diff --git a/classes/local/outagelib.php b/classes/local/outagelib.php
index 42be2f5..9b532b2 100644
--- a/classes/local/outagelib.php
+++ b/classes/local/outagelib.php
@@ -422,9 +422,6 @@ EOT;
      * @param outage|null $outage Outage or null if no scheduled outage.
      */
     private static function maintenance_config_log(outage $outage) {
-        // Not output logging info in php unit test.
-        if (PHPUNIT_TEST) return;
-
         mtrace(get_string('logformaintmodeconfig', 'auth_outage'));
         $timezone = ' (Timezone ' . \core_date::get_server_timezone_object()->getName() . ')';
         mtrace('... updated at ' . date('H:i:s'));
diff --git a/tests/phpunit/installation_test.php b/tests/phpunit/installation_test.php
index 1c5936b..bd54723 100644
--- a/tests/phpunit/installation_test.php
+++ b/tests/phpunit/installation_test.php
@@ -63,7 +63,11 @@ class auth_outage_installation_test extends auth_outage_base_testcase {
             'title' => 'Title',
             'description' => 'Description',
         ]);
+        ob_start();
         \auth_outage\dml\outagedb::save($outage);
+        $text = trim(ob_get_contents());
+        ob_end_clean();
+        self::assertStringContainsString('Update maintenance mode configuration', $text);
         self::assertSame(1, $DB->count_records_select('event', "eventtype = 'auth_outage'", null));
 
         // Uninstall plugin.
diff --git a/tests/phpunit/local/cli/create_test.php b/tests/phpunit/local/cli/create_test.php
index b293c97..61e9163 100644
--- a/tests/phpunit/local/cli/create_test.php
+++ b/tests/phpunit/local/cli/create_test.php
@@ -159,8 +159,8 @@ class auth_outage_create_test extends auth_outage_cli_testcase {
         $text = $this->execute($cli);
         self::assertStringContainsString('created', $text);
         // Check creted outage.
-        list(, $id) = explode(':', $text);
-        $id = (int)$id;
+        $clioutput = explode(':', $text);
+        $id = (int)end($clioutput);
         $outage = outagedb::get_by_id($id);
         self::assertSame($now, $outage->starttime);
         self::assertSame(10, $outage->get_warning_duration());
@@ -223,8 +223,8 @@ class auth_outage_create_test extends auth_outage_cli_testcase {
         $text = $this->execute($cli);
         self::assertStringContainsString('created', $text);
         // Check creted outage.
-        list(, $id) = explode(':', $text);
-        $id = (int)$id;
+        $clioutput = explode(':', $text);
+        $id = (int)end($clioutput);
         $outage = outagedb::get_by_id($id);
         self::assertSame($now + 50, $outage->starttime, 'Wrong starttime.');
         self::assertSame($outage->starttime - 100, $outage->warntime, 'Wrong warntime.');
diff --git a/tests/phpunit/local/outagelib_test.php b/tests/phpunit/local/outagelib_test.php
index 942fa1b..9fae62d 100644
--- a/tests/phpunit/local/outagelib_test.php
+++ b/tests/phpunit/local/outagelib_test.php
@@ -60,7 +60,11 @@ class auth_outage_outagelib_test extends auth_outage_base_testcase {
         ]);
 
         set_config('maintenance_message', 'A message.');
+        ob_start();
         outagedb::save($outage);
+        $text = trim(ob_get_contents());
+        ob_end_clean();
+        self::assertStringContainsString('Update maintenance mode configuration', $text);
         self::assertFalse((bool)get_config('moodle', 'maintenance_message'));
         self::assertCount(2, $this->getDebuggingMessages());
         $this->resetDebugging();
@@ -94,7 +98,11 @@ class auth_outage_outagelib_test extends auth_outage_base_testcase {
             'title' => 'Title',
             'description' => 'Description',
         ]);
+        ob_start();
         $outage->id = outagedb::save($outage);
+        $text = trim(ob_get_contents());
+        ob_end_clean();
+        self::assertStringContainsString('Update maintenance mode configuration', $text);
 
         outagelib::reset_injectcalled();
         // Get full header to avoid interactions with other single inject plugins.
@@ -136,7 +144,11 @@ class auth_outage_outagelib_test extends auth_outage_base_testcase {
             'title' => 'Title',
             'description' => 'Description',
         ]);
+        ob_start();
         $outage->id = outagedb::save($outage);
+        $text = trim(ob_get_contents());
+        ob_end_clean();
+        self::assertStringContainsString('Update maintenance mode configuration', $text);
 
         $_GET = ['auth_outage_preview' => (string)$outage->id];
 
@@ -175,8 +187,11 @@ class auth_outage_outagelib_test extends auth_outage_base_testcase {
             'title' => 'Title',
             'description' => 'Description',
         ]);
+        ob_start();
         $outage->id = outagedb::save($outage);
-
+        $text = trim(ob_get_contents());
+        ob_end_clean();
+        self::assertStringContainsString('Update maintenance mode configuration', $text);
         $_GET = ['auth_outage_preview' => (string)$outage->id, 'auth_outage_delta' => '500'];
         outagelib::reset_injectcalled();
         $header = outagelib::get_inject_code();
@@ -282,7 +297,11 @@ class auth_outage_outagelib_test extends auth_outage_base_testcase {
             'title' => 'Title',
             'description' => 'Description',
         ]);
+        ob_start();
         $outage->id = outagedb::save($outage);
+        $text = trim(ob_get_contents());
+        ob_end_clean();
+        self::assertStringContainsString('Update maintenance mode configuration', $text);
 
         // Pretend we are there...
         $_SERVER['SCRIPT_FILENAME'] = '/var/www/alternativepath/admin/settings.php'; // Issue #88 regression test.
@@ -538,8 +557,11 @@ EOT;
             'title' => 'Title',
             'description' => 'Description',
         ]);
+        ob_start();
         $outage->id = outagedb::save($outage);
-
+        $text = trim(ob_get_contents());
+        ob_end_clean();
+        self::assertStringContainsString('Update maintenance mode configuration', $text);
         // Pretend we are there...
         $_SERVER['SCRIPT_FILENAME'] = '/var/www/alternativepath/admin/settings.php'; // Issue #88 regression test.
         $_SERVER['SCRIPT_NAME'] = '/admin/settings.php';