Class: MissCleo::CoverageMap

Inherits:
Object
  • Object
show all
Defined in:
lib/miss_cleo/coverage_map.rb

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(map = nil) ⇒ CoverageMap

Returns a new instance of CoverageMap.



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# File 'lib/miss_cleo/coverage_map.rb', line 23

def initialize(map = nil)
  @map = map || Hash.new { |h, file| h[file] = Hash.new { |i, line| i[line] = [] } }
end

Instance Attribute Details

#map ⇒ Object (readonly)

Returns the value of attribute map.



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# File 'lib/miss_cleo/coverage_map.rb', line 21

def map
  @map
end

Class Method Details

.build(file_names) ⇒ Object 



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# File 'lib/miss_cleo/coverage_map.rb', line 4

def self.build(file_names)
  cov_map = self.new
  file_names.each do |file_name|
    File.open(file_name, "r") do |f|
      f.read
    end.tap do |contents|
      begin
        cov_map.add_to_coverage_map(JSON.parse(contents))
      rescue
        puts "#{file_name} is malformed, this may affect test predictons"
      end
    end
  end

  cov_map
end

Instance Method Details

#add_to_coverage_map(test_diffs) ⇒ Object 



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# File 'lib/miss_cleo/coverage_map.rb', line 27

def add_to_coverage_map(test_diffs)
  test_diffs.each do |test_to_code_map|
    test_file_and_line = test_to_code_map.first
    before = test_to_code_map.last["before"]
    after = test_to_code_map.last["after"]
    templates = test_to_code_map.last["templates"]

    # calculate the per test coverage
    delta = diff before, after
    add_delta_to_map(delta, test_file_and_line)
    add_templates_to_map(templates, test_file_and_line)
  end

  nil
end

#tests_for_lines(file, line) ⇒ Object 



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# File 'lib/miss_cleo/coverage_map.rb', line 43

def tests_for_lines(file, line)
  begin
    # NOTE: This is currently how templates and non-templates are being
    # split. Since I will likely have to cover a bunch of blind spots
    # manually like this, this probably needs to be rearchitected.
    if file.include?("app/views")
      map[file]["0"].uniq || []
    else
      map[file][line.to_s].uniq || []
    end
  rescue
    []
  end
end