From 78274440cbf53c771d0207416a247d27bb025174 Mon Sep 17 00:00:00 2001
From: Fabio Berger <me@fabioberger.com>
Date: Tue, 5 Dec 2017 18:50:02 -0600
Subject: Add initial tests fort redundantRpcSubprovider

---
 .../test/unit/redundant_rpc_subprovider_test.ts    | 62 ++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 packages/subproviders/test/unit/redundant_rpc_subprovider_test.ts

diff --git a/packages/subproviders/test/unit/redundant_rpc_subprovider_test.ts b/packages/subproviders/test/unit/redundant_rpc_subprovider_test.ts
new file mode 100644
index 000000000..edeb1d5a2
--- /dev/null
+++ b/packages/subproviders/test/unit/redundant_rpc_subprovider_test.ts
@@ -0,0 +1,62 @@
+import * as chai from 'chai';
+import * as _ from 'lodash';
+import Web3 = require('web3');
+import Web3ProviderEngine = require('web3-provider-engine');
+
+import {RedundantRPCSubprovider} from '../../src';
+import {
+    DoneCallback,
+} from '../../src/types';
+import {chaiSetup} from '../chai_setup';
+import {reportCallbackErrors} from '../utils/report_callback_errors';
+
+const expect = chai.expect;
+
+describe('RedundantRpcSubprovider', () => {
+    let provider: Web3ProviderEngine;
+    it('succeeds when supplied a healthy endpoint', (done: DoneCallback) => {
+        provider = new Web3ProviderEngine();
+        const endpoints = [
+            'http://localhost:8545',
+        ];
+        const redundantSubprovider = new RedundantRPCSubprovider(endpoints);
+        provider.addProvider(redundantSubprovider);
+        provider.start();
+
+        const payload = {
+            jsonrpc: '2.0',
+            method: 'eth_accounts',
+            params: [],
+            id: 1,
+        };
+        const callback = reportCallbackErrors(done)((err: Error, response: Web3.JSONRPCResponsePayload) => {
+            expect(err).to.be.a('null');
+            expect(response.result.length).to.be.equal(10);
+            done();
+        });
+        provider.sendAsync(payload, callback);
+    });
+    it('succeeds when supplied at least one healthy endpoint', (done: DoneCallback) => {
+        provider = new Web3ProviderEngine();
+        const endpoints = [
+            'http://does-not-exist:3000',
+            'http://localhost:8545',
+        ];
+        const redundantSubprovider = new RedundantRPCSubprovider(endpoints);
+        provider.addProvider(redundantSubprovider);
+        provider.start();
+
+        const payload = {
+            jsonrpc: '2.0',
+            method: 'eth_accounts',
+            params: [],
+            id: 1,
+        };
+        const callback = reportCallbackErrors(done)((err: Error, response: Web3.JSONRPCResponsePayload) => {
+            expect(err).to.be.a('null');
+            expect(response.result.length).to.be.equal(10);
+            done();
+        });
+        provider.sendAsync(payload, callback);
+    });
+});
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