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muttest 0.2.0

• ❗️ Renamed plan() to muttest_plan().
• ✨ Add new mutators:
  • boolean_literal(), na_literal() — literal replacement mutators.
  • negate_condition(), remove_condition_negation() — condition mutators.
  • numeric_increment(), numeric_decrement(), index_increment(), index_decrement() — increment/decrement mutators.
  • string_empty(), string_fill() — string mutators.
  • call_name() — call name mutator.
  • remove_negation() — unary negation mutator.
  • replace_return_value() — return value mutator.
  • delete_statement() — removes assignments and standalone calls one at a time to catch untested side effects and dead assignments.
• ✨ Add preset collections for all major mutator groups:
  • boolean_literals() — flips TRUE/FALSE and T/F.
  • na_literals() — swaps NA, NULL, and typed NA variants.
  • numeric_literals() — increments and decrements numeric constants.
  • index_mutations() — shifts subscript indices up and down by one.
  • string_literals() — empties non-empty strings and fills empty ones.
  • condition_mutations() — negates conditions and removes existing negations.
  • arithmetic_operators() — mutates arithmetic operators (+, -, *, /, ^, %%, %/%).
  • comparison_operators() — mutates comparison operators (<, >, <=, >=, ==, !=).
  • logical_operators() — mutates logical operators (&, |, &&, ||).
• ✨ Mutators are now parametrized and accept configuration arguments.
• ✨ ProgressMutationReporter now reports survived mutants.
• ✨ Expose Mutator base class for building custom mutators.
• ✨ muttest() supports parallel execution of mutants.
• ✨ muttest() supports per-mutant timeouts to avoid hanging test runs.
• 🥅 Improved error handling when test execution fails.

muttest 0.1.0

• ✨ Create a testing plan with plan.
• ✨ Run mutation testing with muttest.
• ✨ Support mutating operators with operator.
• ✨ Control copying project to temporary directory with CopyStrategy:
  • PackageCopyStrategy implemented for copying package files.
• ✨ Control test execution for each mutant with TestStrategy:
  • FullTestStrategy for running all tests for each mutant.
  • FileTestStrategy for running only test files matching mutant files.
• ✨ See test results with MutationReporter.
  • ProgressMutationReporter for printing progress to the console.

These binaries (installable software) and packages are in development.
They may not be fully stable and should be used with caution. We make no claims about them.