Add tests for get_post().

Author: johnbillion

tests/data/get_post.php

@@ -0,0 +1,21 @@
+<?php
+
+declare(strict_types=1);
+
+namespace SzepeViktor\PHPStan\WordPress\Tests;
+
+use function PHPStan\Testing\assertType;
+
+// Default output
+assertType('WP_Post|null', get_post(1));
+assertType('WP_Post|null', get_post(1,OBJECT));
+assertType('WP_Post|null', get_post(1,'Hello'));
+
+// Unknown output
+assertType('array|\WP_Post|null', get_post(1,_GET['foo']));
+
+// Associative array output
+assertType('array<string, mixed>|null', get_post(1,ARRAY_A));
+
+// Numeric array output
+assertType('array<int, mixed>|null', get_post(1,ARRAY_N));

tests/testTest.php

@@ -17,6 +17,7 @@ public function dataFileAsserts(): iterable
         // path to a file with actual asserts of expected types:
         yield from $this->gatherAssertTypes(__DIR__ . '/data/get_comment.php');
         yield from $this->gatherAssertTypes(__DIR__ . '/data/get_object_taxonomies.php');
+        yield from $this->gatherAssertTypes(__DIR__ . '/data/get_post.php');
         yield from $this->gatherAssertTypes(__DIR__ . '/data/mysql2date.php');
     }