add test for loading PayId

test/unit/loadPayId.test.ts

@@ -0,0 +1,27 @@
+import 'mocha'
+import { assert } from 'chai'
+
+import { loadPayId } from '../../src/commands/Command'
+
+describe('loadPayId()', function (): void {
+  it('Returns a PaymentInformation given a valid PayID', async function (): Promise<
+    void
+  > {
+    const info = await loadPayId('nhartner$xpring.money')
+    assert.equal(info.payId, 'nhartner$xpring.money')
+    assert.isTrue(info.addresses.length > 0)
+  })
+
+  it('Gives error when PayID returns 404', async function (): Promise<void> {
+    try {
+      await loadPayId('bogusaccount$xpring.money')
+      assert.fail('expected error')
+    } catch (error) {
+      assert.deepEqual(
+        // eslint-disable-next-line @typescript-eslint/no-unsafe-member-access -- Error is untyped
+        error.message,
+        'Received HTTP status 404 on https://xpring.money/bogusaccount',
+      )
+    }
+  })
+})