class MissCleo::CoverageMap
Attributes
map[R]
Public Class Methods
build(file_names)
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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
new(map = nil)
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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
Public Instance Methods
add_to_coverage_map(test_diffs)
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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)
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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
Private Instance Methods
add_delta_to_map(delta, test_file_and_line)
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# File lib/miss_cleo/coverage_map.rb, line 81 def add_delta_to_map(delta, test_file_and_line) delta.each_pair do |file, lines| file_map = map[file] lines.each_with_index do |val, i| # skip lines that weren't executed next unless val && val > 0 # add the test name to the map. Multiple tests can execute the same # line, so we need to use an array. file_map[i + 1] << test_file_and_line end end end
add_templates_to_map(templates, test_file_and_line)
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# File lib/miss_cleo/coverage_map.rb, line 96 def add_templates_to_map(templates, test_file_and_line) templates.each do |template| # NOTE: Currently templates do not know how many lines of code they # are. I have temporarily decided to shove them into the 0 line # to make them a special case. This will probably require # re-architecting map[template][0] << test_file_and_line end end
diff(before, after)
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# File lib/miss_cleo/coverage_map.rb, line 60 def diff before, after after.each_with_object({}) do |(file_name,line_cov), res| before_line_cov = before[file_name] || [] # skip arrays that are exactly the same next if before_line_cov == line_cov # subtract the old coverage from the new coverage cov = line_cov.zip(before_line_cov).map do |line_after, line_before| if line_before line_after - line_before else line_after end end # add the "diffed" coverage to the hash res[file_name] = cov end end