Explictly require ert in some test/automated/*.el files

* automated/add-log-tests.el, automated/advice-tests.el:
* automated/imenu-test.el, automated/python-tests.el:
* automated/ruby-mode-tests.el, automated/xml-parse-tests.el:
Explictly require ert.

test/ChangeLog

@@ -1,3 +1,10 @@
+2013-07-09  Glenn Morris  <rgm@gnu.org>
+
+	* automated/add-log-tests.el, automated/advice-tests.el:
+	* automated/imenu-test.el, automated/python-tests.el:
+	* automated/ruby-mode-tests.el, automated/xml-parse-tests.el:
+	Explictly require ert.
+
 2013-07-08  Kenichi Handa  <handa@gnu.org>
 
 	* automated/decoder-tests.el (decoder-tests-prefer-utf-8-read):

test/automated/add-log-tests.el

@@ -22,6 +22,7 @@
 
 ;;; Code:
 
+(require 'ert)
 (require 'add-log)
 
 (defmacro add-log-current-defun-deftest (name doc major-mode

test/automated/advice-tests.el

@@ -21,6 +21,8 @@
 
 ;;; Code:
 
+(require 'ert)
+
 (ert-deftest advice-tests-nadvice ()
   "Test nadvice code."
   (defun sm-test1 (x) (+ x 4))

test/automated/imenu-test.el

@@ -22,6 +22,7 @@
 
 ;;; Code:
 
+(require 'ert)
 (require 'imenu)
 
 ;; (imenu-simple-scan-deftest-gather-strings-from-list

test/automated/package-x-test.el

@@ -35,6 +35,7 @@
 (require 'package-x)
 (require 'ert)
 (require 'cl-lib)
+(eval-when-compile (require 'package-test))
 
 ;; package-test is not normally in `load-path', so temporarily set
 ;; `load-path' to contain the current directory.

test/automated/python-tests.el

@@ -21,6 +21,7 @@
 
 ;;; Code:
 
+(require 'ert)
 (require 'python)
 
 (defmacro python-tests-with-temp-buffer (contents &rest body)

test/automated/ruby-mode-tests.el

@@ -21,6 +21,7 @@
 
 ;;; Code:
 
+(require 'ert)
 (require 'ruby-mode)
 
 (defun ruby-should-indent (content column)

test/automated/xml-parse-tests.el

@@ -27,6 +27,7 @@
 
 ;;; Code:
 
+(require 'ert)
 (require 'xml)
 
 (defvar xml-parse-tests--data