Fixed issue with snapshot

Author: zubairov

lib/actions/select.js

@@ -30,11 +30,11 @@ function init(cfg) {
  * @param msg incoming message object that contains ``body`` with payload
  * @param cfg configuration that is account information and configuration field values
  */
-function processAction(msg, cfg, snapshot) {
+function processAction(msg, cfg, snapshot = {}) {
     const originalSql = cfg.query;
     const now = new Date().toISOString();
     // Last poll should come from Snapshot, if not it's beginning of time
-    const lastPoll = snapshot ? snapshot.lastPoll : null || new Date(0).toISOString();
+    const lastPoll = snapshot.lastPoll || new Date(0).toISOString();
     console.log('Last polling timestamp=%s', lastPoll);
     const sql = originalSql.split(LAST_POLL_PLACEHOLDER).join(lastPoll);
     console.log('Original query=%s', originalSql);

spec-integration/integration.spec.js

@@ -114,7 +114,7 @@ describe('Integration test', () => {
             const msg = {
                 body: {}
             };
-            select.process.call(emitter, msg, cfg).catch(err => done(err));
+            select.process.call(emitter, msg, cfg, {}).catch(err => done(err));
         });
     });