Fixed the namespace issues

Author: Gabriel Jean

test/Unit/Api/ClientErrorTest.php

@@ -1,5 +1,5 @@
 <?php
-namespace Bigcommerce\Unit\Api;
+namespace Bigcommerce\Test\Unit\Api;
 
 use Bigcommerce\Api\ClientError;
 use PHPUnit\Framework\TestCase;

test/Unit/Api/ConnectionTest.php

@@ -1,6 +1,6 @@
 <?php
 
-namespace Bigcommerce\Test\Unit;
+namespace Bigcommerce\Test\Unit\Api;
 
 use Bigcommerce\Api\Connection;
 use PHPUnit\Framework\TestCase;

test/Unit/Api/ErrorTest.php

@@ -1,5 +1,5 @@
 <?php
-namespace Bigcommerce\Test\Unit;
+namespace Bigcommerce\Test\Unit\Api;
 
 use Bigcommerce\Api\Error;
 use PHPUnit\Framework\TestCase;

test/Unit/Api/FilterTest.php

@@ -1,5 +1,5 @@
 <?php
-namespace Bigcommerce\Unit\Api;
+namespace Bigcommerce\Test\Unit\Api;
 
 use Bigcommerce\Api\Filter;
 use PHPUnit\Framework\TestCase;

test/Unit/Api/NetworkErrorTest.php

@@ -1,5 +1,5 @@
 <?php
-namespace Bigcommerce\Unit\Api;
+namespace Bigcommerce\Test\Unit\Api;
 
 use Bigcommerce\Api\NetworkError;
 use PHPUnit\Framework\TestCase;

test/Unit/Api/ServerErrorTest.php

@@ -1,5 +1,5 @@
 <?php
-namespace Bigcommerce\Unit\Api;
+namespace Bigcommerce\Test\Unit\Api;
 
 use Bigcommerce\Api\ServerError;
 use PHPUnit\Framework\TestCase;