added TestCase for Sqlite portable error handling

tests/Connection/SqliteTestCase.php

+<?php
+class Doctrine_Connection_Sqlite_TestCase extends Doctrine_Driver_UnitTestCase {
+    public function __construct() {
+        parent::__construct('sqlite');
+    }
+    public function testNoSuchTableErrorIsSupported() {
+        $this->exc->processErrorInfo(array(0,0, 'no such table: test1'));
+        
+        $this->assertEqual($this->exc->getPortableCode(), Doctrine::ERR_NOSUCHTABLE);
+    }
+    public function testNoSuchIndexErrorIsSupported() {
+        $this->exc->processErrorInfo(array(0,0, 'no such index: test1'));
+        
+        $this->assertEqual($this->exc->getPortableCode(), Doctrine::ERR_NOT_FOUND);
+    }
+    public function testUniquePrimaryKeyErrorIsSupported() {
+        $this->exc->processErrorInfo(array(0,0, 'PRIMARY KEY must be unique'));
+        
+        $this->assertEqual($this->exc->getPortableCode(), Doctrine::ERR_CONSTRAINT);
+    }
+    public function testIsNotUniqueErrorIsSupported() {
+        $this->exc->processErrorInfo(array(0,0, 'is not unique'));
+        
+        $this->assertEqual($this->exc->getPortableCode(), Doctrine::ERR_CONSTRAINT);
+    }
+    public function testColumnsNotUniqueErrorIsSupported() {
+        $this->exc->processErrorInfo(array(0,0, 'columns name, id are not unique'));
+        
+        $this->assertEqual($this->exc->getPortableCode(), Doctrine::ERR_CONSTRAINT);
+    }
+    public function testUniquenessConstraintErrorIsSupported() {
+        $this->exc->processErrorInfo(array(0,0, 'uniqueness constraint failed'));
+        
+        $this->assertEqual($this->exc->getPortableCode(), Doctrine::ERR_CONSTRAINT);
+    }
+    public function testNotNullConstraintErrorIsSupported() {
+        $this->exc->processErrorInfo(array(0,0, 'may not be NULL'));
+        
+        $this->assertEqual($this->exc->getPortableCode(), Doctrine::ERR_CONSTRAINT_NOT_NULL);
+    }
+    public function testNoSuchFieldErrorIsSupported() {
+        $this->exc->processErrorInfo(array(0,0, 'no such column: column1'));
+        
+        $this->assertEqual($this->exc->getPortableCode(), Doctrine::ERR_NOSUCHFIELD);
+    }
+    public function testColumnNotPresentInTablesErrorIsSupported2() {
+        $this->exc->processErrorInfo(array(0,0, 'column not present in both tables'));
+        
+        $this->assertEqual($this->exc->getPortableCode(), Doctrine::ERR_NOSUCHFIELD);
+    }
+    public function testNearSyntaxErrorIsSupported() {
+        $this->exc->processErrorInfo(array(0,0, "near \"SELECT FROM\": syntax error"));
+        
+        $this->assertEqual($this->exc->getPortableCode(), Doctrine::ERR_SYNTAX);
+    }
+    public function testValueCountOnRowErrorIsSupported() {
+        $this->exc->processErrorInfo(array(0,0, '3 values for 2 columns'));
+        
+        $this->assertEqual($this->exc->getPortableCode(), Doctrine::ERR_VALUE_COUNT_ON_ROW);
+    }
+}