add bump spec

Library/Homebrew/dev-cmd/bump.rb

@@ -23,9 +23,10 @@ module Homebrew
   end
 
   def bump
-    bump_args.parse
+    args = bump_args.parse
 
-    requested_formula = Homebrew.args.formula
+    requested_formula = args.formula
+    requested_limit = args.limit ? args.limit.to_i : nil
     requested_formula&.downcase!
 
     raise FormulaUnavailableError, requested_formula if requested_formula && !validate_formula(requested_formula)
@@ -36,9 +37,13 @@ module Homebrew
       Repology.parse_api_response
     end
 
-    validated_formulae = Repology.validate_and_format_packages(repology_data)
+    if repology_data.blank?
+      ohai "No Repology data found."
+    else
+      validated_formulae = Repology.validate_and_format_packages(repology_data, requested_limit)
       display(validated_formulae)
     end
+  end
 
   def validate_formula(formula_name)
     Formula[formula_name]
@@ -57,7 +62,7 @@ module Homebrew
       title = (up_to_date?(package_details) ? formula + " is up to date!" : formula).to_s
       ohai title
       puts "Current formula version:  #{package_details[:current_formula_version]}"
-      puts "Latest Repology version:  #{package_details[:repology_latest_version]}"
+      puts "Latest Repology version:  #{package_details[:repology_latest_version] || "Not found"}"
       puts "Latest livecheck version: #{package_details[:livecheck_latest_version] || "Not found"}"
       puts "Open pull requests: #{package_details[:open_pull_requests] || "None"}"
     end

Library/Homebrew/test/dev-cmd/bump_spec.rb

@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+require "cmd/shared_examples/args_parse"
+
+describe "Homebrew.bump_args" do
+  it_behaves_like "parseable arguments"
+end

Library/Homebrew/utils/repology.rb

@@ -53,7 +53,7 @@ module Repology
     outdated_packages
   end
 
-  def validate_and_format_packages(outdated_repology_packages)
+  def validate_and_format_packages(outdated_repology_packages, limit)
     packages = {}
     outdated_repology_packages.each do |_name, repositories|
       # identify homebrew repo
@@ -68,7 +68,7 @@ module Repology
       package_details = format_package(srcname, latest_version)
       packages[srcname] = package_details unless package_details.nil?
 
-      break if Homebrew.args.limit && packages.size >= Homebrew.args.limit.to_i
+      break if limit && packages.size >= limit
     end
 
     packages