update test

packages/agent/tests/local-key-manager.spec.ts

@@ -1,9 +1,10 @@
 import type { Jwk } from '@web5/crypto';
 import type { BearerDid } from '@web5/dids';
 
+import sinon from 'sinon';
 import { expect } from 'chai';
 import { Convert } from '@web5/common';
-import { CryptoUtils } from '@web5/crypto';
+import { CryptoUtils, Ed25519 } from '@web5/crypto';
 
 import type { Web5PlatformAgent } from '../src/types/agent.js';
 
@@ -106,6 +107,47 @@ describe('LocalKeyManager', () => {
         });
       });
 
+      describe('importKey()', () => {
+        it('imports a key and returns a key URI', async () => {
+          // generate a key and import it
+          const key = await Ed25519.generateKey();
+          const keyUri = await testHarness.agent.keyManager.importKey({ key });
+
+          // fetch the key using the keyUri
+          const importedKey = await testHarness.agent.keyManager.exportKey({ keyUri });
+
+          // validate the key
+          expect(importedKey).to.exist;
+          expect(importedKey).to.deep.equal(key);
+        });
+
+        it('does not attempt to import a key that is already in the key store', async () => {
+          // scenario: a key already exists within your key store, you attempt to import it again
+          // the method should not throw an error, but should also not attempt to store the key again
+
+          const storeSetSpy = sinon.spy(testHarness.agent.keyManager['_keyStore'], 'set');
+
+          // generate a key within the key manager
+          const keyUri = await testHarness.agent.keyManager.generateKey({ algorithm: 'secp256k1' });
+          expect(storeSetSpy.callCount).to.equal(1);
+
+          // export the key
+          const exportedKey = await testHarness.agent.keyManager.exportKey({ keyUri });
+
+          // reset the spy count
+          storeSetSpy.resetHistory();
+
+          // attempt to import the same key, will not fail
+          await testHarness.agent.keyManager.importKey({ key: exportedKey });
+          expect(storeSetSpy.callCount).to.equal(0); //
+
+          // sanity import a key generated outside the key manager
+          const key = await Ed25519.generateKey();
+          await testHarness.agent.keyManager.importKey({ key });
+          expect(storeSetSpy.callCount).to.equal(1);
+        });
+      });
+
       describe('exportKey()', () => {
         it('exports a private key as a JWK', async () => {
           const keyUri = await testHarness.agent.keyManager.generateKey({ algorithm: 'secp256k1' });