RuboCop RSpec v1.7.0

• Add support for checking all example groups with ExampleLength. (@backus)
• Add support for checking shared example groups for DescribedClass. (@backus)
• Add support for checking its from rspec-its. (@backus)
• Add EmptyExampleGroup cop for detecting describes and contexts without any tests inside. (@backus)
• Add CustomIncludeMethods configuration option for EmptyExampleGroup. (@backus)
• Add NestedGroups cop for detecting excessive example group nesting. (@backus)
• Add MaxNesting configuration option for NestedGroups cop. (@backus)
• Add ExpectActual cop for detecting literal values within expect(...). (@backus)
• Add MultipleExpectations cop for detecting multiple expect(...) calls within one example. (@backus)
• Add Max configuration option for MultipleExpectations. (@backus)
• Add SubjectStub cop for testing stubbed test subjects. (@backus)
• Add LetSetup cop for detecting cases where let! is used for test setup. (@backus)
• Change all cops to only inspect files with names following rspec convention (*/spec/* and/or _spec.rb). (@backus)
• Add AllCops/RSpec configuration option for specifying custom spec file patterns. (@backus)
• Add AssignmentOnly configuration option for RSpec/InstanceVariable cop. (@backus)
• Add BeEql cop which looks for expectations that can use be(...) instead of eql(...). (@backus)
• Add autocorrect support for BeEql cop. (@backus)
• Add MessageExpectation cop for enforcing consistent style of either expect(...).to receive or allow(...).to receive. (@backus)
• Add MessageChain cop. (@bquorning)