updated datadict test cases

tests/DataDict/FirebirdTestCase.php

@@ -45,7 +45,7 @@ class Doctrine_DataDict_Firebird_TestCase extends Doctrine_UnitTestCase
         try {
             $this->dataDict->getPortableDeclaration(array('type' => 'unknown'));
             $this->fail();
-        } catch(Doctrine_DataDict_Firebird_Exception $e) {
+        } catch(Doctrine_DataDict_Exception $e) {
             $this->pass();
         }
     }

tests/DataDict/MssqlTestCase.php

@@ -37,7 +37,7 @@ class Doctrine_DataDict_Mssql_TestCase extends Doctrine_UnitTestCase
         try {
             $this->dataDict->getPortableDeclaration(array('type' => 'some_unknown_type'));
             $this->fail();
-        } catch(Doctrine_DataDict_Mssql_Exception $e) {
+        } catch(Doctrine_DataDict_Exception $e) {
             $this->pass();
         }
     }

tests/DataDict/MysqlTestCase.php

@@ -44,7 +44,7 @@ class Doctrine_DataDict_Mysql_TestCase extends Doctrine_UnitTestCase {
         try {
             $this->dataDict->getPortableDeclaration(array('type' => 'some_unknown_type'));
             $this->fail();
-        } catch(Doctrine_DataDict_Mysql_Exception $e) {
+        } catch(Doctrine_DataDict_Exception $e) {
             $this->pass();
         }
     }

tests/DataDict/OracleTestCase.php

@@ -36,7 +36,7 @@ class Doctrine_DataDict_Oracle_TestCase extends Doctrine_UnitTestCase {
         try {
             $this->dataDict->getPortableDeclaration(array('type' => 'some_unknown_type'));
             $this->fail();
-        } catch(Doctrine_DataDict_Oracle_Exception $e) {
+        } catch(Doctrine_DataDict_Exception $e) {
             $this->pass();
         }
     }

tests/DataDict/PgsqlTestCase.php

@@ -41,7 +41,7 @@ class Doctrine_DataDict_Pgsql_TestCase extends Doctrine_UnitTestCase
         try {
             $this->dataDict->getPortableDeclaration(array('type' => 'some_unknown_type'));
             $this->fail();
-        } catch(Doctrine_DataDict_Pgsql_Exception $e) {
+        } catch(Doctrine_DataDict_Exception $e) {
             $this->pass();
         }
     }