Class: Testprune::PatchWriter

Inherits:
Object
  • Object
show all
Defined in:
lib/testprune/patch_writer.rb

Overview

Emits a git-applyable patch that comments out the approved tests. Locates each test’s exact AST block (def or ‘it`/`describe` block) with Prism, comments those lines, and diffs against the original via `git diff –no-index`. Writes only the .patch file — never mutates the target source.

Instance Method Summary collapse

Constructor Details

#initialize(config) ⇒ PatchWriter

Returns a new instance of PatchWriter.



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# File 'lib/testprune/patch_writer.rb', line 15

def initialize(config)
  @config = config
end

Instance Method Details

#write(candidates) ⇒ Object 



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# File 'lib/testprune/patch_writer.rb', line 19

def write(candidates)
  FileUtils.mkdir_p(@config.output_dir)
  patch = candidates.group_by { |c| c.footprint.file }
                    .map { |file, group| file_patch(file, group) }
                    .compact.join
  File.write(@config.patch_file, patch)
  @config.patch_file
end