test: adds integration tests for rippled utility methods (#1597)

* add utility tests

* type client better

* simplify ledgerAccept

test/integration/requests/utility.ts

@@ -0,0 +1,48 @@
+import { assert } from 'chai'
+import _ from 'lodash'
+import { Client } from 'xrpl-local'
+
+import serverUrl from '../serverUrl'
+import { setupClient, suiteClientSetup, teardownClient } from '../setup'
+
+// how long before each test case times out
+const TIMEOUT = 20000
+
+describe('Utility method integration tests', function () {
+  this.timeout(TIMEOUT)
+
+  before(suiteClientSetup)
+  beforeEach(_.partial(setupClient, serverUrl))
+  afterEach(teardownClient)
+
+  it('ping', async function () {
+    const response = await (this.client as Client).request({
+      command: 'ping',
+    })
+    const expected = {
+      id: 0,
+      result: { role: 'admin', unlimited: true },
+      status: 'success',
+      type: 'response',
+    }
+    assert.deepEqual(response, expected)
+  })
+
+  it('random', async function () {
+    const response = await (this.client as Client).request({
+      command: 'random',
+    })
+    const expected = {
+      id: 0,
+      result: {
+        random: '[random string of 64 bytes]',
+      },
+      status: 'success',
+      type: 'response',
+    }
+    assert.equal(response.id, expected.id)
+    assert.equal(response.status, expected.status)
+    assert.equal(response.type, expected.type)
+    assert.equal(response.result.random.length, 64)
+  })
+})