MDL-55091 phpunit: Following has been deprecated.

1. getMock()
2. setExpectedException()
3. checkForUnintentionallyCoveredCode renamed to beStrictAboutCoversAnnotation
4. beStrictAboutTestSize renamed to enforceTimeLimit
5. UnitTestCase class is now fully removed.

lib/phpunit/tests/advanced_test.php

@@ -296,7 +296,7 @@ class core_phpunit_advanced_testcase extends advanced_testcase {
         } catch (moodle_exception $e) {
             $this->assertInstanceOf('dml_exception', $e);
         }
-        $DB = $this->getMock(get_class($DB));
+        $DB = $this->createMock(get_class($DB));
         $this->assertNull($DB->get_record('pokus', array()));
         // Rest continues after reset.
     }