diff --git a/core/modules/simpletest/lib/Drupal/simpletest/WebTestBase.php b/core/modules/simpletest/lib/Drupal/simpletest/WebTestBase.php
index ebadf43..d9ff325 100644
--- a/core/modules/simpletest/lib/Drupal/simpletest/WebTestBase.php
+++ b/core/modules/simpletest/lib/Drupal/simpletest/WebTestBase.php
@@ -2205,10 +2205,9 @@ protected function assertNoText($text, $message = '', $group = 'Other') {
    *   messages: use format_string() to embed variables in the message text, not
    *   t(). If left blank, a default message will be displayed.
    * @param $group
-   *   (optional) The group this message is in, which is displayed in a column
-   *   in test output. Use 'Debug' to indicate this is debugging output. Do not
-   *   translate this string. Defaults to 'Other'; most tests do not override
-   *   this default.
+   *   (optional) The group this message is in, which is displayed in a colum in
+   *   test output. Use 'Debug' to indicate this is debugging output. Do not
+   *   translate this string.
    * @param $not_exists
    *   TRUE if this text should not exist, FALSE if it should.
    * @return
@@ -2288,10 +2287,10 @@ protected function assertNoUniqueText($text, $message = '', $group = 'Other') {
    * @param $group
    *   (optional) The group this message is in, which is displayed in a column
    *   in test output. Use 'Debug' to indicate this is debugging output. Do not
-   *   translate this string. Defaults to 'Other'; most tests do not override
-   *   this default.
+   *   translate this string.
    * @param $be_unique
-   *   TRUE if this text should be found only once, FALSE if it should be found more than once.
+   *   TRUE if this text should be found only once, FALSE if it should be found
+   *   more than once.
    * @return
    *   TRUE on pass, FALSE on fail.
    */
@@ -2427,7 +2426,8 @@ protected function assertNoTitle($title, $message = '', $group = 'Other') {
    * @param $message
    *   (optional) A message to display with the assertion. Do not translate
    *   messages: use format_string() to embed variables in the message text, not
-   *   t(). If left blank, a default message will be displayed.
+   *   t(). "%callback" in $message will be replaced by "theme_$callback" in the
+   *   output. If left blank, a default message will be displayed.
    *
    * @return
    *   TRUE on pass, FALSE on fail.
@@ -2573,11 +2573,6 @@ protected function assertNoFieldByXPath($xpath, $value = NULL, $message = '', $g
    *   (optional) A message to display with the assertion. Do not translate
    *   messages: use format_string() to embed variables in the message text, not
    *   t(). If left blank, a default message will be displayed.
-   * @param $group
-   *   (optional) The group this message is in, which is displayed in a column
-   *   in test output. Use 'Debug' to indicate this is debugging output. Do not
-   *   translate this string. Defaults to 'Other'; most tests do not override
-   *   this default.
    * @return
    *   TRUE on pass, FALSE on fail.
    */
@@ -2609,11 +2604,6 @@ protected function assertFieldByName($name, $value = NULL, $message = NULL) {
    *   (optional) A message to display with the assertion. Do not translate
    *   messages: use format_string() to embed variables in the message text, not
    *   t(). If left blank, a default message will be displayed.
-   * @param $group
-   *   (optional) The group this message is in, which is displayed in a column
-   *   in test output. Use 'Debug' to indicate this is debugging output. Do not
-   *   translate this string. Defaults to 'Other'; most tests do not override
-   *   this default.
    * @return
    *   TRUE on pass, FALSE on fail.
    */
@@ -2632,11 +2622,6 @@ protected function assertNoFieldByName($name, $value = '', $message = '') {
    *   (optional) A message to display with the assertion. Do not translate
    *   messages: use format_string() to embed variables in the message text, not
    *   t(). If left blank, a default message will be displayed.
-   * @param $group
-   *   (optional) The group this message is in, which is displayed in a column
-   *   in test output. Use 'Debug' to indicate this is debugging output. Do not
-   *   translate this string. Defaults to 'Other'; most tests do not override
-   *   this default.
    * @return
    *   TRUE on pass, FALSE on fail.
    */
@@ -2971,6 +2956,10 @@ protected function assertMailString($field_name, $string, $email_depth) {
    *   Name of field or message property to assert: subject, body, id, ...
    * @param $regex
    *   Pattern to search for.
+   * @param $message
+   *   (ignored) A message to display with the assertion. Do not translate
+   *   messages: use format_string() to embed variables in the message text, not
+   *   t().
    *
    * @return
    *   TRUE on pass, FALSE on fail.