Class: Evilution::Reporter::Suggestion

Inherits:
Object
  • Object
show all
Defined in:
lib/evilution/reporter/suggestion.rb

Constant Summary collapse

TEMPLATES = 
{
  "comparison_replacement" => "Add a test for the boundary condition where the comparison operand equals the threshold exactly",
  "arithmetic_replacement" => "Add a test that verifies the arithmetic result, not just truthiness of the outcome",
  "boolean_operator_replacement" => "Add a test where only one of the boolean conditions is true to distinguish && from ||",
  "boolean_literal_replacement" => "Add a test that exercises the false/true branch explicitly",
  "nil_replacement" => "Add a test that asserts the return value is not nil",
  "integer_literal" => "Add a test that checks the exact numeric value, not just > 0 or truthy",
  "float_literal" => "Add a test that checks the exact floating-point value returned",
  "string_literal" => "Add a test that asserts the string content, not just its presence",
  "array_literal" => "Add a test that verifies the array contents or length",
  "hash_literal" => "Add a test that verifies the hash keys and values",
  "symbol_literal" => "Add a test that checks the exact symbol returned",
  "conditional_negation" => "Add tests for both the true and false branches of this conditional",
  "conditional_branch" => "Add a test that exercises the removed branch of this conditional",
  "statement_deletion" => "Add a test that depends on the side effect of this statement",
  "method_body_replacement" => "Add a test that checks the method's return value or side effects",
  "negation_insertion" => "Add a test where the predicate result matters (not just truthiness)",
  "return_value_removal" => "Add a test that uses the return value of this method",
  "collection_replacement" => "Add a test that checks the return value of the collection operation, not just side effects",
  "method_call_removal" => "Add a test that depends on the return value or side effect of this method call",
  "argument_removal" => "Add a test that verifies the correct arguments are passed to this method call"
}.freeze
DEFAULT_SUGGESTION = 
"Add a more specific test that detects this mutation"

Instance Method Summary collapse

Instance Method Details

#call(summary) ⇒ Array<Hash>

Generate suggestions for survived mutations.

Parameters:

Returns:

  • (Array<Hash>) —

    Array of { mutation:, suggestion: }



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# File 'lib/evilution/reporter/suggestion.rb', line 35

def call(summary)
  summary.survived_results.map do |result|
    {
      mutation: result.mutation,
      suggestion: suggestion_for(result.mutation)
    }
  end
end

#suggestion_for(mutation) ⇒ String

Generate a suggestion for a single mutation.

Parameters:

Returns:

  • (String) 


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# File 'lib/evilution/reporter/suggestion.rb', line 48

def suggestion_for(mutation)
  TEMPLATES.fetch(mutation.operator_name, DEFAULT_SUGGESTION)
end