Only 'verified' stanzas with 0 or >1 path components should end with "/"

Handle good things like:

```ruby
url "https://example.org/download",
    verified: "example.org/download" # This is fine.
```

And bad things like:

```ruby
url "https://example.org/",
    verified: "example.org" # This should end with a slash.
```

Library/Homebrew/rubocops/cask/url.rb

@@ -24,6 +24,7 @@ class Url < Base
         def on_url_stanza(stanza)
           return if stanza.stanza_node.block_type?
 
+          url_string = stanza.stanza_node.first_argument.str_content
           hash_node = stanza.stanza_node.last_argument
           return unless hash_node.hash_type?
 
@@ -40,7 +41,9 @@ def on_url_stanza(stanza)
               end
             end
 
-            next unless value_node.str_content.gsub(%r{https?://}, "").include?("/") # Skip if the stanza has no path.
+            # Skip if the URL and the verified value are the same.
+            next if value_node.str_content == without_scheme(url_string)
+            # Skip if the verified value ends with a slash.
             next if value_node.str_content.end_with?("/")
 
             add_offense(
@@ -51,6 +54,10 @@ def on_url_stanza(stanza)
             end
           end
         end
+
+        def without_scheme(stanza)
+          stanza.delete_prefix("https://").delete_prefix("http://")
+        end
       end
     end
   end

Library/Homebrew/test/rubocops/cask/url_spec.rb

@@ -14,7 +14,7 @@
       <<~CASK
         cask "foo" do
           url "https://example.com/download/foo-v1.2.0.dmg",
-              verified: "example.com"
+              verified: "example.com/download/"
         end
       CASK
     end
@@ -27,7 +27,7 @@
       <<~CASK
         cask "foo" do
           url "https://example.com/download/foo-v1.2.0.dmg",
-              verified: "https://example.com"
+              verified: "https://example.com/download/"
         end
       CASK
     end
@@ -38,15 +38,120 @@
         severity: :convention,
         line:     3,
         column:   16,
-        source:   "\"https://example.com\"",
+        source:   "\"https://example.com/download/\"",
       }]
     end
 
     let(:correct_source) do
       <<~CASK
         cask "foo" do
           url "https://example.com/download/foo-v1.2.0.dmg",
-              verified: "example.com"
+              verified: "example.com/download/"
+        end
+      CASK
+    end
+
+    include_examples "reports offenses"
+    include_examples "autocorrects source"
+  end
+
+  context "when url 'verified' value does not have a path component" do
+    let(:source) do
+      <<~CASK
+        cask "foo" do
+          url "https://example.org/",
+            verified: "example.org/"
+        end
+      CASK
+    end
+
+    include_examples "does not report any offenses"
+  end
+
+  context "when url 'verified' value does not have a path component but doesn't end with a /" do
+    let(:source) do
+      <<~CASK
+        cask "foo" do
+          url "https://example.org/",
+              verified: "example.org"
+        end
+      CASK
+    end
+
+    let(:expected_offenses) do
+      [{
+        message:  "Verified URL parameter value should end with a /.",
+        severity: :convention,
+        line:     3,
+        column:   16,
+        source:   "\"example.org\"",
+      }]
+    end
+
+    let(:correct_source) do
+      <<~CASK
+        cask "foo" do
+          url "https://example.org/",
+              verified: "example.org/"
+        end
+      CASK
+    end
+
+    include_examples "reports offenses"
+    include_examples "autocorrects source"
+  end
+
+  context "when url 'verified' value has a single path component" do
+    let(:source) do
+      <<~CASK
+        cask "foo" do
+          url "https://github.com/Foo",
+            verified: "github.com/Foo"
+        end
+      CASK
+    end
+
+    include_examples "does not report any offenses"
+  end
+
+  context "when the url ends with a / and the verified value does too" do
+    let(:source) do
+      <<~CASK
+        cask "foo" do
+          url "https://github.com/",
+              verified: "github.com/"
+        end
+      CASK
+    end
+
+    include_examples "does not report any offenses"
+  end
+
+  context "when the url ends with a / and the verified value does not" do
+    let(:source) do
+      <<~CASK
+        cask "foo" do
+          url "https://github.com/",
+              verified: "github.com"
+        end
+      CASK
+    end
+
+    let(:expected_offenses) do
+      [{
+        message:  "Verified URL parameter value should end with a /.",
+        severity: :convention,
+        line:     3,
+        column:   16,
+        source:   "\"github.com\"",
+      }]
+    end
+
+    let(:correct_source) do
+      <<~CASK
+        cask "foo" do
+          url "https://github.com/",
+              verified: "github.com/"
         end
       CASK
     end
@@ -59,8 +164,8 @@
     let(:source) do
       <<~CASK
         cask "foo" do
-          url "https://example.com/download/foo-v1.2.0.dmg",
-              verified: "example.com/download/"
+          url "https://github.com/Foo/foo/releases/download/v1.2.0/foo-v1.2.0.dmg",
+              verified: "github.com/Foo/foo/"
         end
       CASK
     end
@@ -72,8 +177,8 @@
     let(:source) do
       <<~CASK
         cask "foo" do
-          url "https://example.com/download/foo-v1.2.0.dmg",
-              verified: "example.com/download"
+          url "https://github.com/Foo/foo/releases/download/v1.2.0/foo-v1.2.0.dmg",
+              verified: "github.com/Foo/foo"
         end
       CASK
     end
@@ -84,15 +189,15 @@
         severity: :convention,
         line:     3,
         column:   16,
-        source:   "\"example.com/download\"",
+        source:   "\"github.com/Foo/foo\"",
       }]
     end
 
     let(:correct_source) do
       <<~CASK
         cask "foo" do
-          url "https://example.com/download/foo-v1.2.0.dmg",
-              verified: "example.com/download/"
+          url "https://github.com/Foo/foo/releases/download/v1.2.0/foo-v1.2.0.dmg",
+              verified: "github.com/Foo/foo/"
         end
       CASK
     end