Adding validation for array in ReactPropTypes.

src/isomorphic/classic/types/ReactPropTypes.js

@@ -200,6 +200,12 @@ function createInstanceTypeChecker(expectedClass) {
 }
 
 function createEnumTypeChecker(expectedValues) {
+  if (!Array.isArray(expectedValues)) {
+    return new Error(
+      `Invalid argument supplied to oneOf, expected an instance of array.`
+    );
+  }
+
   function validate(props, propName, componentName, location, propFullName) {
     var propValue = props[propName];
     for (var i = 0; i < expectedValues.length; i++) {
@@ -249,6 +255,12 @@ function createObjectOfTypeChecker(typeChecker) {
 }
 
 function createUnionTypeChecker(arrayOfTypeCheckers) {
+  if (!Array.isArray(arrayOfTypeCheckers)) {
+    return new Error(
+      `Invalid argument supplied to oneOfType, expected an instance of array.`
+    );
+  }
+
   function validate(props, propName, componentName, location, propFullName) {
     for (var i = 0; i < arrayOfTypeCheckers.length; i++) {
       var checker = arrayOfTypeCheckers[i];

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

@@ -520,6 +520,13 @@ describe('ReactPropTypes', function() {
   });
 
   describe('OneOf Types', function() {
+    it("should fail for invalid argument", function() {
+      var error = PropTypes.oneOf('red', 'blue');
+      expect(error instanceof Error).toBe(true);
+      expect(error.message).toBe('Invalid argument supplied to ' +
+        'oneOf, expected an instance of array.');
+    });
+
     it("should warn for invalid strings", function() {
       typeCheckFail(
         PropTypes.oneOf(['red', 'blue']),
@@ -572,6 +579,13 @@ describe('ReactPropTypes', function() {
   });
 
   describe('Union Types', function() {
+    it("should fail for invalid argument", function() {
+      var error = PropTypes.oneOfType('red', 'blue');
+      expect(error instanceof Error).toBe(true);
+      expect(error.message).toBe('Invalid argument supplied to ' +
+        'oneOfType, expected an instance of array.');
+    });
+
     it('should warn if none of the types are valid', function() {
       typeCheckFail(
         PropTypes.oneOfType([PropTypes.string, PropTypes.number]),