Add ADR 027 test vector

packages/proto-signing/src/adr27.spec.ts

@@ -46,5 +46,67 @@ describe("adr27", () => {
       expect(omitDefault(Review.values["ACCEPTED"])).toEqual(Review.values["ACCEPTED"]);
       expect(omitDefault(Review.values["UNSPECIFIED"])).toEqual(null);
     });
+
+    it("can be used to reproduce ADR 027 test vector", () => {
+      const proto = `
+        // Article.proto
+
+        package blog;
+        syntax = "proto3";
+
+        enum Type {
+          UNSPECIFIED = 0;
+          IMAGES = 1;
+          NEWS = 2;
+        };
+
+        enum Review {
+          UNSPECIFIED = 0;
+          ACCEPTED = 1;
+          REJECTED = 2;
+        };
+
+        message Article {
+          string title = 1;
+          string description = 2;
+          uint64 created = 3;
+          uint64 updated = 4;
+          bool public = 5;
+          bool promoted = 6;
+          Type type = 7;
+          Review review = 8;
+          repeated string comments = 9;
+          repeated string backlinks = 10;
+        };
+      `;
+      const root = parse(proto).root;
+
+      // eslint-disable-next-line @typescript-eslint/naming-convention
+      const Article = root.lookupType("blog.Article");
+      // eslint-disable-next-line @typescript-eslint/naming-convention
+      const Type = root.lookupEnum("blog.Type");
+      // eslint-disable-next-line @typescript-eslint/naming-convention
+      const Review = root.lookupEnum("blog.Review");
+
+      const expected = fromHex(
+        "0a1654686520776f726c64206e65656473206368616e676518e8bebec8bc2e280138024a084e696365206f6e654a095468616e6b20796f75",
+      );
+
+      const serialization = Uint8Array.from(
+        Article.encode({
+          title: omitDefault("The world needs change"),
+          description: omitDefault(""),
+          created: omitDefault(1596806111080),
+          updated: omitDefault(0),
+          public: omitDefault(true),
+          promoted: omitDefault(false),
+          type: omitDefault(Type.values["NEWS"]),
+          review: omitDefault(Review.values["UNSPECIFIED"]),
+          comments: omitDefault(["Nice one", "Thank you"]),
+          backlinks: omitDefault([]),
+        }).finish(),
+      );
+      expect(serialization).toEqual(expected);
+    });
   });
 });