Refactor CLI::Home.

Library/Homebrew/cask/lib/hbc/cli/home.rb

@@ -1,19 +1,28 @@
 module Hbc
   class CLI
     class Home < Base
-      def self.run(*cask_tokens)
-        if cask_tokens.empty?
+      def self.run(*args)
+        new(*args).run
+      end
+
+      def run
+        casks = @args.map(&CaskLoader.public_method(:load))
+
+        if casks.empty?
           odebug "Opening project homepage"
-          system "/usr/bin/open", "--", "https://caskroom.github.io/"
+          self.class.open_url "https://caskroom.github.io/"
         else
-          cask_tokens.each do |cask_token|
-            odebug "Opening homepage for Cask #{cask_token}"
-            cask = CaskLoader.load(cask_token)
-            system "/usr/bin/open", "--", cask.homepage
+          casks.each do |cask|
+            odebug "Opening homepage for Cask #{cask}"
+            self.class.open_url cask.homepage
           end
         end
       end
 
+      def self.open_url(url)
+        SystemCommand.run!(OS::PATH_OPEN, args: ["--", url])
+      end
+
       def self.help
         "opens the homepage of the given Cask"
       end

Library/Homebrew/test/cask/cli/home_spec.rb

@@ -1,46 +1,21 @@
-# monkeypatch for testing
-module Hbc
-  class CLI
-    class Home
-      def self.system(*command)
-        system_commands << command
-      end
-
-      def self.reset!
-        @system_commands = []
-      end
-
-      def self.system_commands
-        @system_commands ||= []
-      end
-    end
-  end
-end
-
 describe Hbc::CLI::Home, :cask do
   before do
-    Hbc::CLI::Home.reset!
+    allow(described_class).to receive(:open_url)
   end
 
   it "opens the homepage for the specified Cask" do
-    Hbc::CLI::Home.run("local-caffeine")
-    expect(Hbc::CLI::Home.system_commands).to eq [
-      ["/usr/bin/open", "--", "http://example.com/local-caffeine"],
-    ]
+    expect(described_class).to receive(:open_url).with("http://example.com/local-caffeine")
+    described_class.run("local-caffeine")
   end
 
   it "works for multiple Casks" do
-    Hbc::CLI::Home.run("local-caffeine", "local-transmission")
-    expect(Hbc::CLI::Home.system_commands).to eq [
-      ["/usr/bin/open", "--", "http://example.com/local-caffeine"],
-      ["/usr/bin/open", "--", "http://example.com/local-transmission"],
-    ]
+    expect(described_class).to receive(:open_url).with("http://example.com/local-caffeine")
+    expect(described_class).to receive(:open_url).with("http://example.com/local-transmission")
+    described_class.run("local-caffeine", "local-transmission")
   end
 
   it "opens the project page when no Cask is specified" do
-    Hbc::CLI::Home.run
-    expect(Hbc::CLI::Home.system_commands).to eq [
-      ["/usr/bin/open", "--", "https://caskroom.github.io/"],
-    ]
+    expect(described_class).to receive(:open_url).with("https://caskroom.github.io/")
+    described_class.run
   end
 end