Add test for not existing parentId

Author: philipstanislaus

build/arrayToTree.spec.js

@@ -10,13 +10,17 @@ describe('arrayToTree', () => {
       { id: '1', parentId: '418', custom: 'ZZZz' },
       { id: '418', parentId: null, custom: 'ü' },
     ])).to.deep.equal([
-      { data: { id: '4', parentId: null, custom: 'abc' }, children: [
-        { data: { id: '31', parentId: '4', custom: '12' }, children: [] },
-      ] },
-      { data: { id: '418', parentId: null, custom: 'ü' }, children: [
-        { data: { id: '1941', parentId: '418', custom: 'de' }, children: [] },
-        { data: { id: '1', parentId: '418', custom: 'ZZZz' }, children: [] },
-      ] },
+      {
+        data: { id: '4', parentId: null, custom: 'abc' }, children: [
+          { data: { id: '31', parentId: '4', custom: '12' }, children: [] },
+        ],
+      },
+      {
+        data: { id: '418', parentId: null, custom: 'ü' }, children: [
+          { data: { id: '1941', parentId: '418', custom: 'de' }, children: [] },
+          { data: { id: '1', parentId: '418', custom: 'ZZZz' }, children: [] },
+        ],
+      },
     ])
   })
 
@@ -31,13 +35,40 @@ describe('arrayToTree', () => {
       ] as any),
       { id: 'num', parentId: 'ref' },
     )).to.deep.equal([
-      { data: { num: '4', ref: null, custom: 'abc' }, children: [
-        { data: { num: '31', ref: '4', custom: '12' }, children: [] },
-      ] },
-      { data: { num: '418', ref: null, custom: 'ü' }, children: [
-        { data: { num: '1941', ref: '418', custom: 'de' }, children: [] },
-        { data: { num: '1', ref: '418', custom: 'ZZZz' }, children: [] },
-      ] },
+      {
+        data: { num: '4', ref: null, custom: 'abc' }, children: [
+          { data: { num: '31', ref: '4', custom: '12' }, children: [] },
+        ],
+      },
+      {
+        data: { num: '418', ref: null, custom: 'ü' }, children: [
+          { data: { num: '1941', ref: '418', custom: 'de' }, children: [] },
+          { data: { num: '1', ref: '418', custom: 'ZZZz' }, children: [] },
+        ],
+      },
+    ])
+  })
+
+  it('should ignore objects if parentId does not exist', () => {
+    expect(arrayToTree([
+      { id: '4', parentId: null, custom: 'abc' },
+      { id: '31', parentId: '4', custom: '12' },
+      { id: '1941', parentId: '418', custom: 'de' },
+      { id: '1', parentId: '418', custom: 'ZZZz' },
+      { id: '418', parentId: null, custom: 'ü' },
+      { id: '1313', parentId: '13', custom: 'Not existing' },
+    ])).to.deep.equal([
+      {
+        data: { id: '4', parentId: null, custom: 'abc' }, children: [
+          { data: { id: '31', parentId: '4', custom: '12' }, children: [] },
+        ],
+      },
+      {
+        data: { id: '418', parentId: null, custom: 'ü' }, children: [
+          { data: { id: '1941', parentId: '418', custom: 'de' }, children: [] },
+          { data: { id: '1', parentId: '418', custom: 'ZZZz' }, children: [] },
+        ],
+      },
     ])
   })