test: add more object utils test + remove undefined value when use with invertKeysAndValues fnc (#4764)

### Description
Add filter `undefined/null` value when use with utils
**invertKeysAndValues** function
Add more test at `objects.test.ts`
<!--
What's included in this PR?
-->

### Drive-by changes
```diff
return Object.fromEntries(
    Object.entries(data)
+      .filter(([_, value]) => value !== undefined && value !== null) // Filter out undefined and null values
      .map(([key, value]) => [value, key]),
);
```
<!--
Are there any minor or drive-by changes also included?
-->

### Related issues
None
<!--
- Fixes #[issue number here]
-->

### Backward compatibility
Currently, nowhere call this **invertKeysAndValues** func
<!--
Are these changes backward compatible? Are there any infrastructure
implications, e.g. changes that would prohibit deploying older commits
using this infra tooling?

Yes/No
-->

### Testing
Yes, more tests.
<!--
What kind of testing have these changes undergone?

None/Manual/Unit Tests
-->

---------

Co-authored-by: J M Rossy <jm.rossy@gmail.com>

.changeset/tidy-meals-add.md

@@ -0,0 +1,5 @@
+---
+"@hyperlane-xyz/utils": patch
+---
+
+Filter undefined/null values in invertKeysAndValues function

typescript/utils/src/objects.test.ts

@@ -1,12 +1,24 @@
 import { expect } from 'chai';
 
 import {
+  arrayToObject,
   deepCopy,
   deepEquals,
+  deepFind,
   diffObjMerge,
+  invertKeysAndValues,
+  isObjEmpty,
   isObject,
+  objFilter,
+  objKeys,
+  objLength,
+  objMap,
+  objMapEntries,
   objMerge,
   objOmit,
+  pick,
+  promiseObjAll,
+  stringifyObject,
 } from './objects.js';
 
 describe('Object utilities', () => {
@@ -83,6 +95,124 @@ describe('Object utilities', () => {
     expect(isObject(42)).to.be.false;
   });
 
+  it('objKeys', () => {
+    const obj = { a: 1, b: 2 };
+    expect(objKeys(obj)).to.eql(['a', 'b']);
+  });
+
+  it('objLength', () => {
+    const obj = { a: 1, b: 2 };
+    expect(objLength(obj)).to.equal(2);
+  });
+
+  it('isObjEmpty', () => {
+    expect(isObjEmpty({})).to.be.true;
+    expect(isObjEmpty({ a: 1 })).to.be.false;
+  });
+
+  it('objMapEntries', () => {
+    const obj = { a: 1, b: 2 };
+    const result = objMapEntries(obj, (k, v) => v * 2);
+    expect(result).to.eql([
+      ['a', 2],
+      ['b', 4],
+    ]);
+  });
+
+  it('objMap', () => {
+    const obj = { a: 1, b: 2 };
+    const result = objMap(obj, (k, v) => v * 2);
+    expect(result).to.eql({ a: 2, b: 4 });
+  });
+
+  it('objFilter', () => {
+    const obj = { a: 1, b: 2, c: 3 };
+    const result = objFilter(obj, (k: string, v: number): v is number => v > 1);
+    expect(result).to.eql({ b: 2, c: 3 });
+  });
+
+  it('deepFind should find nested object', () => {
+    const obj = { a: { b: { c: 3 } } };
+    const result = deepFind(
+      obj,
+      (v: any): v is { c: number } => v && v.c === 3,
+    );
+    expect(result).to.eql({ c: 3 });
+  });
+
+  it('deepFind should return undefined if object is not found', () => {
+    const obj = { a: { b: { c: 3 } } };
+    const result = deepFind(
+      obj,
+      (v: any): v is { c: number } => v && v.c === 4,
+    );
+    expect(result).to.be.undefined;
+  });
+
+  it('promiseObjAll', async () => {
+    const obj = { a: Promise.resolve(1), b: Promise.resolve(2) };
+    const result = await promiseObjAll(obj);
+    expect(result).to.eql({ a: 1, b: 2 });
+  });
+
+  it('pick should return a subset of the object', () => {
+    const obj = { a: 1, b: 2, c: 3 };
+    const result = pick(obj, ['a', 'c']);
+    expect(result).to.eql({ a: 1, c: 3 });
+  });
+
+  it('pick should return an empty object if no keys are provided', () => {
+    const obj = { a: 1, b: 2, c: 3 };
+    const result = pick(obj, []);
+    expect(result).to.eql({});
+  });
+
+  it("pick should return an empty object if the object doesn't contain the keys", () => {
+    const obj = { c: 4, d: 5 };
+    const result = pick(obj as any, ['a', 'b']);
+    expect(result).to.eql({});
+  });
+
+  describe('invertKeysAndValues', () => {
+    it('invertKeysAndValues should invert the keys and values', () => {
+      const obj = { a: '1', b: '2' };
+      const result = invertKeysAndValues(obj);
+      expect(result).to.eql({ '1': 'a', '2': 'b' });
+    });
+
+    it('invertKeysAndValues should return an empty object if the object is empty', () => {
+      const obj = {};
+      const result = invertKeysAndValues(obj);
+      expect(result).to.eql({});
+    });
+
+    it('invertKeysAndValues should return an object if the object has duplicate values', () => {
+      const obj = { a: '1', b: '1' };
+      const result = invertKeysAndValues(obj);
+      expect(result).to.eql({ '1': 'b' });
+    });
+
+    it('invertKeysAndValues should return an object if the object has undefined/null values', () => {
+      const obj = { a: '1', b: '2', c: undefined, d: null, e: 0 };
+      const result = invertKeysAndValues(obj);
+      expect(result).to.eql({ '1': 'a', '2': 'b', '0': 'e' });
+    });
+  });
+
+  it('arrayToObject', () => {
+    const keys = ['a', 'b'];
+    const result = arrayToObject(keys);
+    expect(result).to.eql({ a: true, b: true });
+  });
+
+  it('stringifyObject', () => {
+    const obj = { a: 1, b: 2 };
+    const jsonResult = stringifyObject(obj, 'json');
+    expect(jsonResult).to.equal('{"a":1,"b":2}');
+    const yamlResult = stringifyObject(obj, 'yaml');
+    expect(yamlResult).to.include('a: 1\nb: 2');
+  });
+
   describe('diffObjMerge', () => {
     it('should merge objects with equal values', () => {
       const actual = { a: 1, b: 2 };

typescript/utils/src/objects.ts

@@ -192,7 +192,9 @@ export function objOmit<T extends Record<string, any> = any>(
 
 export function invertKeysAndValues(data: any) {
   return Object.fromEntries(
-    Object.entries(data).map(([key, value]) => [value, key]),
+    Object.entries(data)
+      .filter(([_, value]) => value !== undefined && value !== null) // Filter out undefined and null values
+      .map(([key, value]) => [value, key]),
   );
 }