diff --git a/tests/validation/utils.test.ts b/tests/validation/utils.test.ts
new file mode 100644
index 0000000000..e9a0ed3ba4
--- /dev/null
+++ b/tests/validation/utils.test.ts
@@ -0,0 +1,70 @@
+import { utils, errors } from '@/validation';
+import * as nodesUtils from '@/nodes/utils';
+
+describe('Validation utils', () => {
+  describe('parseSeedNodes', () => {
+    const nodeIdEncoded1 = 'vrsc24a1er424epq77dtoveo93meij0pc8ig4uvs9jbeld78n9nl0';
+    const nodeId1 = nodesUtils.decodeNodeId(nodeIdEncoded1)!;
+    const nodeIdEncoded2 = 'vrcacp9vsb4ht25hds6s4lpp2abfaso0mptcfnh499n35vfcn2gkg';
+    const nodeId2 = nodesUtils.decodeNodeId(nodeIdEncoded2)!;
+    const nodeIdEncoded3 = 'vi3et1hrpv2m2lrplcm7cu913kr45v51cak54vm68anlbvuf83ra0';
+    const nodeId3 = nodesUtils.decodeNodeId(nodeIdEncoded3)!;
+    const hostname = 'testnet.polykey.io';
+    const hostIPv4 = '127.0.0.1';
+    const hostIPv6 = '[2001:db8:85a3:8d3:1319:8a2e:370:7348]';
+    const port1 = 1314;
+    const port2 = 1315;
+    const port3 = 1316;
+    test('valid seed nodes (using hostname, IPv4, IPv6)', () => {
+      const rawSeedNodes =
+        `${nodeIdEncoded1}@${hostname}:${port1};` +
+        `${nodeIdEncoded2}@${hostIPv4}:${port2};` +
+        `${nodeIdEncoded3}@${hostIPv6}:${port3};`;
+      const parsed = utils.parseSeedNodes(rawSeedNodes);
+      const seeds = parsed[0];
+      console.log(seeds);
+      expect(seeds[nodeId1]).toStrictEqual({
+        host: hostname,
+        port: port1,
+      });
+      expect(seeds[nodeId2]).toStrictEqual({
+        host: hostIPv4,
+        port: port2,
+      });
+      expect(seeds[nodeId3]).toStrictEqual({
+        host: hostIPv6.replace(/\[|\]/g, ''),
+        port: port3,
+      });
+      expect(parsed[1]).toBeFalsy();
+    });
+    test('invalid node ID', () => {
+      const rawSeedNodes = `INVALIDNODEID@${hostname}:${port1}`;
+      expect(() => utils.parseSeedNodes(rawSeedNodes)).toThrow(errors.ErrorParse);
+    });
+    test('invalid hostname', () => {
+      const rawSeedNodes = `${nodeIdEncoded1}@$invalidHost:${port1}`;
+      expect(() => utils.parseSeedNodes(rawSeedNodes)).toThrow(errors.ErrorParse);
+    });
+    test('invalid port', () => {
+      const rawSeedNodes = `${nodeIdEncoded1}@${hostname}$:NOTAPORT`;
+      // TODO: currently failing here
+      expect(() => utils.parseSeedNodes(rawSeedNodes)).toThrow(errors.ErrorParse);
+    });
+    test('invalid structure', () => {
+      const rawSeedNodes = ``
+    });
+    // TODO: remove - just testing this weird behaviour
+    test.only('invalid', () => {
+      expect(() => {
+        new URL('bad URL');
+      }).toThrowError(TypeError)
+      // try {
+      //   new URL('bad url');
+      // } catch (e) {
+      //   if (e instanceof TypeError) {
+      //     console.log('TypeError')
+      //   }
+      // }
+    });
+  });
+});