feat(core): Add new matchers and improve negation messaging

ts/namespaces/object.ts

@@ -1,4 +1,4 @@
-import { Assertion } from '../smartexpect.classes.assertion.js';
+import { Assertion, AnyMatcher, AnythingMatcher } from '../smartexpect.classes.assertion.js';
 import * as plugins from '../plugins.js';
 
 /**
@@ -10,21 +10,43 @@ export class ObjectMatchers<T extends object> {
   toEqual(expected: any) {
     return this.assertion.customAssertion(
       (v) => plugins.fastDeepEqual(v, expected),
-      `Expected objects to be deeply equal to ${JSON.stringify(expected)}`
+      (v) =>
+        `Expected objects to be deeply equal to ${JSON.stringify(expected, null, 2)}` +
+        `\nReceived: ${JSON.stringify(v, null, 2)}`
     );
   }
 
   toMatchObject(expected: object) {
     return this.assertion.customAssertion(
       (v) => {
+        const obj = v as any;
         for (const key of Object.keys(expected)) {
-          if (!plugins.fastDeepEqual((v as any)[key], (expected as any)[key])) {
+          const expectedVal = (expected as any)[key];
+          const actualVal = obj[key];
+          if (expectedVal instanceof AnyMatcher) {
+            const ctor = expectedVal.expectedConstructor;
+            if (ctor === Number) {
+              if (typeof actualVal !== 'number') return false;
+            } else if (ctor === String) {
+              if (typeof actualVal !== 'string') return false;
+            } else if (ctor === Boolean) {
+              if (typeof actualVal !== 'boolean') return false;
+            } else {
+              if (!(actualVal instanceof ctor)) return false;
+            }
+          } else if (expectedVal instanceof AnythingMatcher) {
+            if (actualVal === null || actualVal === undefined) {
+              return false;
+            }
+          } else if (!plugins.fastDeepEqual(actualVal, expectedVal)) {
             return false;
           }
         }
         return true;
       },
-      `Expected object to match properties ${JSON.stringify(expected)}`
+      (v) =>
+        `Expected object to match properties ${JSON.stringify(expected, null, 2)}` +
+        `\nReceived: ${JSON.stringify(v, null, 2)}`
     );
   }
 
@@ -86,4 +108,25 @@ export class ObjectMatchers<T extends object> {
       `Expected value to be null or undefined`
     );
   }
+  /**
+   * Checks own property only (not inherited)
+   */
+  toHaveOwnProperty(property: string, value?: any) {
+    return this.assertion.customAssertion(
+      (v) => {
+        const obj = v as any;
+        if (!Object.prototype.hasOwnProperty.call(obj, property)) {
+          return false;
+        }
+        if (arguments.length === 2) {
+          return plugins.fastDeepEqual(obj[property], value);
+        }
+        return true;
+      },
+      (v) =>
+        `Expected object to have own property ${property}` +
+        (value !== undefined ? ` with value ${JSON.stringify(value)}` : ``) +
+        `\nReceived: ${JSON.stringify(v, null, 2)}`
+    );
+  }
 }