Add test for defaults field scenario

Author: douglasrafael

test/unit/fields.spec.js

@@ -5,39 +5,39 @@ describe('QueryString: Fields', function () {
 
     context('when query fields are a simple string', function () {
         it('should return a JSON with field params', function (done) {
-            const query = { fields: 'name,age,created_at' }
+            const query = {fields: 'name,age,created_at'}
             verify(fields.fields(query, default_options))
             done()
         })
     })
 
     context('when query fields are an array of strings', function () {
         it('should return a JSON with field params', function (done) {
-            const query = { fields: ['name,age', 'created_at'] }
+            const query = {fields: ['name,age', 'created_at']}
             verify(fields.fields(query, default_options))
             done()
         })
     })
 
     context('when there are blank spaces between query fields', function () {
         it('should return a JSON with field params, ignoring the blank space', function (done) {
-            const query = { fields: '  name   , name,  age ,   created_at' }
+            const query = {fields: '  name   , name,  age ,   created_at'}
             verify(fields.fields(query, default_options))
             done()
         })
     })
 
     context('when there are null fields in query fields', function () {
         it('should return a JSON with field params, ignoring the null fields', function (done) {
-            const query = { fields: ',,name,,,age,,,,,created_at,,' }
+            const query = {fields: ',,name,,,age,,,,,created_at,,'}
             verify(fields.fields(query, default_options))
             done()
         })
     })
 
     context('when there are special characters in query fields', function () {
         it('should return a JSON with field params, ignoring the special characteres', function (done) {
-            const query = { fields: ' ,,,   ^ & * ( ´) @!n@a"m "e,$%ag" e",created  _a t  ' }
+            const query = {fields: ' ,,,   ^ & * ( ´) @!n@a"m "e,$%ag" e",created  _a t  '}
             verify(fields.fields(query, default_options))
             done()
 
@@ -52,17 +52,21 @@ describe('QueryString: Fields', function () {
         })
     })
 
-    context('when use custom params without query', function () {
+    context('when use custom params', function () {
         it('should return a JSON with custom params', function () {
-            const custom_options = { default: { fields: { name: 1, age: 1, _id: 0 } } }
+            const custom_options = {default: {fields: {name: 1, age: 1, _id: 0}}}
             const result = fields.fields({}, custom_options)
-            expect(result).to.have.property('name')
-            expect(result).to.have.property('age')
-            expect(result).to.have.property('_id')
             expect(result.name).to.eql(custom_options.default.fields.name)
             expect(result.age).to.eql(custom_options.default.fields.age)
             expect(result._id).to.eql(custom_options.default.fields._id)
+        })
 
+        it('should return a JSON with custom params and those of the query', function () {
+            const custom_options = {default: {fields: {name: 1, _id: 1}}}
+            const result = fields.fields({fields: 'age'}, custom_options)
+            expect(result.name).to.eql(custom_options.default.fields.name)
+            expect(result._id).to.eql(custom_options.default.fields._id)
+            expect(result.age).to.eql(1)
         })
     })
 })