Allow passing of content in request with file type body

lib/collection/form-param.js

@@ -24,6 +24,7 @@ _.inherit((
         this.value = options.value || '';
         this.type = options.type;
         this.src = options.src;
+        this.content = options.content;
         this.contentType = options.contentType;
     }), Property);
 

lib/collection/request-body.js

@@ -214,9 +214,6 @@ _.assign(RequestBody.prototype, /** @lends RequestBody.prototype */ {
     toJSON () {
         var obj = PropertyBase.toJSON(this);
 
-        // make sure that file content is removed because it is non-serializable ReadStream
-        _.unset(obj, 'file.content');
-
         return obj;
     }
 });

test/unit/form-param.test.js

@@ -68,7 +68,7 @@ describe('FormParam', function () {
             expect(fp.toJSON()).to.eql(definition);
         });
 
-        it('should correctly handle param with type `file`', function () {
+        it('should correctly handle param with type `file` and src', function () {
             var definition = {
                     key: 'foo',
                     src: 'fileSrc',
@@ -80,6 +80,18 @@ describe('FormParam', function () {
             expect(fp.toJSON()).to.eql(definition);
         });
 
+        it('should correctly handle param with type `file` and content', function () {
+            var definition = {
+                    key: 'foo',
+                    content: 'Base64 representation of buffer',
+                    type: 'file',
+                    contentType: 'application/json'
+                },
+                fp = new FormParam(definition);
+
+            expect(fp.toJSON()).to.eql(definition);
+        });
+
         it('should not have value for param with type `file`', function () {
             var fp = new FormParam({
                 key: 'foo',

test/unit/request-body.test.js

@@ -525,14 +525,14 @@ describe('RequestBody', function () {
             expect(rBody.toJSON()).to.eql(definition);
         });
 
-        it('should not have content in file body', function () {
+        it('should have content in file body', function () {
             var definition = {
                     mode: 'file',
-                    file: { src: 'fileSrc', content: 'this should be removed' }
+                    file: { src: 'fileSrc', content: 'this should not be removed' }
                 },
                 rBody = new RequestBody(definition);
 
-            expect(rBody.toJSON().file).to.not.have.property('content');
+            expect(rBody.toJSON().file).to.have.property('content');
         });
     });
 });