cover exception

tests/Doctrine/Tests/DBAL/Functional/Schema/MySqlSchemaManagerTest.php

@@ -3,6 +3,7 @@
 namespace Doctrine\Tests\DBAL\Functional\Schema;
 
 use DateTime;
+use Doctrine\DBAL\Exception\InvalidArgumentException;
 use Doctrine\DBAL\Platforms\AbstractPlatform;
 use Doctrine\DBAL\Platforms\MariaDb1027Platform;
 use Doctrine\DBAL\Platforms\MySqlPlatform;
@@ -237,6 +238,29 @@ public function testAlterTableExplicitColumnPosition(): void
         self::assertSame(['id', 'new', 'b', 'a'], array_keys($this->schemaManager->listTableColumns($tableName)));
     }
 
+    public function testAlterTableExplicitColumnPositionColumnNotFoundException(): void
+    {
+        $tableName = 'test_column_position';
+        $table     = new Table($tableName);
+        $table->addColumn('id', 'integer');
+
+        $this->schemaManager->createTable($table);
+
+        $table2 = new Table($tableName);
+        $table2->addColumn('id', 'float');
+        $table2->addColumn('a', 'float');
+        $table2WithoutAColumn = new Table($tableName);
+        $table2WithoutAColumn->addColumn('id', 'float');
+
+        $comparator    = new Comparator();
+        $diff          = $comparator->diffTable($table, $table2);
+        $diff->toTable = $table2WithoutAColumn;
+
+        $this->expectException(InvalidArgumentException::class);
+        $this->expectExceptionMessageMatches('~Column name "a" not found');
+        $this->schemaManager->alterTable($diff);
+    }
+
     public function testColumnCharset(): void
     {
         $table = new Table('test_column_charset');