fix nin support for in memory datasource

lib/connectors/memory.js

@@ -558,6 +558,15 @@ function applyFilter(filter) {
         return false;
       }
 
+      if (example.nin) {

+        for (var i = 0; i < example.nin.length; i++) {

+          if (example.nin[i] == value) {

+            return false;

+          }

+        }

+        return true;
+      
}
+
       if ('neq' in example) {
         return compare(example.neq, value) !== 0;
       }

test/memory.test.js

@@ -350,6 +350,34 @@ describe('Memory connector', function() {
       });
     });
 
+    it('should successfully extract 3 users with inq', function (done) {
+      User.find({
+        where: {
+          seq: {
+            inq: [0, 1, 5]
+          }
+        }
+      }, function (err, users) {
+        should.not.exist(err);
+        users.length.should.be.equal(3);
+        done();
+      });
+    });
+
+    it('should successfully extract 4 users with nin', function (done) {
+      User.find({
+        where: {
+          seq: {
+            nin: [2, 3]
+          }
+        }
+      }, function (err, users) {
+        should.not.exist(err);
+        users.length.should.be.equal(4);
+        done();
+      });
+    });
+
     it('should count using date string', function(done) {
       User.count({birthday: {lt: new Date(1990,0).toISOString()}},
         function(err, count) {