validate: add 'container' error code

Author: etpinard

src/plot_api/validate.js

@@ -24,6 +24,9 @@ var code2msgFunc = {
     schema: function(path) {
         return 'key ' + path.join('.') + ' is not part of the schema';
     },
+    container: function(path) {
+        return 'key ' + path.join('.') + ' is supposed to be linked to a container';
+    },
     unused: function(path, valIn) {
         var prefix = isPlainObject(valIn) ? 'container' : 'key';
 
@@ -115,6 +118,9 @@ function crawl(objIn, objOut, schema, list, path) {
         else if(isPlainObject(valIn) && isPlainObject(valOut)) {
             crawl(valIn, valOut, nestedSchema, list, p);
         }
+        else if(!isPlainObject(valIn) && isPlainObject(valOut)) {
+            list.push(format('container', p, valIn));
+        }
         else if(nestedSchema.items && Array.isArray(valIn)) {
             var itemName = k.substr(0, k.length - 1);
 

test/jasmine/tests/validate_test.js

@@ -125,11 +125,13 @@ describe('Plotly.validate', function() {
                 bgcolor: 'red'
             },
             geo0: {},
+            yaxis5: 'sup'
         });
 
         assertErrorShape(out, [], 4);
         assertErrorContent(out.layout[0], 'value', ['xaxis2', 'range'], '');
         assertErrorContent(out.layout[1], 'unused', ['scene10'], '');
         assertErrorContent(out.layout[2], 'schema', ['geo0'], '');
+        assertErrorContent(out.layout[3], 'container', ['yaxis5'], '');
     });
 });