Rename RippleAPI client to Client (#1520)

* rename RippleAPI -> XrplClient

* more renames

* move API stuff to client folder

* rename all api -> client

* fix tests

* make tests run

* fix integ tests

* fix urls

* fix merge issues

* XrplClient -> Client

* fix merge issues

* rename xrpl-client npm symlink to xrpl-local

test/setup-client.ts

@@ -0,0 +1,70 @@
+import {Client, ClientBroadcast} from 'xrpl-local'
+import ledgerClosed from './fixtures/rippled/ledger-close.json'
+import {createMockRippled} from './mock-rippled'
+import {getFreePort} from './utils'
+
+function setupMockRippledConnection(testcase, port) {
+  return new Promise<void>((resolve, reject) => {
+    testcase.mockRippled = createMockRippled(port)
+    testcase._mockedServerPort = port
+    testcase.client = new Client({server: 'ws://localhost:' + port})
+    testcase.client
+      .connect()
+      .then(() => {
+        testcase.client.once('ledger', () => resolve())
+        testcase.client.connection._ws.emit(
+          'message',
+          JSON.stringify(ledgerClosed)
+        )
+      })
+      .catch(reject)
+  })
+}
+
+function setupMockRippledConnectionForBroadcast(testcase, ports) {
+  return new Promise<void>((resolve, reject) => {
+    const servers = ports.map((port) => 'ws://localhost:' + port)
+    testcase.mocks = ports.map((port) => createMockRippled(port))
+    testcase.client = new ClientBroadcast(servers)
+    testcase.client
+      .connect()
+      .then(() => {
+        testcase.client.once('ledger', () => resolve())
+        testcase.mocks[0].socket.send(JSON.stringify(ledgerClosed))
+      })
+      .catch(reject)
+  })
+}
+
+function setup(this: any) {
+  return getFreePort().then((port) => {
+    return setupMockRippledConnection(this, port)
+  })
+}
+
+function setupBroadcast(this: any) {
+  return Promise.all([getFreePort(), getFreePort()]).then((ports) => {
+    return setupMockRippledConnectionForBroadcast(this, ports)
+  })
+}
+
+function teardown(this: any, done) {
+  this.client
+    .disconnect()
+    .then(() => {
+      if (this.mockRippled != null) {
+        this.mockRippled.close()
+      } else {
+        this.mocks.forEach((mock) => mock.close())
+      }
+      setImmediate(done)
+    })
+    .catch(done)
+}
+
+export default {
+  setup: setup,
+  teardown: teardown,
+  setupBroadcast: setupBroadcast,
+  createMockRippled: createMockRippled
+}