MDL-75448 stored_file: Cover rotate_image() method with unit tests

2022-08-19 15:38:03 +10:00
parent dd1a805bae
commit c3474f0fb7
2 changed files with 94 additions and 0 deletions
@@ -0,0 +1,94 @@
+<?php
+// This file is part of Moodle - https://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+namespace core;
+
+use advanced_testcase;
+use context_system;
+
+/**
+ * Unit tests for lib/filestorage/stored_file.php.
+ *
+ * @package    core_files
+ * @category   test
+ * @covers     \stored_file
+ * @copyright  2022 Mikhail Golenkov <[email protected]>
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+class stored_file_test extends advanced_testcase {
+
+    /**
+     * Test that the rotate_image() method does not rotate
+     * an image that is not supposed to be rotated.
+     * @covers ::rotate_image()
+     */
+    public function test_rotate_image_does_not_rotate_image() {
+        global $CFG;
+        $this->resetAfterTest();
+
+        $filename = 'testimage.jpg';
+        $filepath = $CFG->dirroot . '/lib/filestorage/tests/fixtures/' . $filename;
+        $filerecord = [
+            'contextid' => context_system::instance()->id,
+            'component' => 'core',
+            'filearea'  => 'unittest',
+            'itemid'    => 0,
+            'filepath'  => '/',
+            'filename'  => $filename,
+        ];
+        $fs = get_file_storage();
+        $storedfile = $fs->create_file_from_pathname($filerecord, $filepath);
+
+        $result = $storedfile->rotate_image();
+        $this->assertIsArray($result);
+        $this->assertCount(2, $result);
+        $this->assertFalse($result[0]);
+        $this->assertFalse($result[1]);
+    }
+
+    /**
+     * Test that the rotate_image() method rotates an image
+     * that is supposed to be rotated.
+     * @covers ::rotate_image()
+     */
+    public function test_rotate_image_rotates_image() {
+        global $CFG;
+        $this->resetAfterTest();
+
+        // This image was manually rotated to be upside down. Also, Orientation, ExifImageWidth
+        // and ExifImageLength EXIF tags were written into its metadata.
+        // This is needed to make sure that this image will be rotated by stored_file::rotate_image()
+        // and stored as a new rotated file.
+        $filename = 'testimage_rotated.jpg';
+        $filepath = $CFG->dirroot . '/lib/filestorage/tests/fixtures/' . $filename;
+        $filerecord = [
+            'contextid' => context_system::instance()->id,
+            'component' => 'core',
+            'filearea'  => 'unittest',
+            'itemid'    => 0,
+            'filepath'  => '/',
+            'filename'  => $filename,
+        ];
+        $fs = get_file_storage();
+        $storedfile = $fs->create_file_from_pathname($filerecord, $filepath);
+
+        list ($rotateddata, $size) = $storedfile->rotate_image();
+        $this->assertNotFalse($rotateddata);
+        $this->assertIsArray($size);
+        $this->assertEquals(1200, $size['width']);
+        $this->assertEquals(297, $size['height']);
+    }
+}