Class: Flaky::Commands::Rank

Inherits:
Object
  • Object
show all
Defined in:
lib/flaky/commands/rank.rb

Instance Method Summary collapse

Constructor Details

#initialize(since_days: 30, min_failures: 1) ⇒ Rank

Returns a new instance of Rank.



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# File 'lib/flaky/commands/rank.rb', line 8

def initialize(since_days: 30, min_failures: 1)
  @since_days = since_days
  @min_failures = min_failures
  @db = Database.new
end

Instance Method Details

#execute ⇒ Object 



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# File 'lib/flaky/commands/rank.rb', line 14

def execute
  conn = @db.connection
  branch = Flaky.configuration.branch

  rows = conn.execute(<<~SQL, [branch, "-#{@since_days} days", @min_failures])
    SELECT
      tf.spec_file,
      tf.line_number,
      tf.description,
      COUNT(*) as failure_count,
      MAX(tf.failed_at) as last_failure,
      GROUP_CONCAT(DISTINCT tf.seed) as seeds
    FROM test_failures tf
    JOIN ci_runs cr ON cr.workflow_id = tf.workflow_id
    WHERE cr.branch = ?
      AND cr.created_at >= datetime('now', ?)
    GROUP BY tf.spec_file, tf.line_number
    HAVING COUNT(*) >= ?
    ORDER BY failure_count DESC, last_failure DESC
  SQL

  if rows.empty?
    puts "No flaky tests found in the last #{@since_days} days."
    return
  end

  total_runs = conn.get_first_value(
    "SELECT COUNT(DISTINCT workflow_id) FROM ci_runs WHERE branch = ? AND created_at >= datetime('now', ?)",
    [branch, "-#{@since_days} days"]
  ).to_i

  puts "Flaky tests on #{branch} (last #{@since_days} days, #{total_runs} CI runs):\n\n"
  puts format("%-6s %-50s %s", "Fails", "Location", "Last Failure")
  puts "-" * 90

  rows.each_with_index do |row, i|
    location = "#{row['spec_file']}:#{row['line_number']}"
    truncated = location.length > 48 ? "...#{location[-45..]}" : location
    puts format("%-6d %-50s %s", row["failure_count"], truncated, row["last_failure"])

    if i == 0
      puts "\n  \e[33m▶ Next to investigate:\e[0m #{location}"
      puts "    #{row['description']}"
      puts "    Seeds: #{row['seeds']}"
      puts ""
    end
  end
ensure
  @db.close
end