Created API test for tags visits endpoint

module/Rest/test-api/Action/TagVisitsActionTest.php

@@ -0,0 +1,46 @@
+<?php
+
+declare(strict_types=1);
+
+namespace ShlinkioApiTest\Shlink\Rest\Action;
+
+use Shlinkio\Shlink\TestUtils\ApiTest\ApiTestCase;
+
+use function sprintf;
+
+class TagVisitsActionTest extends ApiTestCase
+{
+    /**
+     * @test
+     * @dataProvider provideTags
+     */
+    public function expectedVisitsAreReturned(string $tag, int $expectedVisitsAmount): void
+    {
+        $resp = $this->callApiWithKey(self::METHOD_GET, sprintf('/tags/%s/visits', $tag));
+        $payload = $this->getJsonResponsePayload($resp);
+
+        $this->assertArrayHasKey('visits', $payload);
+        $this->assertArrayHasKey('data', $payload['visits']);
+        $this->assertCount($expectedVisitsAmount, $payload['visits']['data']);
+    }
+
+    public function provideTags(): iterable
+    {
+        yield 'foo' => ['foo', 5];
+        yield 'bar' => ['bar', 2];
+        yield 'baz' => ['baz', 0];
+    }
+
+    /** @test */
+    public function notFoundErrorIsReturnedForInvalidTags(): void
+    {
+        $resp = $this->callApiWithKey(self::METHOD_GET, '/tags/invalid_tag/visits');
+        $payload = $this->getJsonResponsePayload($resp);
+
+        $this->assertEquals(self::STATUS_NOT_FOUND, $resp->getStatusCode());
+        $this->assertEquals(self::STATUS_NOT_FOUND, $payload['status']);
+        $this->assertEquals('TAG_NOT_FOUND', $payload['type']);
+        $this->assertEquals('Tag with name "invalid_tag" could not be found', $payload['detail']);
+        $this->assertEquals('Tag not found', $payload['title']);
+    }
+}