Class: Mutante::SpecFinder

Inherits:
Object
  • Object
show all
Defined in:
lib/mutante/spec_finder.rb

Overview

Resolves which spec file(s) to run for a given source file.

Priority:

1. Explicit mapping from Configuration#test_mappings.
2. Mirrored path under spec/ (app/foo/bar.rb -> spec/foo/bar_spec.rb).
3. Nil, meaning "fall back to the whole suite".

Constant Summary collapse

PLACEHOLDER_RE = 
/\{(basename|relative|relative_dir)\}/

Instance Method Summary collapse

Constructor Details

#initialize(configuration) ⇒ SpecFinder

Returns a new instance of SpecFinder.



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# File 'lib/mutante/spec_finder.rb', line 11

def initialize(configuration)
  @configuration = configuration
  @root          = configuration.root
end

Instance Method Details

#call(source_file) ⇒ Object

Returns an Array of spec file paths (relative to the project root), or nil to indicate the whole test suite should be used.



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# File 'lib/mutante/spec_finder.rb', line 18

def call(source_file)
  rel = relative(source_file)

  mapping = matching_mapping(rel)
  if mapping
    paths = expand(mapping, rel)
    existing = paths.select { |p| File.exist?(File.join(@root, p)) }
    return existing unless existing.empty?
  end

  mirror = mirrored_spec(rel)
  return [mirror] if mirror && File.exist?(File.join(@root, mirror))

  nil
end