test: add test for SQLite3 Forge::modifyColumn()

Author: kenjis

tests/system/Database/Live/SQLite3/ForgeModifyColumnTest.php

@@ -0,0 +1,113 @@
+<?php
+
+/**
+ * This file is part of CodeIgniter 4 framework.
+ *
+ * (c) CodeIgniter Foundation <admin@codeigniter.com>
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace CodeIgniter\Database\Live\SQLite3;
+
+use CodeIgniter\Database\Forge;
+use CodeIgniter\Test\CIUnitTestCase;
+use Config\Database;
+
+/**
+ * @group DatabaseLive
+ *
+ * @internal
+ */
+final class ForgeModifyColumnTest extends CIUnitTestCase
+{
+    private Forge $forge;
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+
+        $this->db = Database::connect($this->DBGroup);
+
+        if ($this->db->DBDriver !== 'SQLite3') {
+            $this->markTestSkipped('This test is only for SQLite3.');
+        }
+
+        $this->forge = Database::forge($this->DBGroup);
+    }
+
+    public function testModifyColumnRename(): void
+    {
+        $this->forge->dropTable('forge_test_three', true);
+
+        $this->forge->addField([
+            'id' => [
+                'type'           => 'INTEGER',
+                'constraint'     => 11,
+                'auto_increment' => true,
+            ],
+            'int' => [
+                'type'       => 'INT',
+                'constraint' => 10,
+                'null'       => false,
+                'default'    => 0,
+            ],
+            'varchar' => [
+                'type'       => 'VARCHAR',
+                'constraint' => 7,
+                'null'       => false,
+            ],
+            'decimal' => [
+                'type'       => 'DECIMAL',
+                'constraint' => '10,5',
+                'default'    => 0.1,
+            ],
+            'name' => [
+                'type'       => 'VARCHAR',
+                'constraint' => 255,
+                'null'       => true,
+            ],
+        ]);
+
+        $this->forge->addKey('id', true);
+        $this->forge->createTable('forge_test_three');
+
+        $this->assertTrue($this->db->fieldExists('name', 'forge_test_three'));
+
+        $this->forge->modifyColumn('forge_test_three', [
+            'name' => [
+                'name'       => 'altered',
+                'type'       => 'VARCHAR',
+                'constraint' => 255,
+                'null'       => true,
+            ],
+        ]);
+
+        $this->db->resetDataCache();
+
+        $fieldData = $this->db->getFieldData('forge_test_three');
+        $fields    = [];
+
+        foreach ($fieldData as $obj) {
+            $fields[$obj->name] = $obj;
+        }
+
+        $this->assertFalse($this->db->fieldExists('name', 'forge_test_three'));
+        $this->assertTrue($this->db->fieldExists('altered', 'forge_test_three'));
+
+        $this->assertFalse($fields['int']->nullable);
+        $this->assertSame('0', $fields['int']->default);
+
+        $this->assertFalse($fields['varchar']->nullable);
+        $this->assertNull($fields['varchar']->default);
+
+        $this->assertFalse($fields['decimal']->nullable);
+        $this->assertSame('0.1', $fields['decimal']->default);
+
+        $this->assertTrue($fields['altered']->nullable);
+        $this->assertNull($fields['altered']->default);
+
+        $this->forge->dropTable('forge_test_three', true);
+    }
+}