add a test

Signed-off-by: Morgan Kleene <[email protected]>

Author: mkleene

lib/tests/mocha/unit/assertions.spec.ts

@@ -1,5 +1,6 @@
 // tests for assertions.ts
 
+
 import { expect } from 'chai';
 
 import * as assertions from '../../../tdf3/src/assertions.js';
@@ -21,5 +22,33 @@ describe('assertions', () => {
         })
       ).to.be.true;
     });
+
+    it('normalizes assertions', async () => {
+      let assertion: any = {
+        appliesToState: "unencrypted",
+        id: "system-metadata",
+        binding: {
+          method: "jws",
+          signature: "test-signature"
+        },
+        signingKey: {
+          "alg": "ES256",
+          "key": new Uint8Array([1, 2, 3, 4, 5, 6, 7, 8, 9, 10]),
+        },
+        scope: "payload",
+        statement: {
+          format: "json",
+          schema: "system-metadata-v1",
+          value: "{\"tdf_spec_version\":\"4.3.0\",\"creation_date\":\"2025-07-23T09:25:51.255364+02:00\",\"operating_system\":\"Mac OS X\",\"sdk_version\":\"Java-0.8.2-SNAPSHOT\",\"java_version\":\"17.0.14\",\"architecture\":\"aarch64\"}"
+        },
+        type: "other"
+      };
+
+      let h1 = await assertions.hash(assertion);
+      delete assertion.signingKey;
+      let h2 = await assertions.hash(assertion);
+
+      expect(h1).to.equal(h2);
+    });
   });
 });