Created an EmptyIpLocationResolver which always returns an empty resolution and can be used as a fallback while resolving IP addresses

module/Common/test/IpGeolocation/EmptyIpLocationResolverTest.php

@@ -0,0 +1,51 @@
+<?php
+declare(strict_types=1);
+
+namespace ShlinkioTest\Shlink\Common\IpGeolocation;
+
+use PHPUnit\Framework\TestCase;
+use Shlinkio\Shlink\Common\IpGeolocation\EmptyIpLocationResolver;
+use Shlinkio\Shlink\Common\Util\StringUtilsTrait;
+use function Functional\map;
+use function range;
+
+class EmptyIpLocationResolverTest extends TestCase
+{
+    use StringUtilsTrait;
+
+    private const EMPTY_RESP = [
+        'country_code' => '',
+        'country_name' => '',
+        'region_name' => '',
+        'city' => '',
+        'latitude' => '',
+        'longitude' => '',
+        'time_zone' => '',
+    ];
+
+    /**
+     * @var EmptyIpLocationResolver
+     */
+    private $resolver;
+
+    public function setUp()
+    {
+        $this->resolver = new EmptyIpLocationResolver();
+    }
+
+    /**
+     * @test
+     * @dataProvider provideEmptyResponses
+     */
+    public function alwaysReturnsAnEmptyResponse(array $expected, string $ipAddress)
+    {
+        $this->assertEquals($expected, $this->resolver->resolveIpLocation($ipAddress));
+    }
+
+    public function provideEmptyResponses(): array
+    {
+        return map(range(0, 5), function () {
+            return [self::EMPTY_RESP, $this->generateRandomString(10)];
+        });
+    }
+}