Do not throw an exception when checked or expanded arrays contain invalid values

Resolves #69.

Author: jakezatecky

CHANGELOG.md

@@ -1,5 +1,11 @@
 # CHANGELOG
 
+## v1.2.0 (TBA)
+
+### Other
+
+* [#69]: Tree will no longer throw an exception if `checked` or `expanded` contains values that do not recursively exist in the `nodes` property
+
 ## [v1.1.0](https://github.com/jakezatecky/react-checkbox-tree/compare/v1.0.2...v1.1.0) (2018-03-31)
 
 ### New Features

src/js/CheckboxTree.js

@@ -164,7 +164,9 @@ class CheckboxTree extends React.Component {
         // Unserialize values and set their nodes to true
         Object.keys(lists).forEach((listKey) => {
             lists[listKey].forEach((value) => {
-                this.nodes[value][listKey] = true;
+                if (this.nodes[value] !== undefined) {
+                    this.nodes[value][listKey] = true;
+                }
             });
         });
     }

test/CheckboxTree.js

@@ -22,6 +22,19 @@ describe('<CheckboxTree />', () => {
         });
     });
 
+    describe('checked', () => {
+        it('should not throw an exception if it contains values that are not in the `nodes` property', () => {
+            const wrapper = shallow(
+                <CheckboxTree
+                    checked={['neptune']}
+                    nodes={[{ value: 'jupiter', label: 'Jupiter' }]}
+                />,
+            );
+
+            assert.isTrue(wrapper.find('.react-checkbox-tree').exists());
+        });
+    });
+
     describe('disabled', () => {
         it('should add the class rct-disabled to the root', () => {
             const wrapper = shallow(
@@ -32,6 +45,19 @@ describe('<CheckboxTree />', () => {
         });
     });
 
+    describe('expanded', () => {
+        it('should not throw an exception if it contains values that are not in the `nodes` property', () => {
+            const wrapper = shallow(
+                <CheckboxTree
+                    expanded={['mars']}
+                    nodes={[{ value: 'jupiter', label: 'Jupiter' }]}
+                />,
+            );
+
+            assert.isTrue(wrapper.find('.react-checkbox-tree').exists());
+        });
+    });
+
     describe('nativeCheckboxes', () => {
         it('should add the class rct-native-display to the root', () => {
             const wrapper = shallow(