Fixes [weekly 1.2k] [npm_and_yarn] YN00xx errors

npm_and_yarn/lib/dependabot/npm_and_yarn.rb

@@ -165,6 +165,8 @@ module NpmAndYarn
       REQUIREMENT_NOT_PROVIDED: /(?<dep>.*)(.*?)doesn't provide (?<pkg>.*)(.*?), requested by (?<parent>.*)/
     }.freeze, T::Hash[String, Regexp])
 
+    YN0086_DEPS_RESOLUTION_FAILED = /peer dependencies are incorrectly met/
+
     # registry returns malformed response
     REGISTRY_NOT_REACHABLE = /Received malformed response from registry for "(?<ver>.*)". The registry may be down./
 
@@ -351,6 +353,13 @@ def self.sanitize_resolvability_message(error_message, dependencies, yarn_lock)
             Dependabot::DependencyNotFound.new(message)
           end
         }
+      },
+      "YN0086" => {
+        message: "deps resolution failed",
+        handler: lambda { |message, _error, _params|
+          msg = message.match(YN0086_DEPS_RESOLUTION_FAILED)
+          Dependabot::DependencyFileNotResolvable.new(msg || message)
+        }
       }
     }.freeze, T::Hash[String, {
       message: T.any(String, NilClass),

npm_and_yarn/spec/dependabot/npm_and_yarn/yarn_error_handler_spec.rb

@@ -133,6 +133,28 @@
       end
     end
 
+    context "when the error message contains a deps resolution failed error" do
+      let(:error_message) do
+        "[YN0001]: Exception error, Detail: ➤ YN0000: · Yarn 4.5.1" \
+          "➤ YN0000: ┌ Resolution step" \
+          "::group::Resolution step" \
+          "➤ YN0085: │ + @testing-library/user-event@npm:14.6.1" \
+          "::endgroup::" \
+          "➤ YN0000: └ Completed in 0s 466ms" \
+          "➤ YN0060: │ react-dom is ...... non-overlapping ranges." \
+          "➤ YN0060: │ redux is listed by your non-overlapping ranges." \
+          "➤ YN0086: │ Some peer dependencies are incorrectly met by your project;" \
+          "➤ YN0086: │ Some peer dependencies are incorrectly met by dependencies;" \
+      end
+
+      it "raises a DependencyFileNotResolvable error" do
+        expect do
+          error_handler.handle_yarn_error(error, { yarn_lock: yarn_lock })
+        end.to raise_error(Dependabot::DependencyFileNotResolvable,
+                           /peer dependencies are incorrectly met/)
+      end
+    end
+
     context "when the error message contains SUB_DEP_LOCAL_PATH_TEXT" do
       let(:error_message) { "Some error occurred: refers to a non-existing file" }