Fixes for tests

app/Services/Invoice/AutoBillInvoice.php

@@ -132,7 +132,7 @@ class AutoBillInvoice extends AbstractService
             info("adjusting credit balance {$current_credit->balance} by this amount ". $credit['amount']);
 
             $current_credit->service()
-                           ->updateBalance($credit['amount']*-1)
+                           ->adjustBalance($credit['amount']*-1)
                            ->updatePaidToDate($credit['amount'])
                            ->setCalculatedStatus()
                            ->save();

tests/Feature/EntityPaidToDateTest.php

@@ -0,0 +1,141 @@
+<?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\Feature;
+
+use App\DataMapper\ClientSettings;
+use App\Factory\ClientFactory;
+use App\Factory\CreditFactory;
+use App\Factory\InvoiceFactory;
+use App\Factory\InvoiceItemFactory;
+use App\Factory\PaymentFactory;
+use App\Helpers\Invoice\InvoiceSum;
+use App\Models\Client;
+use App\Models\ClientContact;
+use App\Models\Credit;
+use App\Models\Invoice;
+use App\Models\Payment;
+use App\Utils\Traits\MakesHash;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Foundation\Testing\DatabaseTransactions;
+use Illuminate\Foundation\Testing\WithoutEvents;
+use Illuminate\Routing\Middleware\ThrottleRequests;
+use Illuminate\Support\Facades\Session;
+use Illuminate\Validation\ValidationException;
+use Tests\MockAccountData;
+use Tests\TestCase;
+
+/**
+ * @test
+ */
+class EntityPaidToDateTest extends TestCase
+{
+    use MakesHash;
+    use DatabaseTransactions;
+    use MockAccountData;
+    use WithoutEvents;
+
+    public function setUp() :void
+    {
+        parent::setUp();
+
+        Session::start();
+
+        $this->faker = \Faker\Factory::create();
+
+        Model::reguard();
+
+        $this->makeTestData();
+        $this->withoutExceptionHandling();
+
+        $this->withoutMiddleware(
+            ThrottleRequests::class
+        );
+    }
+
+    public function testPaidToDateWithMarkPaidAction()
+    {
+
+        //create new client
+        
+        $data = [
+            'name' => 'A Nice Client',
+        ];
+
+        $response = $this->withHeaders([
+                'X-API-SECRET' => config('ninja.api_secret'),
+                'X-API-TOKEN' => $this->token,
+            ])->post('/api/v1/clients', $data);
+
+        $response->assertStatus(200);
+
+        $arr = $response->json();
+
+        $client_hash_id = $arr['data']['id'];
+        $client = Client::find($this->decodePrimaryKey($client_hash_id));
+        
+        $this->assertEquals($client->balance, 0);
+        $this->assertEquals($client->paid_to_date, 0);
+        //create new invoice.
+
+        $line_items = [];
+
+        $item = InvoiceItemFactory::create();
+        $item->quantity = 1;
+        $item->cost = 10;
+
+        $line_items[] = (array)$item;
+
+        $item = InvoiceItemFactory::create();
+        $item->quantity = 1;
+        $item->cost = 10;
+
+        $line_items[] = (array)$item;
+
+        $invoice = [
+            'status_id' => 1,
+            'number' => '',
+            'discount' => 0,
+            'is_amount_discount' => 1,
+            'po_number' => '3434343',
+            'public_notes' => 'notes',
+            'is_deleted' => 0,
+            'custom_value1' => 0,
+            'custom_value2' => 0,
+            'custom_value3' => 0,
+            'custom_value4' => 0,
+            'client_id' => $client_hash_id,
+            'line_items' => (array)$line_items,
+        ];
+
+        $response = $this->withHeaders([
+                'X-API-SECRET' => config('ninja.api_secret'),
+                'X-API-TOKEN' => $this->token,
+            ])->post('/api/v1/invoices/', $invoice)
+            ->assertStatus(200);
+
+        $arr = $response->json();
+    
+        $invoice_one_hashed_id = $arr['data']['id'];
+
+        $invoice = Invoice::find($this->decodePrimaryKey($invoice_one_hashed_id));
+
+        $this->assertEquals($invoice->balance, 0);
+        $this->assertEquals($invoice->paid_to_date, 0);
+
+        $invoice->service()->markSent()->save();
+
+        $this->assertEquals($invoice->balance, 20);
+
+        $invoice->service()->markPaid()->save();
+
+        $this->assertEquals($invoice->paid_to_date, 20);
+    }
+}