diff --git a/Library/Homebrew/brew.rb b/Library/Homebrew/brew.rb
index 42ac131e14..92f50411bd 100644
--- a/Library/Homebrew/brew.rb
+++ b/Library/Homebrew/brew.rb
@@ -16,14 +16,15 @@ require "pathname"
 HOMEBREW_LIBRARY_PATH = Pathname.new(__FILE__).realpath.parent
 
 require "English"
-unless $LOAD_PATH.include?(HOMEBREW_LIBRARY_PATH.to_s)
-  $LOAD_PATH.unshift(HOMEBREW_LIBRARY_PATH.to_s)
-end
 
 unless $LOAD_PATH.include?("#{HOMEBREW_LIBRARY_PATH}/cask/lib")
   $LOAD_PATH.unshift("#{HOMEBREW_LIBRARY_PATH}/cask/lib")
 end
 
+unless $LOAD_PATH.include?(HOMEBREW_LIBRARY_PATH.to_s)
+  $LOAD_PATH.unshift(HOMEBREW_LIBRARY_PATH.to_s)
+end
+
 require "global"
 
 begin
diff --git a/Library/Homebrew/cask/lib/hbc.rb b/Library/Homebrew/cask/lib/hbc.rb
index 9c8c67f518..737c930d10 100644
--- a/Library/Homebrew/cask/lib/hbc.rb
+++ b/Library/Homebrew/cask/lib/hbc.rb
@@ -15,13 +15,11 @@ require "hbc/download"
 require "hbc/download_strategy"
 require "hbc/exceptions"
 require "hbc/installer"
-require "hbc/config"
 require "hbc/macos"
 require "hbc/pkg"
 require "hbc/staged"
 require "hbc/system_command"
 require "hbc/topological_hash"
-require "hbc/url"
 require "hbc/utils"
 require "hbc/verify"
 require "hbc/version"
diff --git a/Library/Homebrew/cask/lib/hbc/cask.rb b/Library/Homebrew/cask/lib/hbc/cask.rb
index d41e2d5221..ca8e51db0d 100644
--- a/Library/Homebrew/cask/lib/hbc/cask.rb
+++ b/Library/Homebrew/cask/lib/hbc/cask.rb
@@ -1,4 +1,5 @@
 require "hbc/cask_loader"
+require "hbc/config"
 require "hbc/dsl"
 require "hbc/metadata"
 require "searchable"
diff --git a/Library/Homebrew/cask/lib/hbc/cli.rb b/Library/Homebrew/cask/lib/hbc/cli.rb
index 975f8a7dfd..d88e365ab2 100644
--- a/Library/Homebrew/cask/lib/hbc/cli.rb
+++ b/Library/Homebrew/cask/lib/hbc/cli.rb
@@ -2,6 +2,9 @@ require "optparse"
 require "shellwords"
 
 require "extend/optparse"
+
+require "hbc/config"
+
 require "hbc/cli/options"
 
 require "hbc/cli/abstract_command"
@@ -18,7 +21,6 @@ require "hbc/cli/install"
 require "hbc/cli/list"
 require "hbc/cli/outdated"
 require "hbc/cli/reinstall"
-require "hbc/cli/search"
 require "hbc/cli/style"
 require "hbc/cli/uninstall"
 require "hbc/cli/upgrade"
diff --git a/Library/Homebrew/cask/lib/hbc/cli/abstract_command.rb b/Library/Homebrew/cask/lib/hbc/cli/abstract_command.rb
index e6313b5fc5..59268715fa 100644
--- a/Library/Homebrew/cask/lib/hbc/cli/abstract_command.rb
+++ b/Library/Homebrew/cask/lib/hbc/cli/abstract_command.rb
@@ -1,9 +1,11 @@
 require_relative "options"
+require "search"
 
 module Hbc
   class CLI
     class AbstractCommand
       include Options
+      include Homebrew::Search
 
       option "--[no-]binaries", :binaries,      true
       option "--debug",         :debug,         false
@@ -50,7 +52,7 @@ module Hbc
       end
 
       def suggestion_message(cask_token)
-        matches, = Search.search(cask_token)
+        matches = search_casks(cask_token)
 
         if matches.one?
           "Did you mean “#{matches.first}”?"
diff --git a/Library/Homebrew/cask/lib/hbc/cli/search.rb b/Library/Homebrew/cask/lib/hbc/cli/search.rb
deleted file mode 100644
index d7bd079bd1..0000000000
--- a/Library/Homebrew/cask/lib/hbc/cli/search.rb
+++ /dev/null
@@ -1,53 +0,0 @@
-require "search"
-
-module Hbc
-  class CLI
-    class Search < AbstractCommand
-      extend Homebrew::Search
-
-      def run
-        if args.empty?
-          puts Formatter.columns(CLI.nice_listing(Cask.map(&:qualified_token)))
-        else
-          results = self.class.search(*args)
-          self.class.render_results(*results)
-        end
-      end
-
-      def self.search(*arguments)
-        query = arguments.join(" ")
-        string_or_regex = query_regexp(query)
-        local_results = search_casks(string_or_regex)
-
-        remote_matches = search_taps(query, silent: true)[:casks]
-
-        [local_results, remote_matches, query]
-      end
-
-      def self.render_results(partial_matches, remote_matches, search_term)
-        unless $stdout.tty?
-          puts [*partial_matches, *remote_matches]
-          return
-        end
-
-        if partial_matches.empty? && remote_matches.empty?
-          puts "No Cask found for \"#{search_term}\"."
-          return
-        end
-
-        unless partial_matches.empty?
-          ohai "Matches"
-          puts Formatter.columns(partial_matches)
-        end
-
-        return if remote_matches.empty?
-        ohai "Remote Matches"
-        puts Formatter.columns(remote_matches)
-      end
-
-      def self.help
-        "searches all known Casks"
-      end
-    end
-  end
-end
diff --git a/Library/Homebrew/cask/lib/hbc/container.rb b/Library/Homebrew/cask/lib/hbc/container.rb
index fab3a3c1c3..3806df33f6 100644
--- a/Library/Homebrew/cask/lib/hbc/container.rb
+++ b/Library/Homebrew/cask/lib/hbc/container.rb
@@ -1,3 +1,5 @@
+require "hbc/utils"
+
 require "hbc/container/base"
 require "hbc/container/air"
 require "hbc/container/bzip2"
diff --git a/Library/Homebrew/cask/lib/hbc/dsl.rb b/Library/Homebrew/cask/lib/hbc/dsl.rb
index 7492b59017..5ed0fb5e99 100644
--- a/Library/Homebrew/cask/lib/hbc/dsl.rb
+++ b/Library/Homebrew/cask/lib/hbc/dsl.rb
@@ -2,6 +2,9 @@ require "locale"
 
 require "hbc/artifact"
 
+require "hbc/caskroom"
+require "hbc/exceptions"
+
 require "hbc/dsl/appcast"
 require "hbc/dsl/base"
 require "hbc/dsl/caveats"
@@ -16,6 +19,8 @@ require "hbc/dsl/uninstall_postflight"
 require "hbc/dsl/uninstall_preflight"
 require "hbc/dsl/version"
 
+require "hbc/url"
+
 module Hbc
   class DSL
     ORDINARY_ARTIFACT_CLASSES = [
diff --git a/Library/Homebrew/cmd/search.rb b/Library/Homebrew/cmd/search.rb
index dd45fe63ad..3914b455a5 100644
--- a/Library/Homebrew/cmd/search.rb
+++ b/Library/Homebrew/cmd/search.rb
@@ -52,38 +52,41 @@ module Homebrew
       return
     end
 
-    if args.remaining.empty?
+    if args.remaining.empty? && !args.desc?
       puts Formatter.columns(Formula.full_names.sort)
-    elsif args.desc?
-      query = args.remaining.join(" ")
-      string_or_regex = query_regexp(query)
-      Descriptions.search(string_or_regex, :desc).print
-    elsif args.remaining.first =~ HOMEBREW_TAP_FORMULA_REGEX
-      query = args.remaining.first
+      return
+    end
 
-      results = begin
-        [Formulary.factory(query).name]
-      rescue FormulaUnavailableError
-        _, _, name = query.split("/", 3)
-        remote_results = search_taps(name)
-        [*remote_results[:formulae], *remote_results[:casks]].sort
+    query = args.remaining.join(" ")
+    string_or_regex = query_regexp(query)
+
+    if args.desc?
+      search_descriptions(string_or_regex)
+    else
+      remote_results = search_taps(query, silent: true)
+
+      local_formulae = search_formulae(string_or_regex)
+      remote_formulae = remote_results[:formulae]
+      all_formulae = local_formulae + remote_formulae
+
+      local_casks = search_casks(string_or_regex)
+      remote_casks = remote_results[:casks]
+      all_casks = local_casks + remote_casks
+
+      if all_formulae.any?
+        ohai "Formulae"
+        puts Formatter.columns(all_formulae)
       end
 
-      puts Formatter.columns(results) unless results.empty?
-    else
-      query = args.remaining.join(" ")
-      string_or_regex = query_regexp(query)
-      local_results = search_formulae(string_or_regex)
-      puts Formatter.columns(local_results.sort) unless local_results.empty?
-
-      remote_results = search_taps(query)
-      tap_results = [*remote_results[:formulae], *remote_results[:casks]].sort
-      puts Formatter.columns(tap_results) unless tap_results.empty?
+      if all_casks.any?
+        puts if all_formulae.any?
+        ohai "Casks"
+        puts Formatter.columns(all_casks)
+      end
 
       if $stdout.tty?
-        count = local_results.length + tap_results.length
+        count = all_formulae.count + all_casks.count
 
-        ohai "Searching blacklisted, migrated and deleted formulae..."
         if reason = MissingFormula.reason(query, silent: true)
           if count.positive?
             puts
@@ -91,7 +94,7 @@ module Homebrew
           end
           puts reason
         elsif count.zero?
-          puts "No formula found for #{query.inspect}."
+          puts "No formula or cask found for #{query.inspect}."
           GitHub.print_pull_requests_matching(query)
         end
       end
diff --git a/Library/Homebrew/compat/hbc.rb b/Library/Homebrew/compat/hbc.rb
index b64c3e4377..e41f39f856 100644
--- a/Library/Homebrew/compat/hbc.rb
+++ b/Library/Homebrew/compat/hbc.rb
@@ -1,4 +1,5 @@
 require "compat/hbc/cask_loader"
+require "compat/hbc/cli/search"
 require "compat/hbc/cli/update"
 require "compat/hbc/cache"
 require "compat/hbc/caskroom"
diff --git a/Library/Homebrew/compat/hbc/cli.rb b/Library/Homebrew/compat/hbc/cli.rb
index fb17a1d050..b80fd409d0 100644
--- a/Library/Homebrew/compat/hbc/cli.rb
+++ b/Library/Homebrew/compat/hbc/cli.rb
@@ -1,4 +1,4 @@
-require "cask/lib/hbc/cli/options"
+require "hbc/cli/options"
 
 module Hbc
   class CLI
diff --git a/Library/Homebrew/compat/hbc/cli/search.rb b/Library/Homebrew/compat/hbc/cli/search.rb
new file mode 100644
index 0000000000..9d9f3d52fe
--- /dev/null
+++ b/Library/Homebrew/compat/hbc/cli/search.rb
@@ -0,0 +1,21 @@
+require "hbc/cli/abstract_command"
+require "cmd/search"
+
+module Hbc
+  class CLI
+    module Compat
+      class Search < AbstractCommand
+        def run
+          odeprecated "`brew cask search`", "`brew search`"
+          Homebrew.search(args)
+        end
+
+        def self.visible
+          false
+        end
+      end
+    end
+
+    prepend Compat
+  end
+end
diff --git a/Library/Homebrew/compat/hbc/cli/update.rb b/Library/Homebrew/compat/hbc/cli/update.rb
index 348e3a2c76..5f0f255d86 100644
--- a/Library/Homebrew/compat/hbc/cli/update.rb
+++ b/Library/Homebrew/compat/hbc/cli/update.rb
@@ -1,10 +1,10 @@
-require "cask/lib/hbc/cli/abstract_command"
+require "hbc/cli/abstract_command"
 
 module Hbc
   class CLI
     module Compat
       class Update < AbstractCommand
-        def self.run(*_ignored)
+        def run
           odisabled "`brew cask update`", "`brew update`"
         end
 
diff --git a/Library/Homebrew/config.rb b/Library/Homebrew/config.rb
index 38d7c80438..753616a8c8 100644
--- a/Library/Homebrew/config.rb
+++ b/Library/Homebrew/config.rb
@@ -47,4 +47,7 @@ unless defined? HOMEBREW_LIBRARY_PATH
 end
 
 # Load path used by standalone scripts to access the Homebrew code base
-HOMEBREW_LOAD_PATH = HOMEBREW_LIBRARY_PATH
+HOMEBREW_LOAD_PATH = [
+  HOMEBREW_LIBRARY_PATH,
+  HOMEBREW_LIBRARY_PATH/"cask/lib",
+].join(File::PATH_SEPARATOR)
diff --git a/Library/Homebrew/dev-cmd/ruby.rb b/Library/Homebrew/dev-cmd/ruby.rb
index c5696d6bba..c244bcdf13 100755
--- a/Library/Homebrew/dev-cmd/ruby.rb
+++ b/Library/Homebrew/dev-cmd/ruby.rb
@@ -8,6 +8,6 @@ module Homebrew
   module_function
 
   def ruby
-    exec ENV["HOMEBREW_RUBY_PATH"], "-I#{HOMEBREW_LIBRARY_PATH}", "-rglobal", "-rdev-cmd/irb", *ARGV
+    exec ENV["HOMEBREW_RUBY_PATH"], "-I", HOMEBREW_LOAD_PATH, "-rglobal", "-rdev-cmd/irb", *ARGV
   end
 end
diff --git a/Library/Homebrew/extend/os/mac/search.rb b/Library/Homebrew/extend/os/mac/search.rb
new file mode 100644
index 0000000000..5d1d7cc78a
--- /dev/null
+++ b/Library/Homebrew/extend/os/mac/search.rb
@@ -0,0 +1,43 @@
+require "hbc/cask"
+require "hbc/cask_loader"
+
+module Homebrew
+  module Search
+    module Extension
+      def search_descriptions(string_or_regex)
+        super
+
+        puts
+
+        ohai "Casks"
+        Hbc::Cask.to_a.extend(Searchable)
+                 .search(string_or_regex, &:name)
+                 .each do |cask|
+          puts "#{Tty.bold}#{cask.token}:#{Tty.reset} #{cask.name.join(", ")}"
+        end
+      end
+
+      def search_casks(string_or_regex)
+        if string_or_regex.is_a?(String) && string_or_regex.match?(HOMEBREW_TAP_CASK_REGEX)
+          return begin
+            [Hbc::CaskLoader.load(string_or_regex).token]
+          rescue Hbc::CaskUnavailableError
+            []
+          end
+        end
+
+        results = Hbc::Cask.search(string_or_regex, &:token).sort_by(&:token)
+
+        results.map do |cask|
+          if cask.installed?
+            pretty_installed(cask.token)
+          else
+            cask.token
+          end
+        end
+      end
+    end
+
+    prepend Extension
+  end
+end
diff --git a/Library/Homebrew/extend/os/search.rb b/Library/Homebrew/extend/os/search.rb
new file mode 100644
index 0000000000..69c6b02543
--- /dev/null
+++ b/Library/Homebrew/extend/os/search.rb
@@ -0,0 +1 @@
+require "extend/os/mac/search" if OS.mac?
diff --git a/Library/Homebrew/search.rb b/Library/Homebrew/search.rb
index 736a854f81..6362e3114f 100644
--- a/Library/Homebrew/search.rb
+++ b/Library/Homebrew/search.rb
@@ -1,5 +1,4 @@
 require "searchable"
-require "hbc/cask"
 
 module Homebrew
   module Search
@@ -13,7 +12,16 @@ module Homebrew
       raise "#{query} is not a valid regex."
     end
 
+    def search_descriptions(string_or_regex)
+      ohai "Formulae"
+      Descriptions.search(string_or_regex, :desc).print
+    end
+
     def search_taps(query, silent: false)
+      if query.match?(Regexp.union(HOMEBREW_TAP_FORMULA_REGEX, HOMEBREW_TAP_CASK_REGEX))
+        _, _, query = query.split("/", 3)
+      end
+
       results = { formulae: [], casks: [] }
 
       return results if ENV["HOMEBREW_NO_GITHUB_API"]
@@ -40,7 +48,7 @@ module Homebrew
         tap = Tap.fetch(match["repository"]["full_name"])
         full_name = "#{tap.name}/#{name}"
 
-        next if tap.installed? && !match["path"].start_with?("Casks/")
+        next if tap.installed?
 
         if match["path"].start_with?("Casks/")
           results[:casks] = [*results[:casks], full_name].sort
@@ -53,8 +61,13 @@ module Homebrew
     end
 
     def search_formulae(string_or_regex)
-      # Use stderr to avoid breaking parsed output
-      $stderr.puts Formatter.headline("Searching local taps...", color: :blue)
+      if string_or_regex.is_a?(String) && string_or_regex.match?(HOMEBREW_TAP_FORMULA_REGEX)
+        return begin
+          [Formulary.factory(string_or_regex).name]
+        rescue FormulaUnavailableError
+          []
+        end
+      end
 
       aliases = Formula.alias_full_names
       results = (Formula.full_names + aliases)
@@ -81,16 +94,10 @@ module Homebrew
       end.compact
     end
 
-    def search_casks(string_or_regex)
-      results = Hbc::Cask.search(string_or_regex, &:token).sort_by(&:token)
-
-      results.map do |cask|
-        if cask.installed?
-          pretty_installed(cask.token)
-        else
-          cask.token
-        end
-      end
+    def search_casks(_string_or_regex)
+      []
     end
   end
 end
+
+require "extend/os/search"
diff --git a/Library/Homebrew/test/cask/cli/search_spec.rb b/Library/Homebrew/test/cask/cli/search_spec.rb
deleted file mode 100644
index 092c19b737..0000000000
--- a/Library/Homebrew/test/cask/cli/search_spec.rb
+++ /dev/null
@@ -1,123 +0,0 @@
-require_relative "shared_examples/invalid_option"
-
-describe Hbc::CLI::Search, :cask do
-  before do
-    allow(Tty).to receive(:width).and_return(0)
-  end
-
-  it_behaves_like "a command that handles invalid options"
-
-  it "lists the available Casks that match the search term" do
-    allow(GitHub).to receive(:search_code).and_return([])
-
-    expect {
-      Hbc::CLI::Search.run("local")
-    }.to output(<<~EOS).to_stdout.as_tty
-      ==> Matches
-      local-caffeine
-      local-transmission
-    EOS
-  end
-
-  it "outputs a plain list when stdout is not a TTY" do
-    allow(GitHub).to receive(:search_code).and_return([])
-
-    expect {
-      Hbc::CLI::Search.run("local")
-    }.to output(<<~EOS).to_stdout
-      local-caffeine
-      local-transmission
-    EOS
-  end
-
-  it "returns matches even when online search failed" do
-    allow(GitHub).to receive(:search_code).and_raise(GitHub::Error.new("reason"))
-
-    expect {
-      Hbc::CLI::Search.run("local")
-    }.to output(<<~EOS).to_stdout
-      local-caffeine
-      local-transmission
-    EOS
-    .and output(/^Warning: Error searching on GitHub: reason/).to_stderr
-  end
-
-  it "shows that there are no Casks matching a search term that did not result in anything" do
-    expect {
-      Hbc::CLI::Search.run("foo-bar-baz")
-    }.to output(<<~EOS).to_stdout.as_tty
-      No Cask found for "foo-bar-baz".
-    EOS
-  end
-
-  it "doesn't output anything to non-TTY stdout when there are no matches" do
-    allow(GitHub).to receive(:search_code).and_return([])
-
-    expect { Hbc::CLI::Search.run("foo-bar-baz") }
-      .to not_to_output.to_stdout
-      .and not_to_output.to_stderr
-  end
-
-  it "lists all Casks available offline with no search term" do
-    allow(GitHub).to receive(:search_code).and_raise(GitHub::Error.new("reason"))
-    expect { Hbc::CLI::Search.run }
-      .to output(/local-caffeine/).to_stdout.as_tty
-      .and not_to_output.to_stderr
-  end
-
-  it "ignores hyphens in search terms" do
-    expect {
-      Hbc::CLI::Search.run("lo-cal-caffeine")
-    }.to output(/local-caffeine/).to_stdout.as_tty
-  end
-
-  it "ignores hyphens in Cask tokens" do
-    expect {
-      Hbc::CLI::Search.run("localcaffeine")
-    }.to output(/local-caffeine/).to_stdout.as_tty
-  end
-
-  it "accepts multiple arguments" do
-    expect {
-      Hbc::CLI::Search.run("local caffeine")
-    }.to output(/local-caffeine/).to_stdout.as_tty
-  end
-
-  it "accepts a regexp argument" do
-    expect {
-      Hbc::CLI::Search.run("/^local-c[a-z]ffeine$/")
-    }.to output(<<~EOS).to_stdout.as_tty
-      ==> Matches
-      local-caffeine
-    EOS
-  end
-
-  it "returns both exact and partial matches" do
-    expect {
-      Hbc::CLI::Search.run("test-opera")
-    }.to output(<<~EOS).to_stdout.as_tty
-      ==> Matches
-      test-opera
-      test-opera-mail
-    EOS
-  end
-
-  it "does not search the Tap name" do
-    expect {
-      Hbc::CLI::Search.run("caskroom")
-    }.to output(<<~EOS).to_stdout.as_tty
-      No Cask found for "caskroom".
-    EOS
-  end
-
-  it "highlights installed packages" do
-    Hbc::CLI::Install.run("local-caffeine")
-
-    expect {
-      Hbc::CLI::Search.run("local-caffeine")
-    }.to output(<<~EOS).to_stdout.as_tty
-      ==> Matches
-      local-caffeine ✔
-    EOS
-  end
-end
diff --git a/Library/Homebrew/test/cmd/search_spec.rb b/Library/Homebrew/test/cmd/search_spec.rb
index 556c863ca2..97c4460635 100644
--- a/Library/Homebrew/test/cmd/search_spec.rb
+++ b/Library/Homebrew/test/cmd/search_spec.rb
@@ -15,7 +15,6 @@ describe "brew search", :integration_test do
   it "supports searching by name" do
     expect { brew "search", "testball" }
       .to output(/testball/).to_stdout
-      .and output(/Searching/).to_stderr
       .and be_a_success
   end
 
@@ -31,7 +30,6 @@ describe "brew search", :integration_test do
 
     expect { brew "search", "homebrew/cask/firefox" }
       .to output(/firefox/).to_stdout
-      .and output(/Searching/).to_stderr
       .and be_a_success
   end
 
diff --git a/Library/Homebrew/test/spec_helper.rb b/Library/Homebrew/test/spec_helper.rb
index a09afa11b6..b7a657bf60 100644
--- a/Library/Homebrew/test/spec_helper.rb
+++ b/Library/Homebrew/test/spec_helper.rb
@@ -14,8 +14,8 @@ require "rubocop"
 require "rubocop/rspec/support"
 require "find"
 
-$LOAD_PATH.unshift(File.expand_path("#{ENV["HOMEBREW_LIBRARY"]}/Homebrew"))
 $LOAD_PATH.unshift(File.expand_path("#{ENV["HOMEBREW_LIBRARY"]}/Homebrew/cask/lib"))
+$LOAD_PATH.unshift(File.expand_path("#{ENV["HOMEBREW_LIBRARY"]}/Homebrew"))
 $LOAD_PATH.unshift(File.expand_path("#{ENV["HOMEBREW_LIBRARY"]}/Homebrew/test/support/lib"))
 
 require "global"
diff --git a/Library/Homebrew/test/support/helper/spec/shared_context/integration_test.rb b/Library/Homebrew/test/support/helper/spec/shared_context/integration_test.rb
index 41d7174cc3..f8e59ad4b4 100644
--- a/Library/Homebrew/test/support/helper/spec/shared_context/integration_test.rb
+++ b/Library/Homebrew/test/support/helper/spec/shared_context/integration_test.rb
@@ -83,9 +83,7 @@ RSpec.shared_context "integration test" do
     @ruby_args ||= begin
       ruby_args = [
         "-W0",
-        "-I", "#{HOMEBREW_LIBRARY_PATH}/test/support/lib",
-        "-I", HOMEBREW_LIBRARY_PATH.to_s,
-        "-I", "#{HOMEBREW_LIBRARY_PATH}/cask/lib",
+        "-I", HOMEBREW_LOAD_PATH,
         "-rconfig"
       ]
       if ENV["HOMEBREW_TESTS_COVERAGE"]
diff --git a/Library/Homebrew/test/support/lib/config.rb b/Library/Homebrew/test/support/lib/config.rb
index 7408b3e34a..c83a0eabaa 100644
--- a/Library/Homebrew/test/support/lib/config.rb
+++ b/Library/Homebrew/test/support/lib/config.rb
@@ -15,7 +15,11 @@ end
 # Paths pointing into the Homebrew code base that persist across test runs
 HOMEBREW_LIBRARY_PATH  = Pathname.new(File.expand_path("../../..", __dir__))
 HOMEBREW_SHIMS_PATH    = HOMEBREW_LIBRARY_PATH.parent+"Homebrew/shims"
-HOMEBREW_LOAD_PATH     = [File.expand_path(__dir__), HOMEBREW_LIBRARY_PATH].join(":")
+HOMEBREW_LOAD_PATH     = [
+  File.expand_path(__dir__),
+  HOMEBREW_LIBRARY_PATH,
+  HOMEBREW_LIBRARY_PATH.join("cask/lib"),
+].join(File::PATH_SEPARATOR)
 
 # Paths redirected to a temporary directory and wiped at the end of the test run
 HOMEBREW_PREFIX        = Pathname.new(TEST_TMPDIR).join("prefix")
diff --git a/Library/Homebrew/utils.rb b/Library/Homebrew/utils.rb
index fb4b764d98..7421fb5c73 100644
--- a/Library/Homebrew/utils.rb
+++ b/Library/Homebrew/utils.rb
@@ -16,6 +16,7 @@ require "time"
 def require?(path)
   return false if path.nil?
   require path
+  true
 rescue LoadError => e
   # we should raise on syntax errors but not if the file doesn't exist.
   raise unless e.message.include?(path)