Added a test case for unsetting slugs (and fixed related bug)

server/plugins/plugins.coffee

@@ -46,6 +46,7 @@ module.exports.NamedPlugin = (schema) ->
       @checkSlugConflicts(next)
     else if newSlug is '' and @get 'slug'
       @set 'slug', undefined
+      next()
     else
       next()
   )

test/server/functional/user.spec.coffee

@@ -209,6 +209,7 @@ ghlfarghlarghlfarghlarghlfarghlarghlfarghlarghlfarghlarghlfarghlarghlfarghlarghl
         expect(err).toBeNull()
         expect(response.statusCode).toBe 409
 
+        # Restore Sam
         sam.set 'name', samsName
         done()
 
@@ -234,6 +235,21 @@ ghlfarghlarghlfarghlarghlfarghlarghlfarghlarghlfarghlarghlfarghlarghlfarghlarghl
         form = req.form()
         form.append('name', 'admin')
 
+  it 'should be able to unset a slug by setting an empty name', (done) ->
+    loginSam (sam) ->
+      samsName = sam.get 'name'
+      sam.set 'name', ''
+      request.put {uri:getURL(urlUser + '/' + sam.id), json: sam.toObject()}, (err, response) ->
+        expect(err).toBeNull()
+        expect(response.statusCode).toBe 200
+        newSam = response.body
+
+        # Restore Sam
+        sam.set 'name', samsName
+        request.put {uri:getURL(urlUser + '/' + sam.id), json: sam.toObject()}, (err, response) ->
+          expect(err).toBeNull()
+          done()
+
 describe 'GET /db/user', ->
 
   it 'logs in as admin', (done) ->
@@ -309,8 +325,6 @@ describe 'GET /db/user', ->
   # TODO Ruben should be able to fetch other users but probably with restricted data access
   # Add to the test case above an extra data check
 
-  xit 'can unset name and undefine slug'
-
   xit 'can fetch another user with restricted fields'