debian-mirror-gitlab/tooling/danger/specs.rb

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# frozen_string_literal: true
module Tooling
module Danger
module Specs
SPEC_FILES_REGEX = 'spec/'
EE_PREFIX = 'ee/'
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MATCH_WITH_ARRAY_REGEX = /(?<to>to\(?\s*)(?<matcher>match|eq)(?<expectation>[( ]?\[[^\]]+)/.freeze
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MATCH_WITH_ARRAY_REPLACEMENT = '\k<to>match_array\k<expectation>'
PROJECT_FACTORIES = %w[
:project
:project_empty_repo
:forked_project_with_submodules
:project_with_design
].freeze
PROJECT_FACTORY_REGEX = /
^\+? # Start of the line, which may or may not have a `+`
(?<head>\s*) # 0-many leading whitespace captured in a group named head
let!? # Literal `let` which may or may not end in `!`
(?<tail> # capture group named tail
\([^)]+\) # Two parenthesis with any non-parenthesis characters between them
\s*\{\s* # Opening curly brace surrounded by 0-many whitespace characters
create\( # literal
(?:#{PROJECT_FACTORIES.join('|')}) # Any of the project factory names
\W # Non-word character, avoid matching factories like :project_authorization
) # end capture group named tail
/x.freeze
PROJECT_FACTORY_REPLACEMENT = '\k<head>let_it_be\k<tail>'
SUGGESTION_MARKDOWN = <<~SUGGESTION_MARKDOWN
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```suggestion
%<suggested_line>s
```
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SUGGESTION_MARKDOWN
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MATCH_WITH_ARRAY_SUGGESTION = <<~SUGGEST_COMMENT
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If order of the result is not important, please consider using `match_array` to avoid flakiness.
SUGGEST_COMMENT
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PROJECT_FACTORY_SUGGESTION = <<~SUGGEST_COMMENT
Project creations are very slow. Use `let_it_be`, `build` or `build_stubbed` if possible.
See [testing best practices](https://docs.gitlab.com/ee/development/testing_guide/best_practices.html#optimize-factory-usage)
for background information and alternative options.
SUGGEST_COMMENT
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def changed_specs_files(ee: :include)
changed_files = helper.all_changed_files
folder_prefix =
case ee
when :include
"(#{EE_PREFIX})?"
when :only
EE_PREFIX
when :exclude
nil
end
changed_files.grep(%r{\A#{folder_prefix}#{SPEC_FILES_REGEX}})
end
def add_suggestions_for_match_with_array(filename)
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add_suggestion(
filename,
MATCH_WITH_ARRAY_REGEX,
MATCH_WITH_ARRAY_REPLACEMENT,
MATCH_WITH_ARRAY_SUGGESTION
)
end
def add_suggestions_for_project_factory_usage(filename)
add_suggestion(
filename,
PROJECT_FACTORY_REGEX,
PROJECT_FACTORY_REPLACEMENT,
PROJECT_FACTORY_SUGGESTION
)
end
private
def added_lines_matching(filename, regex)
helper.changed_lines(filename).grep(/\A\+ /).grep(regex)
end
def add_suggestion(filename, regex, replacement, comment_text)
added_lines = added_lines_matching(filename, regex)
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return if added_lines.empty?
spec_file_lines = project_helper.file_lines(filename)
added_lines.each_with_object([]) do |added_line, processed_line_numbers|
line_number = find_line_number(spec_file_lines, added_line.delete_prefix('+'), exclude_indexes: processed_line_numbers)
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next unless line_number
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processed_line_numbers << line_number
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text = format(comment(comment_text), suggested_line: spec_file_lines[line_number].gsub(regex, replacement))
markdown(text, file: filename, line: line_number.succ)
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end
end
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def comment(comment_text)
<<~COMMENT_BODY.chomp
#{SUGGESTION_MARKDOWN}
#{comment_text}
COMMENT_BODY
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end
def find_line_number(file_lines, searched_line, exclude_indexes: [])
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_, index = file_lines.each_with_index.find do |file_line, index|
file_line == searched_line && !exclude_indexes.include?(index)
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end
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index
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end
end
end
end