Option (Test\Option)
 [x] Get succeeds for Some
 [x] Get fails for None
 [x] IsNone succeeds with None
 [x] IsNone succeeds with Some
 [x] IsSome succeeds with None
 [x] IsSome succeeds with Some
 [x] GetOrDefault succeeds with None
 [x] GetOrDefault succeeds with Some
 [x] GetOrCall succeeds with None
 [x] GetOrCall succeeds with Some
 [x] Map succeeds with None
 [x] Map succeeds with Some
 [x] Map fails with Some when mapping is null
 [x] Iter succeeds with None
 [x] Iter succeeds with Some
 [x] Filter succeeds with None
 [x] Filter succeeds with Some when true
 [x] Filter succeeds with Some when false
 [x] Is succeeds with None
 [x] Is succeeds with Some when strictly equal
 [x] Is succeeds with Some when strictly unequal
 [x] Is succeeds with Some when loosely equal
 [x] Is succeeds with Some when loosely unequal
 [x] Unwrap succeeds with None
 [x] Unwrap succeeds with Some
 [x] Tap succeeds with Some
 [x] Tap succeeds with None
 [x] ToPhpOption succeeds for Some
 [x] ToPhpOption succeeds for None
 [x] Some succeeds with value
 [x] Some fails with null
 [x] None succeeds
 [x] Of succeeds with null
 [x] Of succeeds with non null
 [x] Of succeeds with PhpOption\Some
 [x] Of succeeds with PhpOption\None

Result (Test\Result)
 [x] GetOK succeeds for OK result
 [x] GetOK fails for Error result
 [x] GetError succeeds for Error result
 [x] GetError fails for OK result
 [x] IsOK succeeds for OK result
 [x] IsOK succeeds for Error result
 [x] IsError succeeds for Error result
 [x] IsError succeeds for OK result
 [x] Map succeeds for OK result
 [x] Map fails for OK result when mapping is null
 [x] Map succeeds for Error result
 [x] MapError succeeds for OK result
 [x] MapError succeeds for Error result
 [x] MapError fails for Error result when mapping is null
 [x] Iter succeeds for OK result
 [x] Iter succeeds for Error result
 [x] ToOption succeeds for OK result
 [x] ToOption succeeds for Error result
 [x] Tap succeeds for OK result
 [x] Tap succeeds for Error result
 [x] OK succeeds for non null result
 [x] OK fails for null result
 [x] Error succeeds for non null result
 [x] Error fails for null result