Gradle: fix comparison of the prefix version range (#7975)

gradle/lib/dependabot/gradle/version.rb

@@ -153,6 +153,10 @@ def pad_for_comparison(prefixed_tokens, other_prefixed_tokens)
       end
 
       def compare_prefixed_token(prefix:, token:, other_prefix:, other_token:)
+        return 1 if token == "+" && other_token != "+"
+        return -1 if other_token == "+" && token != "+"
+        return 0 if token == "+" && other_token == "+"
+
         token_type = token.match?(/^\d+$/) ? :number : :qualifier
         other_token_type = other_token.match?(/^\d+$/) ? :number : :qualifier
 

gradle/spec/dependabot/gradle/version_spec.rb

@@ -293,6 +293,31 @@
           let(:other_version) { described_class.new("1-alpha-1") }
           it { is_expected.to eq(0) }
         end
+
+        context "dynamic minor version" do
+          let(:version) { described_class.new("1.+") }
+
+          it "is greater than a non-dynamic version" do
+            expect(version).to be > described_class.new("1.11")
+            expect(version).to be > described_class.new("1.11.1")
+          end
+
+          it "is less than the next major version" do
+            expect(version).to be < described_class.new("2.0")
+          end
+        end
+
+        context "dynamic patch version" do
+          let(:version) { described_class.new("1.1.+") }
+
+          it "is greater than a non-dynamic version" do
+            expect(version).to be > described_class.new("1.1.2")
+          end
+
+          it "is less than the next minor version" do
+            expect(version).to be < described_class.new("1.2")
+          end
+        end
       end
     end
   end