org.junit.contrib.java.lang.system
Interfaces 
Assertion
Classes 
ClearSystemProperties
DisallowWriteToSystemErr
DisallowWriteToSystemOut
EnvironmentVariables
ExpectedSystemExit
ProvideSecurityManager
ProvideSystemProperty
RestoreSystemProperties
StandardErrorStreamLog
StandardOutputStreamLog
SystemErrRule
SystemOutRule
TextFromStandardInputStream
Enums 
LogMode