diff --git a/Library/.rubocop_cask.yml b/Library/.rubocop_cask.yml
index 4e148c3445..996a5ec088 100644
--- a/Library/.rubocop_cask.yml
+++ b/Library/.rubocop_cask.yml
@@ -3,6 +3,8 @@ inherit_from: ./.rubocop_shared.yml
 Cask/HomepageMatchesUrl:
   Description: 'Ensure that the homepage and url match, otherwise add a comment. More info at https://github.com/Homebrew/homebrew-cask/blob/master/doc/cask_language_reference/stanzas/url.md#when-url-and-homepage-hostnames-differ-add-a-comment'
   Enabled: true
+  Exclude:
+  - '**/test/support/fixtures/cask/Casks/**/*.rb'
 
 Cask/HomepageUrlTrailingSlash:
   Description: 'Ensure that the homepage url has a slash after the domain name.'
diff --git a/Library/Homebrew/cask/cmd/style.rb b/Library/Homebrew/cask/cmd/style.rb
index 539aee1179..8355ba9eca 100644
--- a/Library/Homebrew/cask/cmd/style.rb
+++ b/Library/Homebrew/cask/cmd/style.rb
@@ -31,7 +31,7 @@ module Cask
 
       def cask_paths
         @cask_paths ||= if args.empty?
-          Tap.map(&:cask_dir).select(&:directory?)
+          Tap.map(&:cask_dir).select(&:directory?).concat(test_cask_paths)
         elsif args.any? { |file| File.exist?(file) }
           args.map { |path| Pathname(path).expand_path }
         else
@@ -51,6 +51,13 @@ module Cask
         ]
       end
 
+      def test_cask_paths
+        [
+          Pathname.new("#{HOMEBREW_LIBRARY}/Homebrew/test/support/fixtures/cask/Casks"),
+          Pathname.new("#{HOMEBREW_LIBRARY}/Homebrew/test/support/fixtures/third-party/Casks"),
+        ]
+      end
+
       def normal_args
         default_args + ["--parallel"]
       end
diff --git a/Library/Homebrew/test/cask/cmd/home_spec.rb b/Library/Homebrew/test/cask/cmd/home_spec.rb
index 2462b7c4f5..ca9e5481f0 100644
--- a/Library/Homebrew/test/cask/cmd/home_spec.rb
+++ b/Library/Homebrew/test/cask/cmd/home_spec.rb
@@ -10,13 +10,13 @@ describe Cask::Cmd::Home, :cask do
   it_behaves_like "a command that handles invalid options"
 
   it "opens the homepage for the specified Cask" do
-    expect(described_class).to receive(:open_url).with("https://brew.sh")
+    expect(described_class).to receive(:open_url).with("https://brew.sh/")
     described_class.run("local-caffeine")
   end
 
   it "works for multiple Casks" do
-    expect(described_class).to receive(:open_url).with("https://brew.sh")
-    expect(described_class).to receive(:open_url).with("https://brew.sh")
+    expect(described_class).to receive(:open_url).with("https://brew.sh/")
+    expect(described_class).to receive(:open_url).with("https://brew.sh/")
     described_class.run("local-caffeine", "local-transmission")
   end
 
diff --git a/Library/Homebrew/test/cask/cmd/info_spec.rb b/Library/Homebrew/test/cask/cmd/info_spec.rb
index 01e29bfa8e..01fd90d27a 100644
--- a/Library/Homebrew/test/cask/cmd/info_spec.rb
+++ b/Library/Homebrew/test/cask/cmd/info_spec.rb
@@ -12,7 +12,7 @@ describe Cask::Cmd::Info, :cask do
       described_class.run("local-caffeine")
     }.to output(<<~EOS).to_stdout
       local-caffeine: 1.2.3
-      https://brew.sh
+      https://brew.sh/
       Not installed
       From: https://github.com/Homebrew/homebrew-cask/blob/master/Casks/local-caffeine.rb
       ==> Name
@@ -41,7 +41,7 @@ describe Cask::Cmd::Info, :cask do
     let(:expected_output) {
       <<~EOS
         local-caffeine: 1.2.3
-        https://brew.sh
+        https://brew.sh/
         Not installed
         From: https://github.com/Homebrew/homebrew-cask/blob/master/Casks/local-caffeine.rb
         ==> Name
@@ -50,7 +50,7 @@ describe Cask::Cmd::Info, :cask do
         Caffeine.app (App)
 
         local-transmission: 2.61
-        https://brew.sh
+        https://brew.sh/
         Not installed
         From: https://github.com/Homebrew/homebrew-cask/blob/master/Casks/local-transmission.rb
         ==> Name
@@ -72,7 +72,7 @@ describe Cask::Cmd::Info, :cask do
       described_class.run("with-caveats")
     }.to output(<<~EOS).to_stdout
       with-caveats: 1.2.3
-      https://brew.sh
+      https://brew.sh/
       Not installed
       From: https://github.com/Homebrew/homebrew-cask/blob/master/Casks/with-caveats.rb
       ==> Name
@@ -97,7 +97,7 @@ describe Cask::Cmd::Info, :cask do
       described_class.run("with-conditional-caveats")
     }.to output(<<~EOS).to_stdout
       with-conditional-caveats: 1.2.3
-      https://brew.sh
+      https://brew.sh/
       Not installed
       From: https://github.com/Homebrew/homebrew-cask/blob/master/Casks/with-conditional-caveats.rb
       ==> Name
@@ -112,7 +112,7 @@ describe Cask::Cmd::Info, :cask do
       described_class.run("with-languages")
     }.to output(<<~EOS).to_stdout
       with-languages: 1.2.3
-      https://brew.sh
+      https://brew.sh/
       Not installed
       From: https://github.com/Homebrew/homebrew-cask/blob/master/Casks/with-languages.rb
       ==> Name
@@ -129,7 +129,7 @@ describe Cask::Cmd::Info, :cask do
       described_class.run("without-languages")
     }.to output(<<~EOS).to_stdout
       without-languages: 1.2.3
-      https://brew.sh
+      https://brew.sh/
       Not installed
       From: https://github.com/Homebrew/homebrew-cask/blob/master/Casks/without-languages.rb
       ==> Name
diff --git a/Library/Homebrew/test/cask/cmd/internal_stanza_spec.rb b/Library/Homebrew/test/cask/cmd/internal_stanza_spec.rb
index a208adbfb3..cffb1f7806 100644
--- a/Library/Homebrew/test/cask/cmd/internal_stanza_spec.rb
+++ b/Library/Homebrew/test/cask/cmd/internal_stanza_spec.rb
@@ -5,7 +5,7 @@ describe Cask::Cmd::InternalStanza, :cask do
     command = described_class.new("homepage", "local-caffeine")
     expect {
       command.run
-    }.to output("https://brew.sh\n").to_stdout
+    }.to output("https://brew.sh/\n").to_stdout
   end
 
   it "raises an exception when stanza is unknown/unsupported" do
diff --git a/Library/Homebrew/test/cask/cmd/style_spec.rb b/Library/Homebrew/test/cask/cmd/style_spec.rb
index 7faa9771ba..a55b89fde9 100644
--- a/Library/Homebrew/test/cask/cmd/style_spec.rb
+++ b/Library/Homebrew/test/cask/cmd/style_spec.rb
@@ -80,8 +80,12 @@ describe Cask::Cmd::Style, :cask do
       end
 
       it {
-        expect(subject).to contain_exactly(a_path_ending_with("/homebrew/homebrew-cask/Casks"),
-                                           a_path_ending_with("/third-party/homebrew-tap/Casks"))
+        expect(subject).to contain_exactly(
+          a_path_ending_with("/homebrew/homebrew-cask/Casks"),
+          a_path_ending_with("/third-party/homebrew-tap/Casks"),
+          a_path_ending_with("/Homebrew/test/support/fixtures/cask/Casks"),
+          a_path_ending_with("/Homebrew/test/support/fixtures/third-party/Casks"),
+        )
       }
     end
 
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/bad-checksum.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/bad-checksum.rb
index e308b29d46..71c2161948 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/bad-checksum.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/bad-checksum.rb
@@ -3,7 +3,7 @@ cask 'bad-checksum' do
   sha256 'badbadbadbadbadbadbadbadbadbadbadbadbadbadbadbadbadbadbadbadbadb'
 
   url "file://#{TEST_FIXTURE_DIR}/cask/caffeine.zip"
-  homepage 'https://brew.sh'
+  homepage 'https://brew.sh/'
 
   app 'Caffeine.app'
 end
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/booby-trap.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/booby-trap.rb
index 21bd97952d..9d3a6d3334 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/booby-trap.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/booby-trap.rb
@@ -3,6 +3,6 @@ cask 'booby-trap' do
 
   url do
     # to be lazily evaluated
-    fail 'Boom'
+    raise 'Boom'
   end
 end
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/installer-with-uninstall.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/installer-with-uninstall.rb
index 016f440506..ce2296af4a 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/installer-with-uninstall.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/installer-with-uninstall.rb
@@ -3,7 +3,7 @@ cask 'installer-with-uninstall' do
   sha256 '67cdb8a02803ef37fdbf7e0be205863172e41a561ca446cd84f0d7ab35a99d94'
 
   url "file://#{TEST_FIXTURE_DIR}/cask/caffeine.zip"
-  homepage 'https://brew.sh'
+  homepage 'https://brew.sh/'
 
   installer manual: 'Caffeine.app'
 
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/invalid/invalid-header-format.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/invalid/invalid-header-format.rb
index b2e2b83c2b..20896b4566 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/invalid/invalid-header-format.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/invalid/invalid-header-format.rb
@@ -1,9 +1,9 @@
-cask => 'invalid-header-format' do
+cask 'invalid-header-format', :invalid do
   version '1.2.3'
   sha256 '67cdb8a02803ef37fdbf7e0be205863172e41a561ca446cd84f0d7ab35a99d94'
 
   url "file://#{TEST_FIXTURE_DIR}/cask/caffeine.zip"
-  homepage 'https://brew.sh'
+  homepage 'https://brew.sh/'
 
   app 'Caffeine.app'
 end
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/invalid/invalid-header-token-mismatch.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/invalid/invalid-header-token-mismatch.rb
index e3057d765c..f459c13a26 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/invalid/invalid-header-token-mismatch.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/invalid/invalid-header-token-mismatch.rb
@@ -3,7 +3,7 @@ cask 'invalid-header-token-mismatch-this-text-does-not-belong' do
   sha256 '67cdb8a02803ef37fdbf7e0be205863172e41a561ca446cd84f0d7ab35a99d94'
 
   url "file://#{TEST_FIXTURE_DIR}/cask/caffeine.zip"
-  homepage 'https://brew.sh'
+  homepage 'https://brew.sh/'
 
   app 'Caffeine.app'
 end
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/invalid/invalid-header-version.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/invalid/invalid-header-version.rb
index fea645dd29..36907fb57a 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/invalid/invalid-header-version.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/invalid/invalid-header-version.rb
@@ -3,7 +3,7 @@ cask 'invalid-header-version' do
   sha256 '67cdb8a02803ef37fdbf7e0be205863172e41a561ca446cd84f0d7ab35a99d94'
 
   url "file://#{TEST_FIXTURE_DIR}/cask/caffeine.zip"
-  homepage 'https://brew.sh'
+  homepage 'https://brew.sh/'
 
   app 'Caffeine.app'
 end
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/invalid/invalid-two-homepage.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/invalid/invalid-two-homepage.rb
index 6bd803b2df..670df6aef6 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/invalid/invalid-two-homepage.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/invalid/invalid-two-homepage.rb
@@ -3,7 +3,7 @@ cask 'invalid-two-homepage' do
   sha256 '67cdb8a02803ef37fdbf7e0be205863172e41a561ca446cd84f0d7ab35a99d94'
 
   url "file://#{TEST_FIXTURE_DIR}/cask/caffeine.zip"
-  homepage 'https://brew.sh'
+  homepage 'https://brew.sh/'
   homepage 'https://www.brew.sh/local-caffeine'
 
   app 'Caffeine.app'
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/invalid/invalid-two-url.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/invalid/invalid-two-url.rb
index 584aabfbb6..47e0918d95 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/invalid/invalid-two-url.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/invalid/invalid-two-url.rb
@@ -4,7 +4,7 @@ cask 'invalid-two-url' do
 
   url "file://#{TEST_FIXTURE_DIR}/cask/caffeine.zip"
   url 'https://brew.sh/caffeine.zip'
-  homepage 'https://brew.sh'
+  homepage 'https://brew.sh/'
 
   app 'Caffeine.app'
 end
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/invalid/invalid-two-version.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/invalid/invalid-two-version.rb
index 39b68c0385..b806c401f1 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/invalid/invalid-two-version.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/invalid/invalid-two-version.rb
@@ -4,7 +4,7 @@ cask 'invalid-two-version' do
   sha256 '67cdb8a02803ef37fdbf7e0be205863172e41a561ca446cd84f0d7ab35a99d94'
 
   url "file://#{TEST_FIXTURE_DIR}/cask/caffeine.zip"
-  homepage 'https://brew.sh'
+  homepage 'https://brew.sh/'
 
   app 'Caffeine.app'
 end
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/local-caffeine.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/local-caffeine.rb
index 55eee47694..8954b938fc 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/local-caffeine.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/local-caffeine.rb
@@ -3,7 +3,7 @@ cask 'local-caffeine' do
   sha256 '67cdb8a02803ef37fdbf7e0be205863172e41a561ca446cd84f0d7ab35a99d94'
 
   url "file://#{TEST_FIXTURE_DIR}/cask/caffeine.zip"
-  homepage 'https://brew.sh'
+  homepage 'https://brew.sh/'
 
   app 'Caffeine.app'
 end
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/local-transmission.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/local-transmission.rb
index 07db8ef4c8..8ce49a20db 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/local-transmission.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/local-transmission.rb
@@ -1,10 +1,10 @@
 cask 'local-transmission' do
-  name 'Transmission'
   version '2.61'
   sha256 'e44ffa103fbf83f55c8d0b1bea309a43b2880798dae8620b1ee8da5e1095ec68'
 
   url "file://#{TEST_FIXTURE_DIR}/cask/transmission-2.61.dmg"
-  homepage 'https://brew.sh'
+  name 'Transmission'
+  homepage 'https://brew.sh/'
 
   app 'Transmission.app'
 end
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/missing-checksum.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/missing-checksum.rb
index a77d923463..bfa15821a8 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/missing-checksum.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/missing-checksum.rb
@@ -2,7 +2,7 @@ cask 'missing-checksum' do
   version '1.2.3'
 
   url "file://#{TEST_FIXTURE_DIR}/cask/caffeine.zip"
-  homepage 'https://brew.sh'
+  homepage 'https://brew.sh/'
 
   app 'Caffeine.app'
 end
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/missing-url.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/missing-url.rb
index 59d6816b60..65a44012b0 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/missing-url.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/missing-url.rb
@@ -1,5 +1,5 @@
 cask 'missing-url' do
   version '1.2.3'
 
-  homepage 'https://brew.sh'
+  homepage 'https://brew.sh/'
 end
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/missing-version.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/missing-version.rb
index 5d53690c25..3ba32d4f7b 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/missing-version.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/missing-version.rb
@@ -1,4 +1,4 @@
 cask 'missing-version' do
-  url 'https://localhost/something.dmg'
-  homepage 'https://brew.sh'
+  url 'https://brew.sh/TestCask.dmg'
+  homepage 'https://brew.sh/'
 end
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/no-checksum.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/no-checksum.rb
index ea43f81cd6..d563137b54 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/no-checksum.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/no-checksum.rb
@@ -3,7 +3,7 @@ cask 'no-checksum' do
   sha256 :no_check
 
   url "file://#{TEST_FIXTURE_DIR}/cask/caffeine.zip"
-  homepage 'https://brew.sh'
+  homepage 'https://brew.sh/'
 
   app 'Caffeine.app'
 end
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/outdated/bad-checksum.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/outdated/bad-checksum.rb
index ea531f1232..8b223262ca 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/outdated/bad-checksum.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/outdated/bad-checksum.rb
@@ -3,7 +3,7 @@ cask 'bad-checksum' do
   sha256 '67cdb8a02803ef37fdbf7e0be205863172e41a561ca446cd84f0d7ab35a99d94'
 
   url "file://#{TEST_FIXTURE_DIR}/cask/caffeine.zip"
-  homepage 'https://brew.sh'
+  homepage 'https://brew.sh/'
 
   app 'Caffeine.app'
 end
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/outdated/local-caffeine.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/outdated/local-caffeine.rb
index 3f57b8d815..97a7372597 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/outdated/local-caffeine.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/outdated/local-caffeine.rb
@@ -3,7 +3,7 @@ cask 'local-caffeine' do
   sha256 '67cdb8a02803ef37fdbf7e0be205863172e41a561ca446cd84f0d7ab35a99d94'
 
   url "file://#{TEST_FIXTURE_DIR}/cask/caffeine.zip"
-  homepage 'https://brew.sh'
+  homepage 'https://brew.sh/'
 
   app 'Caffeine.app'
 end
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/outdated/local-transmission.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/outdated/local-transmission.rb
index ac59838985..a3f5377ee9 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/outdated/local-transmission.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/outdated/local-transmission.rb
@@ -3,7 +3,7 @@ cask 'local-transmission' do
   sha256 'e44ffa103fbf83f55c8d0b1bea309a43b2880798dae8620b1ee8da5e1095ec68'
 
   url "file://#{TEST_FIXTURE_DIR}/cask/transmission-2.61.dmg"
-  homepage 'https://brew.sh'
+  homepage 'https://brew.sh/'
 
   app 'Transmission.app'
 end
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/outdated/version-latest.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/outdated/version-latest.rb
index 253fb3d1ca..72664ce456 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/outdated/version-latest.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/outdated/version-latest.rb
@@ -3,7 +3,7 @@ cask 'version-latest' do
   sha256 :no_check
 
   url "file://#{TEST_FIXTURE_DIR}/cask/caffeines.zip"
-  homepage 'https://brew.sh'
+  homepage 'https://brew.sh/'
 
   app 'Caffeine Mini.app'
   app 'Caffeine Pro.app'
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/version-latest.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/version-latest.rb
index 253fb3d1ca..72664ce456 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/version-latest.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/version-latest.rb
@@ -3,7 +3,7 @@ cask 'version-latest' do
   sha256 :no_check
 
   url "file://#{TEST_FIXTURE_DIR}/cask/caffeines.zip"
-  homepage 'https://brew.sh'
+  homepage 'https://brew.sh/'
 
   app 'Caffeine Mini.app'
   app 'Caffeine Pro.app'
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/will-fail-if-upgraded.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/will-fail-if-upgraded.rb
index 76a7257479..06f4049c37 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/will-fail-if-upgraded.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/will-fail-if-upgraded.rb
@@ -3,7 +3,7 @@ cask 'will-fail-if-upgraded' do
   sha256 'e44ffa103fbf83f55c8d0b1bea309a43b2880798dae8620b1ee8da5e1095ec68'
 
   url "file://#{TEST_FIXTURE_DIR}/cask/transmission-2.61.dmg"
-  homepage 'https://brew.sh'
+  homepage 'https://brew.sh/'
 
   app 'container'
 end
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/with-alt-target.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/with-alt-target.rb
index 96c8c0ec86..099cb28fe7 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/with-alt-target.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/with-alt-target.rb
@@ -3,7 +3,7 @@ cask 'with-alt-target' do
   sha256 '67cdb8a02803ef37fdbf7e0be205863172e41a561ca446cd84f0d7ab35a99d94'
 
   url "file://#{TEST_FIXTURE_DIR}/cask/caffeine.zip"
-  homepage 'https://brew.sh'
+  homepage 'https://brew.sh/'
 
   app 'Caffeine.app', target: 'AnotherName.app'
 end
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/with-caveats.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/with-caveats.rb
index b30f56e331..ca516484bc 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/with-caveats.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/with-caveats.rb
@@ -3,7 +3,7 @@ cask 'with-caveats' do
   sha256 '67cdb8a02803ef37fdbf7e0be205863172e41a561ca446cd84f0d7ab35a99d94'
 
   url "file://#{TEST_FIXTURE_DIR}/cask/caffeine.zip"
-  homepage 'https://brew.sh'
+  homepage 'https://brew.sh/'
 
   app 'Caffeine.app'
 
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/with-conditional-caveats.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/with-conditional-caveats.rb
index a93c06fe9a..441b93e5a1 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/with-conditional-caveats.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/with-conditional-caveats.rb
@@ -3,12 +3,12 @@ cask 'with-conditional-caveats' do
   sha256 '67cdb8a02803ef37fdbf7e0be205863172e41a561ca446cd84f0d7ab35a99d94'
 
   url "file://#{TEST_FIXTURE_DIR}/cask/caffeine.zip"
-  homepage 'https://brew.sh'
+  homepage 'https://brew.sh/'
 
   app 'Caffeine.app'
 
   # a do block may print and use a DSL
   caveats do
-    puts 'This caveat is conditional' if false # rubocop:disable Lint/LiteralInCondition
+    puts 'This caveat is conditional' if false # rubocop:disable Lint/LiteralAsCondition
   end
 end
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/with-installable.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/with-installable.rb
index a22a2b05c4..ec0e22e6c0 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/with-installable.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/with-installable.rb
@@ -7,7 +7,7 @@ cask 'with-installable' do
 
   pkg 'MyFancyPkg/Fancy.pkg'
 
-  uninstall script:     { executable: 'MyFancyPkg/FancyUninstaller.tool', args: %w[--please] },
+  uninstall script:     { executable: 'MyFancyPkg/FancyUninstaller.tool', args: ['--please'] },
             quit:       'my.fancy.package.app',
             login_item: 'Fancy',
             delete:     [
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/with-installer-manual.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/with-installer-manual.rb
index cb06266f2a..bda4edd871 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/with-installer-manual.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/with-installer-manual.rb
@@ -3,7 +3,7 @@ cask 'with-installer-manual' do
   sha256 '67cdb8a02803ef37fdbf7e0be205863172e41a561ca446cd84f0d7ab35a99d94'
 
   url "file://#{TEST_FIXTURE_DIR}/cask/caffeine.zip"
-  homepage 'https://brew.sh'
+  homepage 'https://brew.sh/'
 
   installer manual: 'Caffeine.app'
 end
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/with-languages.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/with-languages.rb
index 53ae46c376..b8b57727be 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/with-languages.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/with-languages.rb
@@ -1,18 +1,18 @@
 cask 'with-languages' do
   version '1.2.3'
 
-  language "zh" do
-    sha256 "abc123"
-    "zh-CN"
+  language 'zh' do
+    sha256 'abc123'
+    'zh-CN'
   end
 
-  language "en-US", default: true do
-    sha256 "xyz789"
-    "en-US"
+  language 'en-US', default: true do
+    sha256 'xyz789'
+    'en-US'
   end
 
   url "file://#{TEST_FIXTURE_DIR}/cask/caffeine.zip"
-  homepage 'https://brew.sh'
+  homepage 'https://brew.sh/'
 
   app 'Caffeine.app'
 end
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/with-non-executable-binary.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/with-non-executable-binary.rb
index 2b17e7426b..7893acfe74 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/with-non-executable-binary.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/with-non-executable-binary.rb
@@ -5,5 +5,5 @@ cask 'with-non-executable-binary' do
   url "file://#{TEST_FIXTURE_DIR}/cask/naked_non_executable"
   homepage 'https://brew.sh/with-binary'
 
-  binary "naked_non_executable"
+  binary 'naked_non_executable'
 end
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/with-postflight-multi.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/with-postflight-multi.rb
index 76bfda644d..57989676df 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/with-postflight-multi.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/with-postflight-multi.rb
@@ -9,7 +9,6 @@ cask 'with-postflight-multi' do
 
   postflight do
   end
-
   postflight do
   end
 end
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/with-preflight-multi.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/with-preflight-multi.rb
index fe0887b534..a84021dde0 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/with-preflight-multi.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/with-preflight-multi.rb
@@ -9,7 +9,6 @@ cask 'with-preflight-multi' do
 
   preflight do
   end
-
   preflight do
   end
 end
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/with-two-apps-correct.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/with-two-apps-correct.rb
index ee7a23b3a3..819b21233a 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/with-two-apps-correct.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/with-two-apps-correct.rb
@@ -3,7 +3,7 @@ cask 'with-two-apps-correct' do
   sha256 '3178fbfd1ea5d87a2a0662a4eb599ebc9a03888e73f37538d9f3f6ee69d2368e'
 
   url "file://#{TEST_FIXTURE_DIR}/cask/caffeines.zip"
-  homepage 'https://brew.sh'
+  homepage 'https://brew.sh/'
 
   app 'Caffeine Mini.app'
   app 'Caffeine Pro.app'
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/with-two-apps-subdir.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/with-two-apps-subdir.rb
index 4935ef41c9..8ebf136057 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/with-two-apps-subdir.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/with-two-apps-subdir.rb
@@ -3,7 +3,7 @@ cask 'with-two-apps-subdir' do
   sha256 'd687c22a21c02bd8f07da9302c8292b93a04df9a929e3f04d09aea6c76f75c65'
 
   url "file://#{TEST_FIXTURE_DIR}/cask/caffeines-subdir.zip"
-  homepage 'https://brew.sh'
+  homepage 'https://brew.sh/'
 
   app 'Caffeines/Caffeine Mini.app'
   app 'Caffeines/Caffeine Pro.app'
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/with-uninstall-early-script.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/with-uninstall-early-script.rb
index b1dae4ef4b..07759f6f40 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/with-uninstall-early-script.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/with-uninstall-early-script.rb
@@ -7,5 +7,5 @@ cask 'with-uninstall-early-script' do
 
   pkg 'MyFancyPkg/Fancy.pkg'
 
-  uninstall early_script: { executable: 'MyFancyPkg/FancyUninstaller.tool', args: %w[--please] }
+  uninstall early_script: { executable: 'MyFancyPkg/FancyUninstaller.tool', args: ['--please'] }
 end
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/with-uninstall-multi.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/with-uninstall-multi.rb
index 9bdec660a1..f1e40b36a9 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/with-uninstall-multi.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/with-uninstall-multi.rb
@@ -8,6 +8,5 @@ cask 'with-uninstall-multi' do
   pkg 'MyFancyPkg/Fancy.pkg'
 
   uninstall rmdir: "#{TEST_TMPDIR}/empty_directory_path"
-
   uninstall delete: "#{TEST_TMPDIR}/empty_directory_path"
 end
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/with-uninstall-postflight-multi.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/with-uninstall-postflight-multi.rb
index 2b6056accf..0c92463ad2 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/with-uninstall-postflight-multi.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/with-uninstall-postflight-multi.rb
@@ -9,7 +9,6 @@ cask 'with-uninstall-postflight-multi' do
 
   uninstall_postflight do
   end
-
   uninstall_postflight do
   end
 end
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/with-uninstall-preflight-multi.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/with-uninstall-preflight-multi.rb
index f0629400d0..4d7aeae65a 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/with-uninstall-preflight-multi.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/with-uninstall-preflight-multi.rb
@@ -9,7 +9,6 @@ cask 'with-uninstall-preflight-multi' do
 
   uninstall_preflight do
   end
-
   uninstall_preflight do
   end
 end
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/with-uninstall-script-app.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/with-uninstall-script-app.rb
index f1d2be8d7d..8428462b59 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/with-uninstall-script-app.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/with-uninstall-script-app.rb
@@ -16,6 +16,6 @@ cask 'with-uninstall-script-app' do
 
   uninstall script: {
                       executable: "#{appdir}/MyFancyApp.app/uninstall.sh",
-                      sudo: false
+                      sudo:       false,
                     }
 end
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/with-uninstall-script.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/with-uninstall-script.rb
index 8602b1c135..c72493defb 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/with-uninstall-script.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/with-uninstall-script.rb
@@ -7,5 +7,5 @@ cask 'with-uninstall-script' do
 
   pkg 'MyFancyPkg/Fancy.pkg'
 
-  uninstall script: { executable: 'MyFancyPkg/FancyUninstaller.tool', args: %w[--please] }
+  uninstall script: { executable: 'MyFancyPkg/FancyUninstaller.tool', args: ['--please'] }
 end
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/with-zap-early-script.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/with-zap-early-script.rb
index bdc93783c3..e6fe3e8417 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/with-zap-early-script.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/with-zap-early-script.rb
@@ -7,5 +7,5 @@ cask 'with-zap-early-script' do
 
   pkg 'MyFancyPkg/Fancy.pkg'
 
-  zap early_script: { executable: 'MyFancyPkg/FancyUninstaller.tool', args: %w[--please] }
+  zap early_script: { executable: 'MyFancyPkg/FancyUninstaller.tool', args: ['--please'] }
 end
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/with-zap-multi.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/with-zap-multi.rb
index ef0b7f59ab..d6c1acda0d 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/with-zap-multi.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/with-zap-multi.rb
@@ -8,6 +8,5 @@ cask 'with-zap-multi' do
   pkg 'MyFancyPkg/Fancy.pkg'
 
   zap rmdir: "#{TEST_TMPDIR}/empty_directory_path"
-
   zap delete: "#{TEST_TMPDIR}/empty_directory_path"
 end
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/with-zap-script.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/with-zap-script.rb
index 2e5f02140e..44d499dc1b 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/with-zap-script.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/with-zap-script.rb
@@ -7,5 +7,5 @@ cask 'with-zap-script' do
 
   pkg 'MyFancyPkg/Fancy.pkg'
 
-  zap script: { executable: 'MyFancyPkg/FancyUninstaller.tool', args: %w[--please] }
+  zap script: { executable: 'MyFancyPkg/FancyUninstaller.tool', args: ['--please'] }
 end
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/with-zap.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/with-zap.rb
index 42d5cdd1aa..8fb9ee9227 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/with-zap.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/with-zap.rb
@@ -11,7 +11,7 @@ cask 'with-zap' do
 
   zap script:     {
                     executable: 'MyFancyPkg/FancyUninstaller.tool',
-                    args:       %w[--please],
+                    args:       ['--please'],
                   },
       quit:       'my.fancy.package.app',
       login_item: 'Fancy',
diff --git a/Library/Homebrew/test/support/fixtures/cask/Casks/without-languages.rb b/Library/Homebrew/test/support/fixtures/cask/Casks/without-languages.rb
index 5ea02ae790..b6a1426c9b 100644
--- a/Library/Homebrew/test/support/fixtures/cask/Casks/without-languages.rb
+++ b/Library/Homebrew/test/support/fixtures/cask/Casks/without-languages.rb
@@ -3,7 +3,7 @@ cask 'without-languages' do
   sha256 '67cdb8a02803ef37fdbf7e0be205863172e41a561ca446cd84f0d7ab35a99d94'
 
   url "file://#{TEST_FIXTURE_DIR}/cask/caffeine.zip"
-  homepage 'https://brew.sh'
+  homepage 'https://brew.sh/'
 
   app 'Caffeine.app'
 end