Merge branch 'develop' of git://github.com/EllisLab/CodeIgniter into develop

30 files changed, 277 insertions, 526 deletions

diff --git a/.travis.yml b/.travis.yml
index 6a7d37812..31b74b13b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -19,7 +19,7 @@ before_script:
   - sh -c "if [ '$DB' = 'pgsql' ] || [ '$DB' = 'pdo/pgsql' ]; then psql -c 'create database ci_test;' -U postgres; fi"
   - sh -c "if [ '$DB' = 'mysql' ] || [ '$DB' = 'pdo/mysql' ]; then mysql -e 'create database IF NOT EXISTS ci_test;'; fi"
 
-script: phpunit --configuration tests/travis/$DB.phpunit.xml
+script: phpunit --coverage-text --configuration tests/travis/$DB.phpunit.xml
 
 branches:
   only:
diff --git a/system/core/Security.php b/system/core/Security.php
index f953011eb..9b7ba5799 100755
--- a/system/core/Security.php
+++ b/system/core/Security.php
@@ -191,6 +191,7 @@ class CI_Security {
 	 * Set Cross Site Request Forgery Protection Cookie
 	 *
 	 * @return	object
+	 * @codeCoverageIgnore
 	 */
 	public function csrf_set_cookie()
 	{
diff --git a/system/database/DB_driver.php b/system/database/DB_driver.php
index d8a1c13f0..bbb7b7a80 100644
--- a/system/database/DB_driver.php
+++ b/system/database/DB_driver.php
@@ -742,6 +742,35 @@ abstract class CI_DB_driver {
 	// --------------------------------------------------------------------
 
 	/**
+	 * "Count All" query
+	 *
+	 * Generates a platform-specific query string that counts all records in
+	 * the specified database
+	 *
+	 * @param	string
+	 * @return	int
+	 */
+	public function count_all($table = '')
+	{
+		if ($table == '')
+		{
+			return 0;
+		}
+
+		$query = $this->query($this->_count_string.$this->escape_identifiers('numrows').' FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE));
+		if ($query->num_rows() == 0)
+		{
+			return 0;
+		}
+
+		$query = $query->row();
+		$this->_reset_select();
+		return (int) $query->numrows;
+	}
+
+	// --------------------------------------------------------------------
+
+	/**
 	 * Returns an array of table names
 	 *
 	 * @return	array
@@ -1395,8 +1424,7 @@ abstract class CI_DB_driver {
 
 	/**
 	 * Dummy method that allows Query Builder class to be disabled
-	 *
-	 * This function is used extensively by every db driver.
+	 * and keep count_all() working.
 	 *
 	 * @return	void
 	 */
diff --git a/system/database/drivers/cubrid/cubrid_driver.php b/system/database/drivers/cubrid/cubrid_driver.php
index 944df99b5..817dfdc98 100644
--- a/system/database/drivers/cubrid/cubrid_driver.php
+++ b/system/database/drivers/cubrid/cubrid_driver.php
@@ -329,35 +329,6 @@ class CI_DB_cubrid_driver extends CI_DB {
 	// --------------------------------------------------------------------
 
 	/**
-	 * "Count All" query
-	 *
-	 * Generates a platform-specific query string that counts all records in
-	 * the specified table
-	 *
-	 * @param	string
-	 * @return	int
-	 */
-	public function count_all($table = '')
-	{
-		if ($table == '')
-		{
-			return 0;
-		}
-
-		$query = $this->query($this->_count_string.$this->protect_identifiers('numrows').' FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE));
-		if ($query->num_rows() == 0)
-		{
-			return 0;
-		}
-
-		$query = $query->row();
-		$this->_reset_select();
-		return (int) $query->numrows;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
 	 * List table query
 	 *
 	 * Generates a platform-specific query string so that the table names can be fetched
diff --git a/system/database/drivers/interbase/interbase_driver.php b/system/database/drivers/interbase/interbase_driver.php
index c457f6340..49d3cda87 100644
--- a/system/database/drivers/interbase/interbase_driver.php
+++ b/system/database/drivers/interbase/interbase_driver.php
@@ -244,35 +244,6 @@ class CI_DB_interbase_driver extends CI_DB {
 	// --------------------------------------------------------------------
 
 	/**
-	 * "Count All" query
-	 *
-	 * Generates a platform-specific query string that counts all records in
-	 * the specified database
-	 *
-	 * @param	string
-	 * @return	string
-	 */
-	public function count_all($table = '')
-	{
-		if ($table == '')
-		{
-			return 0;
-		}
-
-		$query = $this->query($this->_count_string.$this->protect_identifiers('numrows').' FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE));
-		if ($query->num_rows() == 0)
-		{
-			return 0;
-		}
-
-		$query = $query->row();
-		$this->_reset_select();
-		return (int) $query->numrows;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
 	 * List table query
 	 *
 	 * Generates a platform-specific query string so that the table names can be fetched
diff --git a/system/database/drivers/mssql/mssql_driver.php b/system/database/drivers/mssql/mssql_driver.php
index 914de499f..342ff2647 100644
--- a/system/database/drivers/mssql/mssql_driver.php
+++ b/system/database/drivers/mssql/mssql_driver.php
@@ -304,35 +304,6 @@ class CI_DB_mssql_driver extends CI_DB {
 	// --------------------------------------------------------------------
 
 	/**
-	 * "Count All" query
-	 *
-	 * Generates a platform-specific query string that counts all records in
-	 * the specified database
-	 *
-	 * @param	string
-	 * @return	string
-	 */
-	public function count_all($table = '')
-	{
-		if ($table == '')
-		{
-			return 0;
-		}
-
-		$query = $this->query($this->_count_string.$this->protect_identifiers('numrows').' FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE));
-		if ($query->num_rows() == 0)
-		{
-			return 0;
-		}
-
-		$row = $query->row();
-		$this->_reset_select();
-		return (int) $row->numrows;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
 	 * List table query
 	 *
 	 * Generates a platform-specific query string so that the table names can be fetched
diff --git a/system/database/drivers/mssql/mssql_forge.php b/system/database/drivers/mssql/mssql_forge.php
index 8f8e7c5b9..bbf2d9685 100644
--- a/system/database/drivers/mssql/mssql_forge.php
+++ b/system/database/drivers/mssql/mssql_forge.php
@@ -48,16 +48,13 @@ class CI_DB_mssql_forge extends CI_DB_forge {
 	 */
 	protected function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists)
 	{
-		$sql = 'CREATE TABLE ';
+		$sql = ($if_not_exists === TRUE)
+			? "IF NOT EXISTS (SELECT * FROM sysobjects WHERE ID = object_id(N'".$table."') AND OBJECTPROPERTY(id, N'IsUserTable') = 1)\n"
+			: '';
 
-		if ($if_not_exists === TRUE)
-		{
-			$sql .= 'IF NOT EXISTS ';
-		}
+		$sql .= 'CREATE TABLE '.$this->db->escape_identifiers($table).' (';
 
-		$sql .= $this->db->escape_identifiers($table).' (';
 		$current_field_count = 0;
-
 		foreach ($fields as $field => $attributes)
 		{
 			// Numeric field names aren't allowed in databases, so if the key is
@@ -65,15 +62,13 @@ class CI_DB_mssql_forge extends CI_DB_forge {
 			// entered the field information, so we'll simply add it to the list
 			if (is_numeric($field))
 			{
-				$sql .= "\n\t$attributes";
+				$sql .= "\n\t".$attributes;
 			}
 			else
 			{
 				$attributes = array_change_key_case($attributes, CASE_UPPER);
 
-				$sql .= "\n\t".$this->db->protect_identifiers($field);
-
-				$sql .=  ' '.$attributes['TYPE'];
+				$sql .= "\n\t".$this->db->escape_identifiers($field).' '.$attributes['TYPE'];
 
 				if (array_key_exists('CONSTRAINT', $attributes))
 				{
@@ -115,7 +110,7 @@ class CI_DB_mssql_forge extends CI_DB_forge {
 		if (count($primary_keys) > 0)
 		{
 			$primary_keys = $this->db->protect_identifiers($primary_keys);
-			$sql .= ",\n\tPRIMARY KEY (" . implode(', ', $primary_keys) . ")";
+			$sql .= ",\n\tPRIMARY KEY (".implode(', ', $primary_keys).')';
 		}
 
 		if (is_array($keys) && count($keys) > 0)
@@ -131,13 +126,11 @@ class CI_DB_mssql_forge extends CI_DB_forge {
 					$key = array($this->db->protect_identifiers($key));
 				}
 
-				$sql .= ",\n\tFOREIGN KEY (" . implode(', ', $key) . ")";
+				$sql .= ",\n\tFOREIGN KEY (".implode(', ', $key).')';
 			}
 		}
 
-		$sql .= "\n)";
-
-		return $sql;
+		return $sql."\n)";
 	}
 
 	// --------------------------------------------------------------------
@@ -167,21 +160,14 @@ class CI_DB_mssql_forge extends CI_DB_forge {
 			return $sql;
 		}
 
-		$sql .= " $column_definition";
+		$sql .= " ".$column_definition;
 
 		if ($default_value != '')
 		{
-			$sql .= " DEFAULT \"$default_value\"";
+			$sql .= " DEFAULT '".$default_value."'";
 		}
 
-		if ($null === NULL)
-		{
-			$sql .= ' NULL';
-		}
-		else
-		{
-			$sql .= ' NOT NULL';
-		}
+		$sql .= ($null === NULL) ? ' NULL' : ' NOT NULL';
 
 		if ($after_field != '')
 		{
@@ -189,7 +175,6 @@ class CI_DB_mssql_forge extends CI_DB_forge {
 		}
 
 		return $sql;
-
 	}
 
 }
diff --git a/system/database/drivers/mysql/mysql_driver.php b/system/database/drivers/mysql/mysql_driver.php
index d801a9aaf..7a1a7b9a2 100644
--- a/system/database/drivers/mysql/mysql_driver.php
+++ b/system/database/drivers/mysql/mysql_driver.php
@@ -326,35 +326,6 @@ class CI_DB_mysql_driver extends CI_DB {
 	// --------------------------------------------------------------------
 
 	/**
-	 * "Count All" query
-	 *
-	 * Generates a platform-specific query string that counts all records in
-	 * the specified database
-	 *
-	 * @param	string
-	 * @return	string
-	 */
-	public function count_all($table = '')
-	{
-		if ($table == '')
-		{
-			return 0;
-		}
-
-		$query = $this->query($this->_count_string.$this->protect_identifiers('numrows').' FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE));
-		if ($query->num_rows() == 0)
-		{
-			return 0;
-		}
-
-		$query = $query->row();
-		$this->_reset_select();
-		return (int) $query->numrows;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
 	 * List table query
 	 *
 	 * Generates a platform-specific query string so that the table names can be fetched
diff --git a/system/database/drivers/mysqli/mysqli_driver.php b/system/database/drivers/mysqli/mysqli_driver.php
index 61761e0c6..dd544f686 100644
--- a/system/database/drivers/mysqli/mysqli_driver.php
+++ b/system/database/drivers/mysqli/mysqli_driver.php
@@ -326,35 +326,6 @@ class CI_DB_mysqli_driver extends CI_DB {
 	// --------------------------------------------------------------------
 
 	/**
-	 * "Count All" query
-	 *
-	 * Generates a platform-specific query string that counts all records in
-	 * the specified database
-	 *
-	 * @param	string
-	 * @return	string
-	 */
-	public function count_all($table = '')
-	{
-		if ($table == '')
-		{
-			return 0;
-		}
-
-		$query = $this->query($this->_count_string.$this->protect_identifiers('numrows').' FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE));
-		if ($query->num_rows() == 0)
-		{
-			return 0;
-		}
-
-		$query = $query->row();
-		$this->_reset_select();
-		return (int) $query->numrows;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
 	 * List table query
 	 *
 	 * Generates a platform-specific query string so that the table names can be fetched
diff --git a/system/database/drivers/oci8/oci8_driver.php b/system/database/drivers/oci8/oci8_driver.php
index e2fa51349..b979c8a17 100644
--- a/system/database/drivers/oci8/oci8_driver.php
+++ b/system/database/drivers/oci8/oci8_driver.php
@@ -455,35 +455,6 @@ class CI_DB_oci8_driver extends CI_DB {
 	// --------------------------------------------------------------------
 
 	/**
-	 * "Count All" query
-	 *
-	 * Generates a platform-specific query string that counts all records in
-	 * the specified database
-	 *
-	 * @param	string
-	 * @return	int
-	 */
-	public function count_all($table = '')
-	{
-		if ($table == '')
-		{
-			return 0;
-		}
-
-		$query = $this->query($this->_count_string.$this->protect_identifiers('numrows').' FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE));
-		if ($query == FALSE)
-		{
-			return 0;
-		}
-
-		$row = $query->row();
-		$this->_reset_select();
-		return (int) $row->numrows;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
 	 * Show table query
 	 *
 	 * Generates a platform-specific query string so that the table names can be fetched
diff --git a/system/database/drivers/odbc/odbc_driver.php b/system/database/drivers/odbc/odbc_driver.php
index e3172117a..98fd806a8 100644
--- a/system/database/drivers/odbc/odbc_driver.php
+++ b/system/database/drivers/odbc/odbc_driver.php
@@ -245,36 +245,6 @@ class CI_DB_odbc_driver extends CI_DB {
 	// --------------------------------------------------------------------
 
 	/**
-	 * "Count All" query
-	 *
-	 * Generates a platform-specific query string that counts all records in
-	 * the specified database
-	 *
-	 * @param	string
-	 * @return	string
-	 */
-	public function count_all($table = '')
-	{
-		if ($table == '')
-		{
-			return 0;
-		}
-
-		$query = $this->query($this->_count_string . $this->protect_identifiers('numrows') . " FROM " . $this->protect_identifiers($table, TRUE, NULL, FALSE));
-
-		if ($query->num_rows() == 0)
-		{
-			return 0;
-		}
-
-		$row = $query->row();
-		$this->_reset_select();
-		return (int) $row->numrows;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
 	 * Show table query
 	 *
 	 * Generates a platform-specific query string so that the table names can be fetched
diff --git a/system/database/drivers/pdo/pdo_driver.php b/system/database/drivers/pdo/pdo_driver.php
index 4784fc65b..ec7f3e19b 100644
--- a/system/database/drivers/pdo/pdo_driver.php
+++ b/system/database/drivers/pdo/pdo_driver.php
@@ -409,38 +409,6 @@ class CI_DB_pdo_driver extends CI_DB {
 	// --------------------------------------------------------------------
 
 	/**
-	 * "Count All" query
-	 *
-	 * Generates a platform-specific query string that counts all records in
-	 * the specified database
-	 *
-	 * @param	string
-	 * @return	string
-	 */
-	public function count_all($table = '')
-	{
-		if ($table == '')
-		{
-			return 0;
-		}
-
-		$sql = $this->_count_string.$this->protect_identifiers('numrows').' FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE);
-		$query = $this->query($sql);
-
-		if ($query->num_rows() == 0)
-		{
-			return 0;
-		}
-
-		$row = $query->row();
-		$this->_reset_select();
-
-		return (int) $row->numrows;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
 	 * Show table query
 	 *
 	 * Generates a platform-specific query string so that the table names can be fetched
diff --git a/system/database/drivers/postgre/postgre_driver.php b/system/database/drivers/postgre/postgre_driver.php
index 30689cc70..c2a188416 100644
--- a/system/database/drivers/postgre/postgre_driver.php
+++ b/system/database/drivers/postgre/postgre_driver.php
@@ -390,35 +390,6 @@ class CI_DB_postgre_driver extends CI_DB {
 	// --------------------------------------------------------------------
 
 	/**
-	 * "Count All" query
-	 *
-	 * Generates a platform-specific query string that counts all records in
-	 * the specified database
-	 *
-	 * @param	string
-	 * @return	string
-	 */
-	public function count_all($table = '')
-	{
-		if ($table == '')
-		{
-			return 0;
-		}
-
-		$query = $this->query($this->_count_string.$this->protect_identifiers('numrows').' FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE));
-		if ($query->num_rows() == 0)
-		{
-			return 0;
-		}
-
-		$query = $query->row();
-		$this->_reset_select();
-		return (int) $query->numrows;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
 	 * Show table query
 	 *
 	 * Generates a platform-specific query string so that the table names can be fetched
diff --git a/system/database/drivers/sqlite/sqlite_driver.php b/system/database/drivers/sqlite/sqlite_driver.php
index d710b945d..d8b869c2e 100644
--- a/system/database/drivers/sqlite/sqlite_driver.php
+++ b/system/database/drivers/sqlite/sqlite_driver.php
@@ -268,35 +268,6 @@ class CI_DB_sqlite_driver extends CI_DB {
 	// --------------------------------------------------------------------
 
 	/**
-	 * "Count All" query
-	 *
-	 * Generates a platform-specific query string that counts all records in
-	 * the specified database
-	 *
-	 * @param	string
-	 * @return	string
-	 */
-	public function count_all($table = '')
-	{
-		if ($table == '')
-		{
-			return 0;
-		}
-
-		$query = $this->query($this->_count_string.$this->protect_identifiers('numrows').' FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE));
-		if ($query->num_rows() == 0)
-		{
-			return 0;
-		}
-
-		$row = $query->row();
-		$this->_reset_select();
-		return (int) $row->numrows;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
 	 * List table query
 	 *
 	 * Generates a platform-specific query string so that the table names can be fetched
diff --git a/system/database/drivers/sqlite3/sqlite3_driver.php b/system/database/drivers/sqlite3/sqlite3_driver.php
index ad2848ed8..ea4cf2d4f 100644
--- a/system/database/drivers/sqlite3/sqlite3_driver.php
+++ b/system/database/drivers/sqlite3/sqlite3_driver.php
@@ -245,30 +245,6 @@ class CI_DB_sqlite3_driver extends CI_DB {
 	// --------------------------------------------------------------------
 
 	/**
-	 * "Count All" query
-	 *
-	 * Generates a platform-specific query string that counts all records in
-	 * the specified database
-	 *
-	 * @param	string
-	 * @return	int
-	 */
-	public function count_all($table = '')
-	{
-		if ($table == '')
-		{
-			return 0;
-		}
-
-		$result = $this->conn_id->querySingle($this->_count_string.$this->protect_identifiers('numrows')
-							.' FROM '.$this->protect_identifiers($table, TRUE, NULL, FALSE));
-
-		return empty($result) ? 0 : (int) $result;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
 	 * Show table query
 	 *
 	 * Generates a platform-specific query string so that the table names can be fetched
diff --git a/system/database/drivers/sqlsrv/sqlsrv_driver.php b/system/database/drivers/sqlsrv/sqlsrv_driver.php
index 5a24f5532..961066da7 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_driver.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_driver.php
@@ -279,35 +279,6 @@ class CI_DB_sqlsrv_driver extends CI_DB {
 	// --------------------------------------------------------------------
 
 	/**
-	 * "Count All" query
-	 *
-	 * Generates a platform-specific query string that counts all records in
-	 * the specified database
-	 *
-	 * @param	string
-	 * @return	int
-	 */
-	public function count_all($table = '')
-	{
-		if ($table == '')
-		{
-			return 0;
-		}
-
-		$query = $this->query("SELECT COUNT(*) AS numrows FROM " . $this->dbprefix . $table);
-		if ($query->num_rows() == 0)
-		{
-			return 0;
-		}
-
-		$row = $query->row();
-		$this->_reset_select();
-		return (int) $row->numrows;
-	}
-
-	// --------------------------------------------------------------------
-
-	/**
 	 * List table query
 	 *
 	 * Generates a platform-specific query string so that the table names can be fetched
diff --git a/system/database/drivers/sqlsrv/sqlsrv_forge.php b/system/database/drivers/sqlsrv/sqlsrv_forge.php
index e9143b269..c817c2c5d 100644
--- a/system/database/drivers/sqlsrv/sqlsrv_forge.php
+++ b/system/database/drivers/sqlsrv/sqlsrv_forge.php
@@ -48,16 +48,13 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
 	 */
 	protected function _create_table($table, $fields, $primary_keys, $keys, $if_not_exists)
 	{
-		$sql = 'CREATE TABLE ';
+		$sql = ($if_not_exists === TRUE)
+			? "IF NOT EXISTS (SELECT * FROM sysobjects WHERE ID = object_id(N'".$table."') AND OBJECTPROPERTY(id, N'IsUserTable') = 1)\n"
+			: '';
 
-		if ($if_not_exists === TRUE)
-		{
-			$sql .= 'IF NOT EXISTS ';
-		}
+		$sql .= 'CREATE TABLE '.$this->db->escape_identifiers($table).' (';
 
-		$sql .= $this->db->escape_identifiers($table).' (';
 		$current_field_count = 0;
-
 		foreach ($fields as $field => $attributes)
 		{
 			// Numeric field names aren't allowed in databases, so if the key is
@@ -65,15 +62,13 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
 			// entered the field information, so we'll simply add it to the list
 			if (is_numeric($field))
 			{
-				$sql .= "\n\t$attributes";
+				$sql .= "\n\t".$attributes;
 			}
 			else
 			{
 				$attributes = array_change_key_case($attributes, CASE_UPPER);
 
-				$sql .= "\n\t".$this->db->protect_identifiers($field);
-
-				$sql .=  ' '.$attributes['TYPE'];
+				$sql .= "\n\t".$this->db->escape_identifiers($field).' '.$attributes['TYPE'];
 
 				if (array_key_exists('CONSTRAINT', $attributes))
 				{
@@ -115,7 +110,7 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
 		if (count($primary_keys) > 0)
 		{
 			$primary_keys = $this->db->protect_identifiers($primary_keys);
-			$sql .= ",\n\tPRIMARY KEY (" . implode(', ', $primary_keys) . ")";
+			$sql .= ",\n\tPRIMARY KEY (".implode(', ', $primary_keys).')';
 		}
 
 		if (is_array($keys) && count($keys) > 0)
@@ -131,13 +126,11 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
 					$key = array($this->db->protect_identifiers($key));
 				}
 
-				$sql .= ",\n\tFOREIGN KEY (" . implode(', ', $key) . ")";
+				$sql .= ",\n\tFOREIGN KEY (".implode(', ', $key).')';
 			}
 		}
 
-		$sql .= "\n)";
-
-		return $sql;
+		return $sql."\n)";
 	}
 
 	// --------------------------------------------------------------------
@@ -167,21 +160,14 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
 			return $sql;
 		}
 
-		$sql .= " $column_definition";
+		$sql .= ' '.$column_definition;
 
 		if ($default_value != '')
 		{
-			$sql .= " DEFAULT \"$default_value\"";
+			$sql .= " DEFAULT '".$default_value."'";
 		}
 
-		if ($null === NULL)
-		{
-			$sql .= ' NULL';
-		}
-		else
-		{
-			$sql .= ' NOT NULL';
-		}
+		$sql .= ($null === NULL) ? ' NULL' : ' NOT NULL';
 
 		if ($after_field != '')
 		{
@@ -189,7 +175,6 @@ class CI_DB_sqlsrv_forge extends CI_DB_forge {
 		}
 
 		return $sql;
-
 	}
 
 }
diff --git a/tests/Bootstrap.php b/tests/Bootstrap.php
index 38615dd89..5216038c6 100644
--- a/tests/Bootstrap.php
+++ b/tests/Bootstrap.php
@@ -7,10 +7,10 @@ error_reporting(E_ALL | E_STRICT);
 $dir = realpath(dirname(__FILE__));
 
 // Path constants
-define('PROJECT_BASE',	realpath($dir.'/../').'/');
-define('BASEPATH',		PROJECT_BASE.'system/');
-define('APPPATH',		PROJECT_BASE.'application/');
-define('VIEWPATH',		PROJECT_BASE.'');
+defined('PROJECT_BASE') OR define('PROJECT_BASE', realpath($dir.'/../').'/');
+defined('BASEPATH') OR define('BASEPATH', PROJECT_BASE.'system/');
+defined('APPPATH') OR define('APPPATH', PROJECT_BASE.'application/');
+defined('VIEWPATH') OR define('VIEWPATH', PROJECT_BASE.'');
 
 // Get vfsStream either via PEAR or composer
 foreach (explode(PATH_SEPARATOR, get_include_path()) as $path)
diff --git a/tests/codeigniter/core/Security_test.php b/tests/codeigniter/core/Security_test.php
index 1796ba74d..b2f8c69d2 100644
--- a/tests/codeigniter/core/Security_test.php
+++ b/tests/codeigniter/core/Security_test.php
@@ -70,4 +70,36 @@ class Security_test extends CI_TestCase {
 
 		$this->assertEquals("Hello, i try to [removed]alert('Hack');[removed] your site", $harmless_string);
 	}
+
+	// --------------------------------------------------------------------
+	
+	public function test_xss_hash()
+	{
+		$this->assertEmpty($this->security->xss_hash);
+
+		// Perform hash
+		$this->security->xss_hash();
+
+		$this->assertTrue(preg_match('#^[0-9a-f]{32}$#iS', $this->security->xss_hash) === 1);
+	}
+
+	// --------------------------------------------------------------------
+	
+	public function test_entity_decode()
+	{
+		$encoded = '<div>Hello <b>Booya</b></div>';
+		$decoded = $this->security->entity_decode($encoded);
+
+		$this->assertEquals('<div>Hello <b>Booya</b></div>', $decoded);
+	}
+
+	// --------------------------------------------------------------------
+	
+	public function test_sanitize_filename()
+	{
+		$filename = './<!--foo-->';
+		$safe_filename = $this->security->sanitize_filename($filename);
+
+		$this->assertEquals('foo', $safe_filename);
+	}
 }
\ No newline at end of file
diff --git a/tests/codeigniter/database/query_builder/escape_test.php b/tests/codeigniter/database/query_builder/escape_test.php
index 50685922a..5d575a37b 100644
--- a/tests/codeigniter/database/query_builder/escape_test.php
+++ b/tests/codeigniter/database/query_builder/escape_test.php
@@ -22,15 +22,22 @@ class Escape_test extends CI_TestCase {
 	 */
 	public function test_escape_like_percent_sign()
 	{
-		$string = '\%foo'
-;
-		$this->db->select('value');
-		$this->db->from('misc');
-		$this->db->like('key', $string, 'after');
-		$res = $this->db->get();
+		// Escape the like string
+		$string = $this->db->escape_like_str('\%foo');
 
+		if (strpos(DB_DRIVER, 'mysql') !== FALSE)
+		{
+			$sql = "SELECT `value` FROM `misc` WHERE `key` LIKE '$string%' ESCAPE '';";
+		}
+		else
+		{
+			$sql = 'SELECT "value" FROM "misc" WHERE "key" LIKE \''.$string.'%\' ESCAPE \'!\';';
+		}
+
+		$res = $this->db->query($sql)->result_array();
+		
 		// Check the result
-		$this->assertEquals(1, count($res->result_array()));
+		$this->assertEquals(1, count($res));
 	}
 
 	// ------------------------------------------------------------------------
@@ -40,15 +47,21 @@ class Escape_test extends CI_TestCase {
 	 */
 	public function test_escape_like_backslash_sign()
 	{
-		$string = '\\';
+		// Escape the like string
+		$string = $this->db->escape_like_str('\\');
 
-		$this->db->select('value');
-		$this->db->from('misc');
-		$this->db->like('key', $string, 'after');
-		$res = $this->db->get();
+		if (strpos(DB_DRIVER, 'mysql') !== FALSE)
+		{
+			$sql = "SELECT `value` FROM `misc` WHERE `key` LIKE '$string%' ESCAPE '';";
+		}
+		else
+		{
+			$sql = 'SELECT "value" FROM "misc" WHERE "key" LIKE \''.$string.'%\' ESCAPE \'!\';';
+		}
 
+		$res = $this->db->query($sql)->result_array();
+		
 		// Check the result
-		$this->assertEquals(2, count($res->result_array()));
+		$this->assertEquals(2, count($res));
 	}
-
 }
\ No newline at end of file
diff --git a/tests/codeigniter/libraries/Table_test.php b/tests/codeigniter/libraries/Table_test.php
index 13f338c6b..f5133de1e 100644
--- a/tests/codeigniter/libraries/Table_test.php
+++ b/tests/codeigniter/libraries/Table_test.php
@@ -291,6 +291,26 @@ class Table_test extends CI_TestCase {
 		);
 	}
 	
-	// Test main generate method
-	// --------------------------------------------------------------------
+	function test_generate()
+	{
+		// Prepare the data
+		$data = array(
+			array('Name', 'Color', 'Size'),
+			array('Fred', 'Blue', 'Small'),
+			array('Mary', 'Red', 'Large'),
+			array('John', 'Green', 'Medium')	
+		);
+
+		$table = $this->table->generate($data);
+
+		// Test the table header
+		$this->assertTrue(strpos($table, '<th>Name</th>') !== FALSE);
+		$this->assertTrue(strpos($table, '<th>Color</th>') !== FALSE);
+		$this->assertTrue(strpos($table, '<th>Size</th>') !== FALSE);
+
+		// Test the first entry
+		$this->assertTrue(strpos($table, '<td>Fred</td>') !== FALSE);
+		$this->assertTrue(strpos($table, '<td>Blue</td>') !== FALSE);
+		$this->assertTrue(strpos($table, '<td>Small</td>') !== FALSE);
+	}
 }
\ No newline at end of file
diff --git a/tests/mocks/autoloader.php b/tests/mocks/autoloader.php
index 92c9bea59..441c88944 100644
--- a/tests/mocks/autoloader.php
+++ b/tests/mocks/autoloader.php
@@ -22,7 +22,7 @@ function autoload($class)
 	);
 
 	$ci_libraries = array(
-		'Calendar', 'Cart', 'Driver',
+		'Calendar', 'Cart', 'Driver_Library',
 		'Email', 'Encrypt', 'Form_validation',
 		'Ftp', 'Image_lib', 'Javascript',
 		'Log', 'Migration', 'Pagination',
@@ -50,7 +50,7 @@ function autoload($class)
 		elseif (in_array($subclass, $ci_libraries))
 		{
 			$dir = BASEPATH.'libraries'.DIRECTORY_SEPARATOR;
-			$class = $subclass;
+			$class = ($subclass == 'Driver_Library') ? 'Driver' : $subclass;
 		}
 		elseif (preg_match('/^CI_DB_(.+)_(driver|forge|result|utility)$/', $class, $m) && count($m) == 3)
 		{
diff --git a/tests/mocks/core/common.php b/tests/mocks/core/common.php
index fc94d7fff..e74576626 100644
--- a/tests/mocks/core/common.php
+++ b/tests/mocks/core/common.php
@@ -2,53 +2,65 @@
 
 // Set up the global CI functions in their most minimal core representation
 
-function &get_instance() 
+if ( ! function_exists('get_instance'))
 {
-	$test = CI_TestCase::instance();
-	$instance = $test->ci_instance();
-	return $instance;
+	function &get_instance() 
+	{
+		$test = CI_TestCase::instance();
+		$instance = $test->ci_instance();
+		return $instance;
+	}
 }
 
 // --------------------------------------------------------------------
 
-function &get_config() {
-	$test = CI_TestCase::instance();
-	$config = $test->ci_get_config();
-		
-	return $config;
+if ( ! function_exists('get_config'))
+{
+	function &get_config() {
+		$test = CI_TestCase::instance();
+		$config = $test->ci_get_config();
+			
+		return $config;
+	}
 }
 
-function config_item($item)
+if ( ! function_exists('config_item'))
 {
-	$config =& get_config();
-	
-	if ( ! isset($config[$item]))
+	function config_item($item)
 	{
-		return FALSE;
+		$config =& get_config();
+		
+		if ( ! isset($config[$item]))
+		{
+			return FALSE;
+		}
+		
+		return $config[$item];
 	}
-	
-	return $config[$item];
 }
 
 // --------------------------------------------------------------------
 
-function load_class($class, $directory = 'libraries', $prefix = 'CI_')
+if ( ! function_exists('load_class'))
 {
-	if ($directory != 'core' OR $prefix != 'CI_')
-	{
-		throw new Exception('Not Implemented: Non-core load_class()');
-	}
-	
-	$test = CI_TestCase::instance();
-	
-	$obj =& $test->ci_core_class($class);
-	
-	if (is_string($obj))
+	function load_class($class, $directory = 'libraries', $prefix = 'CI_')
 	{
-		throw new Exception('Bad Isolation: Use ci_set_core_class to set '.$class.'');
+		if ($directory != 'core' OR $prefix != 'CI_')
+		{
+			throw new Exception('Not Implemented: Non-core load_class()');
+		}
+		
+		$test = CI_TestCase::instance();
+		
+		$obj =& $test->ci_core_class($class);
+		
+		if (is_string($obj))
+		{
+			throw new Exception('Bad Isolation: Use ci_set_core_class to set '.$class.'');
+		}
+		
+		return $obj;
 	}
-	
-	return $obj;
 }
 
 // This is sort of meh. Should probably be mocked up with
@@ -57,76 +69,103 @@ function load_class($class, $directory = 'libraries', $prefix = 'CI_')
 // bootstrap testsuite.
 // --------------------------------------------------------------------
 
-function remove_invisible_characters($str, $url_encoded = TRUE)
+if ( ! function_exists('remove_invisible_characters'))
 {
-	$non_displayables = array();
-	
-	// every control character except newline (dec 10)
-	// carriage return (dec 13), and horizontal tab (dec 09)
-	
-	if ($url_encoded)
+	function remove_invisible_characters($str, $url_encoded = TRUE)
 	{
-		$non_displayables[] = '/%0[0-8bcef]/';	// url encoded 00-08, 11, 12, 14, 15
-		$non_displayables[] = '/%1[0-9a-f]/';	// url encoded 16-31
-	}
-	
-	$non_displayables[] = '/[\x00-\x08\x0B\x0C\x0E-\x1F\x7F]+/S';	// 00-08, 11, 12, 14-31, 127
+		$non_displayables = array();
+		
+		// every control character except newline (dec 10)
+		// carriage return (dec 13), and horizontal tab (dec 09)
+		
+		if ($url_encoded)
+		{
+			$non_displayables[] = '/%0[0-8bcef]/';	// url encoded 00-08, 11, 12, 14, 15
+			$non_displayables[] = '/%1[0-9a-f]/';	// url encoded 16-31
+		}
+		
+		$non_displayables[] = '/[\x00-\x08\x0B\x0C\x0E-\x1F\x7F]+/S';	// 00-08, 11, 12, 14-31, 127
 
-	do
-	{
-		$str = preg_replace($non_displayables, '', $str, -1, $count);
-	}
-	while ($count);
+		do
+		{
+			$str = preg_replace($non_displayables, '', $str, -1, $count);
+		}
+		while ($count);
 
-	return $str;
+		return $str;
+	}
 }
 
 
 // Clean up error messages
 // --------------------------------------------------------------------
 
-function show_error($message, $status_code = 500, $heading = 'An Error Was Encountered')
+if ( ! function_exists('show_error'))
 {
-	throw new RuntimeException('CI Error: '.$message);
+	function show_error($message, $status_code = 500, $heading = 'An Error Was Encountered')
+	{
+		throw new RuntimeException('CI Error: '.$message);
+	}
 }
 
-function show_404($page = '', $log_error = TRUE)
+if ( ! function_exists('show_404'))
 {
-	throw new RuntimeException('CI Error: 404');
+	function show_404($page = '', $log_error = TRUE)
+	{
+		throw new RuntimeException('CI Error: 404');
+	}
 }
 
-function _exception_handler($severity, $message, $filepath, $line)
+if ( ! function_exists('_exception_handler'))
 {
-	throw new RuntimeException('CI Exception: '.$message.' | '.$filepath.' | '.$line);
+	function _exception_handler($severity, $message, $filepath, $line)
+	{
+		throw new RuntimeException('CI Exception: '.$message.' | '.$filepath.' | '.$line);
+	}
 }
 
 
 // We assume a few things about our environment ...
 // --------------------------------------------------------------------
 
-function is_php($version = '5.0.0')
+if ( ! function_exists('is_php'))
 {
-	return ! (version_compare(PHP_VERSION, $version) < 0);
+	function is_php($version = '5.0.0')
+	{
+		return ! (version_compare(PHP_VERSION, $version) < 0);
+	}
 }
 
-function is_really_writable($file)
+if ( ! function_exists('is_really_writable'))
 {
-	return is_writable($file);
+	function is_really_writable($file)
+	{
+		return is_writable($file);
+	}
 }
 
-function is_loaded()
+if ( ! function_exists('is_loaded'))
 {
-	throw new Exception('Bad Isolation: mock up environment');
+	function is_loaded()
+	{
+		throw new Exception('Bad Isolation: mock up environment');
+	}
 }
 
-function log_message($level = 'error', $message, $php_error = FALSE)
+if ( ! function_exists('log_message'))
 {
-	return TRUE;
+	function log_message($level = 'error', $message, $php_error = FALSE)
+	{
+		return TRUE;
+	}
 }
 
-function set_status_header($code = 200, $text = '')
+if ( ! function_exists('set_status_header'))
 {
-	return TRUE;
+	function set_status_header($code = 200, $text = '')
+	{
+		return TRUE;
+	}
 }
 
 // EOF
\ No newline at end of file
diff --git a/tests/travis/mysql.phpunit.xml b/tests/travis/mysql.phpunit.xml
index 1792ae38d..38c8eba48 100644
--- a/tests/travis/mysql.phpunit.xml
+++ b/tests/travis/mysql.phpunit.xml
@@ -17,10 +17,9 @@
 			<directory suffix="test.php">../codeigniter</directory>
 		</testsuite>
 	</testsuites>
-	<filters>
-		<blacklist>
-			<directory suffix=".php">PEAR_INSTALL_DIR</directory>
-			<directory suffix=".php">PHP_LIBDIR</directory>
-		</blacklist>
-	</filters>
+	<filter>
+        <whitelist addUncoveredFilesFromWhitelist="true">
+            <directory suffix=".php">../../system</directory>
+        </whitelist>
+	</filter>
 </phpunit>
\ No newline at end of file
diff --git a/tests/travis/pdo/mysql.phpunit.xml b/tests/travis/pdo/mysql.phpunit.xml
index 602030d4e..c3113a66f 100644
--- a/tests/travis/pdo/mysql.phpunit.xml
+++ b/tests/travis/pdo/mysql.phpunit.xml
@@ -17,10 +17,9 @@
 			<directory suffix="test.php">../../codeigniter</directory>
 		</testsuite>
 	</testsuites>
-	<filters>
-		<blacklist>
-			<directory suffix=".php">PEAR_INSTALL_DIR</directory>
-			<directory suffix=".php">PHP_LIBDIR</directory>
-		</blacklist>
-	</filters>
+	<filter>
+        <whitelist addUncoveredFilesFromWhitelist="true">
+            <directory suffix=".php">../../../system</directory>
+        </whitelist>
+	</filter>
 </phpunit>
\ No newline at end of file
diff --git a/tests/travis/pdo/pgsql.phpunit.xml b/tests/travis/pdo/pgsql.phpunit.xml
index 77e1493c6..232025523 100644
--- a/tests/travis/pdo/pgsql.phpunit.xml
+++ b/tests/travis/pdo/pgsql.phpunit.xml
@@ -17,10 +17,9 @@
 			<directory suffix="test.php">../../codeigniter</directory>
 		</testsuite>
 	</testsuites>
-	<filters>
-		<blacklist>
-			<directory suffix=".php">PEAR_INSTALL_DIR</directory>
-			<directory suffix=".php">PHP_LIBDIR</directory>
-		</blacklist>
-	</filters>
+	<filter>
+        <whitelist addUncoveredFilesFromWhitelist="true">
+            <directory suffix=".php">../../../system</directory>
+        </whitelist>
+	</filter>
 </phpunit>
\ No newline at end of file
diff --git a/tests/travis/pdo/sqlite.phpunit.xml b/tests/travis/pdo/sqlite.phpunit.xml
index cdccef017..3d1256721 100644
--- a/tests/travis/pdo/sqlite.phpunit.xml
+++ b/tests/travis/pdo/sqlite.phpunit.xml
@@ -17,10 +17,9 @@
 			<directory suffix="test.php">../../codeigniter</directory>
 		</testsuite>
 	</testsuites>
-	<filters>
-		<blacklist>
-			<directory suffix=".php">PEAR_INSTALL_DIR</directory>
-			<directory suffix=".php">PHP_LIBDIR</directory>
-		</blacklist>
-	</filters>
+	<filter>
+        <whitelist addUncoveredFilesFromWhitelist="true">
+            <directory suffix=".php">../../../system</directory>
+        </whitelist>
+	</filter>
 </phpunit>
\ No newline at end of file
diff --git a/tests/travis/pgsql.phpunit.xml b/tests/travis/pgsql.phpunit.xml
index dfc1bff1c..51e433d76 100644
--- a/tests/travis/pgsql.phpunit.xml
+++ b/tests/travis/pgsql.phpunit.xml
@@ -17,10 +17,9 @@
 			<directory suffix="test.php">../codeigniter</directory>
 		</testsuite>
 	</testsuites>
-	<filters>
-		<blacklist>
-			<directory suffix=".php">PEAR_INSTALL_DIR</directory>
-			<directory suffix=".php">PHP_LIBDIR</directory>
-		</blacklist>
-	</filters>
+	<filter>
+        <whitelist addUncoveredFilesFromWhitelist="true">
+            <directory suffix=".php">../../system</directory>
+        </whitelist>
+	</filter>
 </phpunit>
\ No newline at end of file
diff --git a/tests/travis/sqlite.phpunit.xml b/tests/travis/sqlite.phpunit.xml
index 3223da5e7..701165734 100644
--- a/tests/travis/sqlite.phpunit.xml
+++ b/tests/travis/sqlite.phpunit.xml
@@ -17,10 +17,9 @@
 			<directory suffix="test.php">../codeigniter</directory>
 		</testsuite>
 	</testsuites>
-	<filters>
-		<blacklist>
-			<directory suffix=".php">PEAR_INSTALL_DIR</directory>
-			<directory suffix=".php">PHP_LIBDIR</directory>
-		</blacklist>
-	</filters>
+	<filter>
+        <whitelist addUncoveredFilesFromWhitelist="true">
+            <directory suffix=".php">../../system</directory>
+        </whitelist>
+	</filter>
 </phpunit>
\ No newline at end of file
diff --git a/user_guide_src/source/changelog.rst b/user_guide_src/source/changelog.rst
index 4b8a0f2d3..a234d6969 100644
--- a/user_guide_src/source/changelog.rst
+++ b/user_guide_src/source/changelog.rst
@@ -220,6 +220,7 @@ Bug fixes for 3.0
 -  Fixed a bug (#121) - ``CI_DB_result::row()`` returned an array when there's no actual result to be returned.
 -  Fixed a bug (#319) - SQLSRV's affected_rows() method failed due to a scrollable cursor being created for write-type queries.
 -  Fixed a bug (#356) - PostgreSQL driver didn't have an _update_batch() method, which resulted in fatal error being triggered when update_batch() is used with it.
+-  Fixed a bug (#862) - create_table() failed on SQLSRV/MSSQL when used with 'IF NOT EXISTS'.
 
 Version 2.1.1
 =============