convert the rest of the helper files to ts

test/setup-api-web.ts

@@ -0,0 +1,50 @@
+import {RippleAPI, RippleAPIBroadcast} from 'ripple-api';
+import ledgerClosed from './fixtures/rippled/ledger-close.json';
+
+const port = 34371;
+const baseUrl = 'ws://testripple.circleci.com:';
+
+function setup(this: any, port_ = port) {
+  const tapi = new RippleAPI({server: baseUrl + port_});
+  return tapi.connect().then(() => {
+    return tapi.connection.request({
+      command: 'test_command',
+      data: {openOnOtherPort: true}
+    });
+  }).then(got => {
+    return new Promise((resolve, reject) => {
+      this.api = new RippleAPI({server: baseUrl + got.port});
+      this.api.connect().then(() => {
+        this.api.once('ledger', () => resolve());
+        this.api.connection._ws.emit('message', JSON.stringify(ledgerClosed));
+      }).catch(reject);
+    });
+  }).then(() => {
+    return tapi.disconnect();
+  });
+}
+
+function setupBroadcast(this: any) {
+  const servers = [port, port + 1].map(port_ => baseUrl + port_);
+  this.api = new RippleAPIBroadcast(servers);
+  return new Promise((resolve, reject) => {
+    this.api.connect().then(() => {
+      this.api.once('ledger', () => resolve());
+      this.api._apis[0].connection._ws.emit('message',
+        JSON.stringify(ledgerClosed));
+    }).catch(reject);
+  });
+}
+
+function teardown(this: any) {
+  if (this.api.isConnected()) {
+    return this.api.disconnect();
+  }
+  return undefined;
+}
+
+export default {
+  setup: setup,
+  teardown: teardown,
+  setupBroadcast: setupBroadcast
+};