Index: drush_simpletest.module
===================================================================
--- drush_simpletest.module	(revision 884)
+++ drush_simpletest.module	(working copy)
@@ -12,9 +12,13 @@
 function drush_simpletest_help($section) {
   switch ($section) {
       case 'drush:test run':
-        return t("Usage drush [options] test run<classes>.\n\nRun the specified specified unit tests. If <classes> is omitted, all tests are run. <classes> should be a list of classes separated by a comma. For example: PageCreationTest,PageViewTest.");
+        return t("Usage drush [options] test run <classes>.\n\nRun the specified unit tests. If <classes> is omitted, all tests are run. <classes> should be a list of classes separated by a comma. For example: PageCreationTest,PageViewTest.");
       case 'drush:test list':
         return t("Usage drush [options] test list.\n\nList the available tests. Use drush test run command to run them. ");
+      case 'drush:test group':
+        return t("Usage drush [options] test group <groups>.\n\nRun all unit tests in the specified groups. For example: drush test group Group1,Group2");
+      case 'drush:test re':
+        return t("Usage drush [options] test re <regular expression>.\n\nRun all unit tests matching this regular expression. For example: drush test re Page.*");
   }
 }
 
@@ -30,10 +34,18 @@
     'callback' => 'drush_test_list',
     'description' => 'List the available Simpletest test classes.',
   );
+  $items['test re'] = array(
+    'callback' => 'drush_test_re',
+    'description' => 'Run one or more Simpletest tests based on regular expressions.',
+  );
+  $items['test group'] = array(
+    'callback' => 'drush_test_group',
+    'description' => 'Run one or more Simpletest test groups.',
+  );
   return $items;
 }
 
-function drush_test_list() {
+function drush_test_get_list() {
   simpletest_load();
   // TODO: Refactor simpletest.module so we don't copy code from DrupalUnitTests
   $files = array();
@@ -60,6 +72,11 @@
       $rows[] = array($class, $info['name'], truncate_utf8($info['desc'], 30, TRUE, TRUE));
     }
   }
+  return $rows;
+}
+
+function drush_test_list() {
+  $rows = drush_test_get_list();
   return drush_print_table($rows, 0, TRUE);
 }
 
@@ -75,3 +92,31 @@
   }
   return $result;
 }
+
+function drush_test_re($expression) {
+  if (!$expression) {
+    die('You must specify a regular expression.');
+  }
+  $rows = drush_test_get_list();
+  $tests = array();
+  foreach ($rows as $row) {
+    if (ereg($expression, $row[0])) {
+      $tests[] = $row[0];
+    }
+  }
+  simpletest_run_tests($tests, 'text');
+  return $result;
+}
+
+function drush_test_group($groups) {
+  $rows = drush_test_get_list();
+  $tests = array();
+  $groups = explode(',', $groups);
+  foreach ($rows as $row) {
+    if (in_array($row[1], $groups)) {
+      $tests[] = $row[0];
+    }
+  }
+  simpletest_run_tests($tests, 'text');
+  return $result;
+}