feat: add account change notifications

web3.js/test/__mocks__/rpc-websockets.js

@@ -0,0 +1,48 @@
+import {Client as RpcWebSocketClient} from 'rpc-websockets';
+
+// Define DOITLIVE in the environment to test against the real full node
+// identified by `url` instead of using the mock
+export const mockRpcEnabled = !process.env.DOITLIVE;
+
+let mockNotice = true;
+
+export class Client {
+  client: RpcWebSocketClient;
+
+  constructor(url, options) {
+    //console.log('MockClient', url, options);
+    if (!mockRpcEnabled) {
+      if (mockNotice) {
+        console.log('Note: rpc-websockets mock is disabled, testing live against', url);
+        mockNotice = false;
+      }
+      this.client = new RpcWebSocketClient(url, options);
+    }
+  }
+
+  connect() {
+    if (!mockRpcEnabled) {
+      return this.client.connect();
+    }
+  }
+
+  close() {
+    if (!mockRpcEnabled) {
+      return this.client.close();
+    }
+  }
+
+  on(event: string, callback: Function) {
+    if (!mockRpcEnabled) {
+      return this.client.on(event, callback);
+    }
+    //console.log('on', event);
+  }
+
+  async call(method: string, params: Object): Promise<Object> {
+    if (!mockRpcEnabled) {
+      return await this.client.call(method, params);
+    }
+    throw new Error('call unsupported');
+  }
+}