Ticket #47701: 47701.2.patch

tests/phpunit/tests/functions/wpGetMimeTypes.php

@@ +1 @@
+<?php
+
+/**
+ * Test wp_get_mime_types().
+ *
+ * @group functions.php
+ */
+class Tests_wp_get_mime_types extends WP_UnitTestCase {
+
+        /**
+         * @ticket 47701
+         */
+        public function test_all_mime_match() {
+                $mime_types_start = wp_get_mime_types();
+
+                $this->assertInternalType( 'array', $mime_types_start );
+                $this->assertNotEmpty( $mime_types_start );
+
+                add_filter( 'mime_types', '__return_empty_array' );
+                $mime_types_empty = wp_get_mime_types();
+                $this->assertSame( array(), $mime_types_empty );
+
+                remove_filter( 'mime_types', '__return_empty_array' );
+                $mime_types = wp_get_mime_types();
+                $this->assertInternalType( 'array', $mime_types );
+                $this->assertNotEmpty( $mime_types );
+                // and did it revert to the org after filter remove
+                $this->assertSame( $mime_types_start, $mime_types );
+        }
+}