Metrics to mine

[Dahny]

General Test-Refactoring info:
Miner Info:

• RefactoringType
• RefactoringSummary

Diff Metrics:

• Number of lines in the diff

Meta info:

• Project Name
• Commit Hash
• Parent Commit Hash
• Method Name (if available)
• Class Name
• File location
• Commit Date
• Commit Message

Extract-Method Refactoring:
Class-level metrics (before and after):

• LOC
• Number of Methods
• Number of Attributes
• Number of Method Invocations
• WMC
  Lifetime of class:
• When was it created
• When was the method added
• Every commit date when the class was changed

Method-level Metrics (related to the origin method):

• LOC
• Complexity
• Coupling
• contains an assertion

The extracted piece of code:

• Complexity
• LOC
• Contains an Assertion
• ReplacementType

All the "General Test-Refactoring info" will also be included in the "Extract-Method Refactoring" info