Revert "Revert "Merge pull request #1052 from FredKSchott/tests-to-ts-03""

This reverts commit b648387a57.

test/integration/connection-test.ts

@@ -0,0 +1,53 @@
+import Connection from '../../src/common/connection';
+
+const request1 = {
+  command: 'server_info'
+};
+
+const request2 = {
+  command: 'account_info',
+  account: 'r9cZA1mLK5R5Am25ArfXFmqgNwjZgnfk59'
+};
+
+const request3 = {
+  command: 'account_info'
+};
+
+const request4 = {
+  command: 'account_info',
+  account: 'invalid'
+};
+
+function makeRequest(connection, request) {
+  return connection.request(request).then((response) => {
+    console.log(request);
+    console.log(JSON.stringify(response, null, 2));
+  }).catch((error) => {
+    console.log(request);
+    console.log(error);
+  });
+}
+
+function main() {
+  const connection = new Connection('wss://s1.ripple.com');
+  connection.connect().then(() => {
+    console.log('Connected');
+    Promise.all([
+      makeRequest(connection, request1),
+      makeRequest(connection, request2),
+      makeRequest(connection, request3),
+      makeRequest(connection, request4)
+    ]).then(() => {
+      console.log('Done');
+    });
+    connection.getLedgerVersion().then(console.log);
+    connection.on('ledgerClosed', ledger => {
+      console.log(ledger);
+      connection.getLedgerVersion().then(console.log);
+    });
+    connection.hasLedgerVersions(1, 100).then(console.log);
+    connection.hasLedgerVersions(16631039, 16631040).then(console.log);
+  });
+}
+
+main();