Test coverage corner case

Author: moaxaca

package.json

@@ -30,6 +30,7 @@
   },
   "devDependencies": {
     "chai": "^3.5.0",
+    "chai-as-promised": "^7.1.1",
     "coveralls": "^3.0.0",
     "eslint": "^4.17.0",
     "eslint-config-airbnb": "^16.1.0",

test/.mocha-opts

@@ -0,0 +1,3 @@
+--require test/setup.js
+--recursive
+--ui bdd

test/integration/commands/common.spec.js

@@ -47,4 +47,11 @@ describe('Commands - Common', function () {
       assert.equal(status, true);
     });
   });
+
+  describe('test rejection', function () {
+    it('should reject promise on throw', async () => {
+      let promise = redisClient.set('hello');
+      assert.isRejected(promise, Error);
+    });
+  });
 });

test/setup.js

@@ -0,0 +1,4 @@
+const chai = require('chai');
+const chaiAsPromise = require('chai-as-promised');
+
+chai.use(chaiAsPromise);

yarn.lock

@@ -348,6 +348,12 @@ center-align@^0.1.1:
     align-text "^0.1.3"
     lazy-cache "^1.0.3"
 
+chai-as-promised@^7.1.1:
+  version "7.1.1"
+  resolved "https://registry.yarnpkg.com/chai-as-promised/-/chai-as-promised-7.1.1.tgz#08645d825deb8696ee61725dbf590c012eb00ca0"
+  dependencies:
+    check-error "^1.0.2"
+
 chai@^3.5.0:
   version "3.5.0"
   resolved "https://registry.yarnpkg.com/chai/-/chai-3.5.0.tgz#4d02637b067fe958bdbfdd3a40ec56fef7373247"
@@ -378,6 +384,10 @@ chardet@^0.4.0:
   version "0.4.2"
   resolved "https://registry.yarnpkg.com/chardet/-/chardet-0.4.2.tgz#b5473b33dc97c424e5d98dc87d55d4d8a29c8bf2"
 
+check-error@^1.0.2:
+  version "1.0.2"
+  resolved "https://registry.yarnpkg.com/check-error/-/check-error-1.0.2.tgz#574d312edd88bb5dd8912e9286dd6c0aed4aac82"
+
 circular-json@^0.3.1:
   version "0.3.3"
   resolved "https://registry.yarnpkg.com/circular-json/-/circular-json-0.3.3.tgz#815c99ea84f6809529d2f45791bdf82711352d66"