make router required on context

ryanflorence · ryanflorence · commit 98fe7145a57f · 2016-10-25T19:40:14.000-07:00
we used to allow this to make unit tests easier, but now all you have to do is wrap your component in a `<MemoryHistory>` and be on your way closes #3889
diff --git a/modules/Link.js b/modules/Link.js
@@ -25,7 +25,7 @@ class Link extends React.Component {
   }
 
   static contextTypes = {
-    router: routerContextType
+    router: routerContextType.isRequired
   }
 
   handleClick = (event) => {

Original file line number	Diff line number	Diff line change
`@@ -25,7 +25,7 @@ class Link extends React.Component {`
`25`	`25`	`}`
`26`	`26`
`27`	`27`	`static contextTypes = {`
`28`		`- router: routerContextType`
	`28`	`+ router: routerContextType.isRequired`
`29`	`29`	`}`
`30`	`30`
`31`	`31`	`handleClick = (event) => {`