Expanded class hierarchy of SystemValidTokenTest

class \DrupalTestCase
- class \DrupalUnitTestCase
  - class \ArrayDiffUnitTest
  - class \BatchPercentagesUnitTestCase
  - class \BlockTemplateSuggestionsUnitTest
  - class \BootstrapGetFilenameTestCase
  - class \BootstrapMiscTestCase
  - class \BootstrapOverrideServerVariablesTestCase
  - class \BootstrapResettableStaticTestCase
  - class \BootstrapTimerTestCase
  - class \CascadingStylesheetsUnitTest
  - class \CommonSizeTestCase
  - class \CommonXssUnitTest
  - class \ConnectionUnitTest
  - class \DrupalAttributesUnitTest
  - class \DrupalHTMLIdentifierTestCase
  - class \DrupalJSONTest
  - class \DrupalTagsHandlingTestCase
  - class \FilterUnitTestCase
  - class \GraphUnitTest
  - class \ImageDimensionsScaleTestCase
  - class \InfoFileParserTestCase
  - class \LocaleBrowserDetectionTest
  - class \MenuTreeDataTestCase
  - class \ParseInfoFilesTestCase
  - class \SearchExpressionInsertExtractTestCase
  - class \SimpleTestMissingDependentModuleUnitTest
  - class \SystemValidTokenTest
  - class \TableSortTest
  - class \ThemeHtmlTag
  - class \UnicodeUnitTest
  - class \UpdateCoreUnitTestCase
  - class \ValidUrlTestCase
- class \DrupalWebTestCase