fix broken tests

libs/tools/generator/core/src/services/generator-metadata-provider.spec.ts

@@ -285,7 +285,7 @@ describe("GeneratorMetadataProvider", () => {
       const provider = new GeneratorMetadataProvider(SystemProvider, ApplicationProvider, []);
 
       // `any` cast required because this test subverts the type system
-      expect(() => provider.algorithms({} as any)).toThrow("algorithm or category required");
+      expect(() => provider.algorithms({} as any)).toThrow("algorithm or type required");
     });
   });
 
@@ -369,7 +369,7 @@ describe("GeneratorMetadataProvider", () => {
       const provider = new GeneratorMetadataProvider(SystemProvider, ApplicationProvider, []);
 
       expect(() => provider.algorithms$({} as any, { account$: SomeAccount$ })).toThrow(
-        "algorithm or category required",
+        "algorithm or type required",
       );
     });
   });

libs/tools/generator/core/src/services/generator-metadata-provider.ts

@@ -215,7 +215,7 @@ export class GeneratorMetadataProvider {
           return algorithm;
         }
 
-        const algorithms = this.algorithms({ type: type });
+        const algorithms = type ? this.algorithms({ type: type }) : [];
         // `?? null` because logging types must be `Jsonify<T>`
         const defaultAlgorithm = algorithms.find(isAvailable) ?? null;
         this.log.debug(

libs/tools/generator/core/src/types/metadata-request.ts

@@ -9,5 +9,5 @@ export function isAlgorithmRequest(request: MetadataRequest): request is Algorit
 }
 
 export function isTypeRequest(request: MetadataRequest): request is TypeRequest {
-  return !!request.algorithm;
+  return !!request.type;
 }