Coding Standards

• No duplication (including tests)
• No commented out code
• Methods have 10 or fewer lines - Including test methods
• Methods have 3 or fewer parameters
• Classes have 7 or fewer public members (Single Responsibility)
• No method calls or logic in constructors
• No checked exceptions (Java)
• Classes are named using a noun or noun phrase
• Methods are named using a verb or verb phrase
• Variable and field names are pronounceable
• Only 1 level of inheritance
• Only inherit from abstract or interfaces
• No name decorations (FooImpl.java)
• No getter/setters on Interfaces
• No constant interfaces
• No public constants
• Query methods don't throw exceptions
• Query methods don't change state
• Command methods change state
• Command methods throw expections when state is unable to be changed
• Factory methods over constructors

Unit Test Standards

• No assertNotNull()
• No @Ignore tests
• 3 or fewer assertions per test method
• No mocked static methods
• Arrange, Act, Assert
• No uncovered lines
• Prefer state based testing: Prefer stubs over mocks