');
+    expect($resolverCalled)->toBeTrue(); // got called
+});
+
+test('individual currencies can be removed', function () {
+    currencies()->add(CZK::class);
+
+    expect(currencies()->all())->toHaveCount(2);
+
+    currencies()->remove('USD');
+
+    expect(currencies()->all())->toHaveCount(1);
+});
+
+test('currencies can be cleared', function () {
+    currencies()->clear();
+    expect(currencies()->all())->toHaveCount(0);
+});
+
+test('more currencies can be provided', function () {
+    currencies()->add([CZK::class, EUR::class]);
+
+    expect(currencies()->all())->toHaveCount(3);
+});
+
+test('duplicate currencies get overriden', function () {
+    $customUSD = new USD(rate: 20);
+
+    currencies()->add($customUSD);
+
+    expect(currencies()->all())->toHaveCount(1);
+    expect(currencies()->all())->toHaveKey('USD', $customUSD);
+});
+
+test('the default currency can have any rate', function () {
+    // This tests that the default currency doesn't have to have a rate of 1
+    currencies()->add([CZK::class, EUR::class]);
+
+    expect(
+        money(1500, 'CZK')->convertTo(EUR::class)->formatted()
+    )->toBe('0.54 €');
+
+    currencies()->setDefault(CZK::class);
+
+    expect(
+        money(1500, 'CZK')->convertTo(EUR::class)->formatted()
+    )->toBe('0.54 €');
+});
+
+test('the getCode method accepts any currency format', function () {
+    expect(currencies()->getCode(USD::class))->toBe('USD');
+    expect(currencies()->getCode(new USD))->toBe('USD');
+    expect(currencies()->getCode('USD'))->toBe('USD');
+});
+
+test('array currencies get converted to anonymous Currency objects', function () {
+    currencies()->add((new CZK)->toArray());
+
+    expect(currencies()->all())->toHaveKey('CZK');
+});
+
+test('add accepts any currency format', function () {
+    currencies()->clear();
+
+    // Class instances
+    currencies()->add($instance = new CZK);
+    expect(currencies()->all())->toHaveKey('CZK', $instance);
+
+    // Anonymous class instances
+    currencies()->add($gbp = new Currency(code: 'GBP', rate: 0.8, name: 'British Pound'));
+    expect(currencies()->all())->toHaveKey('GBP', $gbp);
+
+    // Class names
+    currencies()->add(USD::class);
+    expect(currencies()->all())->toHaveKey('USD');
+
+    // Arrays
+    currencies()->add((new CZK)->toArray());
+    expect(currencies()->all())->toHaveKey('CZK');
+});
+
+test('the add method accepts an array of named Currency instances', function () {
+    currencies()->add([
+        new CZK,
+        new EUR,
+    ]);
+
+    expect(currencies()->all())->toHaveKeys(['CZK', 'EUR']);
+});
+
+test('the add method accepts an array of anonymous Currency instances', function () {
+    currencies()->add([
+        new Currency(code: 'USD', rate: 1, name: 'United States Dollar'),
+        new Currency(code: 'EUR', rate: 0.8, name: 'Euro'),
+    ]);
+
+    expect(currencies()->all())->toHaveKeys(['USD', 'EUR']);
+});
+
+test('the add method accepts an array of Currency class strings', function () {
+    currencies()->add([USD::class, EUR::class]);
+
+    expect(currencies()->all())->toHaveKeys(['USD', 'EUR']);
+});
+
+test('the add method accepts an array of currency arrays', function () {
+    currencies()->add([
+        (new CZK)->toArray(),
+        (new EUR)->toArray(),
+    ]);
+
+    expect(currencies()->all())->toHaveKeys(['USD', 'CZK', 'EUR']);
+});