Fix for #5468: Validate PropTypes.oneOf(Type) arguments early (#6316)

* Fix for 5468: Validate proptype definitions sooner

Added typeCheckWarn() func and updated the oneOf/oneOfType tests
Added __DEV__ warning for invalid oneOf/OneOfType args

* Suppress redundant error on warn; typeCheckWarn() removed

* Return no-op

* Using emptyFunction module for consistency

* Remove createChainableTypeChecker() call

* Adjust test to assert type check passes when warned

src/isomorphic/classic/types/ReactPropTypes.js

@@ -16,6 +16,7 @@ var ReactPropTypeLocationNames = require('ReactPropTypeLocationNames');
 
 var emptyFunction = require('emptyFunction');
 var getIteratorFn = require('getIteratorFn');
+var warning = require('warning');
 
 /**
  * Collection of methods that allow declaration and validation of props that are
@@ -226,11 +227,8 @@ function createInstanceTypeChecker(expectedClass) {
 
 function createEnumTypeChecker(expectedValues) {
   if (!Array.isArray(expectedValues)) {
-    return createChainableTypeChecker(function() {
-      return new Error(
-        `Invalid argument supplied to oneOf, expected an instance of array.`
-      );
-    });
+    warning(false, 'Invalid argument supplied to oneOf, expected an instance of array.');
+    return emptyFunction.thatReturnsNull;
   }
 
   function validate(props, propName, componentName, location, propFullName) {
@@ -288,11 +286,8 @@ function createObjectOfTypeChecker(typeChecker) {
 
 function createUnionTypeChecker(arrayOfTypeCheckers) {
   if (!Array.isArray(arrayOfTypeCheckers)) {
-    return createChainableTypeChecker(function() {
-      return new Error(
-        `Invalid argument supplied to oneOfType, expected an instance of array.`
-      );
-    });
+    warning(false, 'Invalid argument supplied to oneOfType, expected an instance of array.');
+    return emptyFunction.thatReturnsNull;
   }
 
   function validate(props, propName, componentName, location, propFullName) {

src/isomorphic/classic/types/__tests__/ReactPropTypes-test.js

@@ -590,12 +590,16 @@ describe('ReactPropTypes', function() {
   });
 
   describe('OneOf Types', function() {
-    it('should fail for invalid argument', function() {
-      typeCheckFail(
-        PropTypes.oneOf('red', 'blue'),
-        'red',
-        'Invalid argument supplied to oneOf, expected an instance of array.'
-      );
+    it('should warn but not error for invalid argument', function() {
+      spyOn(console, 'error');
+
+      PropTypes.oneOf('red', 'blue');
+
+      expect(console.error).toHaveBeenCalled();
+      expect(console.error.calls.argsFor(0)[0])
+        .toContain('Invalid argument supplied to oneOf, expected an instance of array.');
+
+      typeCheckPass(PropTypes.oneOf('red', 'blue'), 'red');
     });
 
     it('should warn for invalid values', function() {
@@ -651,12 +655,16 @@ describe('ReactPropTypes', function() {
   });
 
   describe('Union Types', function() {
-    it('should fail for invalid argument', function() {
-      typeCheckFail(
-        PropTypes.oneOfType(PropTypes.string, PropTypes.number),
-        'red',
-        'Invalid argument supplied to oneOfType, expected an instance of array.'
-      );
+    it('should warn but not error for invalid argument', function() {
+      spyOn(console, 'error');
+
+      PropTypes.oneOfType(PropTypes.string, PropTypes.number);
+
+      expect(console.error).toHaveBeenCalled();
+      expect(console.error.calls.argsFor(0)[0])
+        .toContain('Invalid argument supplied to oneOfType, expected an instance of array.');
+
+      typeCheckPass(PropTypes.oneOf(PropTypes.string, PropTypes.number), []);
     });
 
     it('should warn if none of the types are valid', function() {