Added test cases for Building DELETE Statements

Signed-off-by: Deven Bansod <[email protected]>

Author: devenbansod

tests/Builder/DeleteStatementTest.php

@@ -0,0 +1,82 @@
+<?php
+
+namespace SqlParser\Tests\Builder;
+
+use SqlParser\Parser;
+
+use SqlParser\Tests\TestCase;
+
+class DeleteStatementTest extends TestCase
+{
+
+    public function testBuilderSingleTable()
+    {
+    	/* Assertion 1 */
+        $query = 'DELETE IGNORE FROM t1';
+
+        $parser = new Parser($query);
+        $stmt = $parser->statements[0];
+
+        $this->assertEquals($query, $stmt->build());
+
+        /* Assertion 2 */
+        $query = 'DELETE IGNORE FROM t1 WHERE 1=1';
+
+        $parser = new Parser($query);
+        $stmt = $parser->statements[0];
+
+        $this->assertEquals($query, $stmt->build());
+
+        /* Assertion 3 */
+        $query = 'DELETE IGNORE FROM t1 WHERE 1=1 ORDER BY id ASC';
+
+        $parser = new Parser($query);
+        $stmt = $parser->statements[0];
+
+        $this->assertEquals($query, $stmt->build());
+
+        /* Assertion 4 */
+        $query = 'DELETE IGNORE FROM t1 WHERE 1=1 ORDER BY id ASC LIMIT 0, 25';
+
+        $parser = new Parser($query);
+        $stmt = $parser->statements[0];
+
+        $this->assertEquals($query, $stmt->build());
+
+        /* Assertion 5 */
+        $query = 'DELETE IGNORE FROM t1';
+
+        $parser = new Parser($query);
+        $stmt = $parser->statements[0];
+
+        $this->assertEquals($query, $stmt->build());
+
+        /* Assertion 6 */
+        $query = 'DELETE LOW_PRIORITY FROM `test`.users '
+        	. 'WHERE `id`<3 AND (username="Dan" OR username="Paul") ORDER BY id ASC';
+
+        $parser = new Parser($query);
+        $stmt = $parser->statements[0];
+
+        $this->assertEquals($query, $stmt->build());
+    }
+
+    public function testBuilderMultiTable()
+    {
+    	/* Assertion 1 */
+        $query = 'DELETE QUICK table1, table2.* FROM table1 AS `t1`, table2 AS `t2`';
+
+        $parser = new Parser($query);
+        $stmt = $parser->statements[0];
+
+        $this->assertEquals($query, $stmt->build());
+
+        /* Assertion 2 */
+        $query = 'DELETE QUICK table1, table2.* FROM table1 AS `t1`, table2 AS `t2` WHERE 1=1';
+
+        $parser = new Parser($query);
+        $stmt = $parser->statements[0];
+
+        $this->assertEquals($query, $stmt->build());
+    }
+}