chore(utils): Add Test for getNetConfig() (libp2p#3399)

* Add tests for getNetConfig()

---------

Co-authored-by: dozyio <37986489+dozyio@users.noreply.github.com>
Co-authored-by: dozyio <github@dozy.io>

Author: ruediste

packages/utils/test/multiaddr/get-net-config.spec.ts

@@ -0,0 +1,35 @@
+import { multiaddr } from '@multiformats/multiaddr'
+import { expect } from 'aegir/chai'
+import { getNetConfig } from '../../src/index.ts'
+
+describe('multiaddr getNetConfig', () => {
+  it('throws on empty multiaddr', () => {
+    expect(() => getNetConfig(multiaddr())).to.throw()
+  })
+
+  it('identifies ip4 multiaddrs', () => {
+    expect(getNetConfig(multiaddr('/ip4/169.254.35.4'))).to.deep.equal({
+      type: 'ip4',
+      host: '169.254.35.4'
+    })
+    expect(getNetConfig(multiaddr('/ip4/169.254.35.4/tcp/1000'))).to.deep.equal({
+      type: 'ip4',
+      host: '169.254.35.4',
+      protocol: 'tcp',
+      port: 1000
+    })
+  })
+
+  it('identifies ip6 multiaddrs', () => {
+    expect(getNetConfig(multiaddr('/ip6/2001:8a0:7ac5:4201:3ac9:86ff:fe31:7095'))).to.deep.equal({
+      type: 'ip6',
+      host: '2001:8a0:7ac5:4201:3ac9:86ff:fe31:7095'
+    })
+    expect(getNetConfig(multiaddr('/ip6/2001:8a0:7ac5:4201:3ac9:86ff:fe31:7095/tcp/1000'))).to.deep.equal({
+      type: 'ip6',
+      host: '2001:8a0:7ac5:4201:3ac9:86ff:fe31:7095',
+      protocol: 'tcp',
+      port: 1000
+    })
+  })
+})