Tests for credit balances

app/Services/Client/ClientService.php

@@ -51,6 +51,7 @@ class ClientService
         $credits = $this->client->credits
                       ->where('is_deleted', false)
                       ->where('balance', '>', 0)
+                      ->where('due_date', '<=', now())
                       ->sortBy('created_at');
 
         return Number::roundValue($credits->sum('balance'), $this->client->currency()->precision);

tests/Unit/CreditBalanceTest.php

@@ -0,0 +1,79 @@
+<?php
+/**
+ * Invoice Ninja (https://invoiceninja.com).
+ *
+ * @link https://github.com/invoiceninja/invoiceninja source repository
+ *
+ * @copyright Copyright (c) 2021. Invoice Ninja LLC (https://invoiceninja.com)
+ *
+ * @license https://opensource.org/licenses/AAL
+ */
+namespace Tests\Unit;
+
+use App\Models\Account;
+use App\Models\Client;
+use App\Models\Company;
+use App\Models\Credit;
+use App\Models\User;
+use Tests\TestCase;
+
+/**
+ * @test
+ */
+class CreditBalanceTest extends TestCase
+{
+    public function setUp() :void
+    {
+        parent::setUp();
+        $this->faker = \Faker\Factory::create();
+    }
+
+    public function testCreditBalance()
+    {
+
+        $account = Account::factory()->create();
+        $user = User::factory()->create(
+            ['account_id' => $account->id, 'email' => $this->faker->safeEmail]
+        );
+
+        $company = Company::factory()->create(['account_id' => $account->id]);
+        $client = Client::factory()->create(['company_id' => $company->id, 'user_id' => $user->id]);
+
+        $credit = Credit::factory()->create([
+            'user_id' => $user->id,
+            'company_id' => $company->id,
+            'client_id' => $client->id,
+            'balance' => 10,
+            'number' => 'testing-number-01',
+            'status_id' => Credit::STATUS_SENT,
+        ]);
+
+        $this->assertEquals($client->service()->getCreditBalance(), 10);
+    }
+
+
+    public function testExpiredCreditBalance()
+    {
+
+        $account = Account::factory()->create();
+        $user = User::factory()->create(
+            ['account_id' => $account->id, 'email' => $this->faker->safeEmail]
+        );
+
+        $company = Company::factory()->create(['account_id' => $account->id]);
+        $client = Client::factory()->create(['company_id' => $company->id, 'user_id' => $user->id]);
+
+        $credit = Credit::factory()->create([
+            'user_id' => $user->id,
+            'company_id' => $company->id,
+            'client_id' => $client->id,
+            'balance' => 10,
+            'due_date' => now()->addDays(5),
+            'number' => 'testing-number-02',
+            'status_id' => Credit::STATUS_SENT,
+        ]);
+
+        $this->assertEquals($client->service()->getCreditBalance(), 0);
+        
+    }
+}