Fixed case where there were no states defined

.travis.yml

@@ -31,7 +31,7 @@ node_js:
 matrix:
   include:
     - node_js: 7
-      script: yarn run test:visual:run
+      script: yarn run test:visual:run --no-clean
 
 # Install a C++11 compatible compiler
 addons:

tests/visual/helpers/spec.js

@@ -136,7 +136,8 @@ const generate = (dirname, components) => {
         suite.setCaptureElements(component.capture)
 
       /* Generate a subsuite for every state */
-      for (const state of component.states) {
+      const states = component.states || [{ name: "", wait: 0 }]
+      for (const state of states) {
         const test = subsuite => {
 
             /* Resolve and apply relevant breakpoints */