Bypass preprocessing states with no strings

bdowning · Apr 20, 2016 · 3c264a0 · 3c264a0
1 parent 6f51b2e
commit 3c264a0
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Showing 2 changed files with 10 additions and 3 deletions.
diff --git a/src/preprocessors/tokenPreprocessor.js b/src/preprocessors/tokenPreprocessor.js
@@ -1,10 +1,17 @@
+import { identity } from '../index';
+
 export function createTokenPreprocessor(options = { }) {
   options = Object.assign({
     defaultPrecision: 2
   }, options);
 
   return (state, easing) => {
     const props = Object.keys(state).filter(k => typeof state[k] === 'string');
+
+    if (props.length === 0) {
+      return [ state, easing, identity ];
+    }
+
     const newState = Object.assign({ }, state);
     const newEasing = Object.assign({ }, easing);
     const propsInfo = [ ];

diff --git a/test/preprocessors/tokenPreprocessor.spec.js b/test/preprocessors/tokenPreprocessor.spec.js
@@ -9,9 +9,9 @@ describe('tokenPreprocessor', () => {
     const [ outState, outEasing, decode ] =
             tokenPreprocessor({ x: 1, y: 4 }, { x: identity, y: identity });
 
-    expect(outState).toEqual({ x: 1, y: 4 });
-    expect(outEasing).toEqual({ x: identity, y: identity });
-    expect(decode({ x: 3, y: 2 })).toEqual({ x: 3, y: 2 });
+    expect(outState).toBe(outState);
+    expect(outEasing).toBe(outEasing);
+    expect(decode).toBe(identity);
   });
 
   it('preprocesses and decodes simple stringified numbers', () => {