feat(object): add toHaveOwnProperty method and improve property-path matching in object assertions

changelog.md

@@ -1,5 +1,13 @@
 # Changelog
 
+## 2025-04-30 - 2.4.0 - feat(object)
+add toHaveOwnProperty method and improve property-path matching in object assertions
+
+- Added 'toHaveOwnProperty' as a direct method on Assertion to check for own properties
+- Enhanced property path evaluation in 'toHaveProperty' to handle nested keys more robustly
+- Renamed test file to maintain consistent naming for expect.any tests
+- Introduced scratch.js for manual testing and debugging of property matchers
+
 ## 2025-04-30 - 2.3.3 - fix(tests)
 Fix test file naming inconsistencies
 

scratch.js

@@ -0,0 +1,16 @@
+import * as smartexpect from './dist_ts/index.js';
+class Foo { constructor(){ this.foo='bar'; } }
+console.log('foo in instance:', 'foo' in new Foo());
+console.log('hasOwn foo:', Object.prototype.hasOwnProperty.call(new Foo(), 'foo'));
+try {
+  smartexpect.expect(new Foo()).object.toHaveProperty('foo');
+  console.log('toHaveProperty passed');
+} catch (err) {
+  console.error('toHaveProperty failed:', err.message);
+}
+try {
+  smartexpect.expect(new Foo()).object.toHaveOwnProperty('foo');
+  console.log('toHaveOwnProperty passed');
+} catch (err) {
+  console.error('toHaveOwnProperty failed:', err.message);
+}

test/test.propertypath.ts

@@ -2,7 +2,9 @@ import { tap, expect as tExpect } from '@push.rocks/tapbundle';
 import * as smartexpect from '../dist_ts/index.js';
 
 tap.test('toHaveProperty nested path via dot notation', async () => {
-  const testObject = { level1: { level2: { level3: 'value' } } };
+  const testObject = { level1: { level2: { level3: 'value' }},  publicTest: 'hi' };
+
+  smartexpect.expect(testObject).object.toHaveProperty('publicTest');
   // Existence check
   smartexpect.expect(testObject).object.toHaveProperty('level1.level2.level3');
   // Value check
@@ -11,4 +13,4 @@ tap.test('toHaveProperty nested path via dot notation', async () => {
   smartexpect.expect(testObject).not.object.toHaveProperty('level1.level2.missing');
 });
 
-export default tap.start();
+export default tap.start();

ts/00_commitinfo_data.ts

@@ -3,6 +3,6 @@
  */
 export const commitinfo = {
   name: '@push.rocks/smartexpect',
-  version: '2.3.3',
+  version: '2.4.0',
   description: 'A testing library to manage expectations in code, offering both synchronous and asynchronous assertion methods.'
 }

ts/namespaces/object.ts

@@ -62,13 +62,21 @@ export class ObjectMatchers<T extends object, M extends TExecutionType> {
     return this.assertion.customAssertion(
       (v) => {
         const obj = v as any;
+        // first check for a literal property (including inherited)
+        if (property in obj) {
+          if (arguments.length === 2) {
+            return plugins.fastDeepEqual(obj[property], value);
+          }
+          return true;
+        }
+        // no direct key, try nested path via dot notation
         const path = property.split('.');
         let current = obj;
         for (const key of path) {
           if (current == null || !(key in current)) {
             return false;
           }
-          current = current[key];
+          current = (current as any)[key];
         }
         if (arguments.length === 2) {
           return plugins.fastDeepEqual(current, value);

ts/smartexpect.classes.assertion.ts

@@ -356,6 +356,7 @@ export class Assertion<T = unknown, M extends TExecutionType = 'sync'> {
   public toMatch(regex: RegExp) { return this.string.toMatch(regex); }
   public toBeOneOf(values: any[]) { return this.string.toBeOneOf(values as string[]); }
   public toHaveProperty(property: string, value?: any) { return this.object.toHaveProperty(property, value); }
+  public toHaveOwnProperty(property: string, value?: any) { return this.object.toHaveOwnProperty(property, value); }
   public toMatchObject(expected: object) { return this.object.toMatchObject(expected); }
   public toBeInstanceOf(constructor: any) { return this.object.toBeInstanceOf(constructor); }
   public toHaveDeepProperty(path: string[]) { return this.object.toHaveDeepProperty(path); }