test: Use correct fields for `PackageRule` type (#33072)

lib/config/index.spec.ts

@@ -32,14 +32,23 @@ describe('config/index', () => {
     it('merges packageRules', () => {
       const parentConfig = { ...defaultConfig };
       Object.assign(parentConfig, {
-        packageRules: [{ a: 1 }, { a: 2 }],
+        packageRules: [
+          { matchPackageNames: ['pkg1'] },
+          { matchPackageNames: ['pkg2'] },
+        ],
       });
       const childConfig = {
-        packageRules: [{ a: 3 }, { a: 4 }],
+        packageRules: [
+          { matchPackageNames: ['pkg3'] },
+          { matchPackageNames: ['pkg4'] },
+        ],
       };
       const config = mergeChildConfig(parentConfig, childConfig);
-      expect(config.packageRules.map((rule) => rule.a)).toMatchObject([
-        1, 2, 3, 4,
+      expect(config.packageRules).toMatchObject([
+        { matchPackageNames: ['pkg1'] },
+        { matchPackageNames: ['pkg2'] },
+        { matchPackageNames: ['pkg3'] },
+        { matchPackageNames: ['pkg4'] },
       ]);
     });
 
@@ -95,9 +104,15 @@ describe('config/index', () => {
 
     it('handles null child packageRules', () => {
       const parentConfig = { ...defaultConfig };
-      parentConfig.packageRules = [{ a: 3 }, { a: 4 }];
+      parentConfig.packageRules = [
+        { matchPackageNames: ['pkg1'] },
+        { matchPackageNames: ['pkg2'] },
+      ];
       const config = mergeChildConfig(parentConfig, {});
-      expect(config.packageRules).toHaveLength(2);
+      expect(config.packageRules).toMatchObject([
+        { matchPackageNames: ['pkg1'] },
+        { matchPackageNames: ['pkg2'] },
+      ]);
     });
 
     it('handles undefined childConfig', () => {