feat(data): support parent matching for arrays (#42)

src/scrubber.test.ts

@@ -386,6 +386,16 @@ test('Support scrubbing based on parent', () => {
   })
 })
 
+test('Support scrubbing array based on parent', () => {
+  const data = { nested: { encryption: [{ key: 'secret' }] } }
+  const scrubber = new Scrubber(configParentScrubbersMock())
+  const result = scrubber.scrub(data)
+
+  expect(result).toEqual({
+    nested: { encryption: [{ key: 'replaced' }] },
+  })
+})
+
 test('Support scrubbing based on multi-level parent', () => {
   const data = { multi: { api: { secret: 'notsosecret' }, interim: { secret: '123456' } } }
   const scrubber = new Scrubber(configParentScrubbersMock())

src/scrubber.ts

@@ -73,6 +73,7 @@ export class Scrubber {
   }
 
   private applyScrubbers<T>(data: T, parents: string[] = []): T {
+    const isArray = Array.isArray(data)
     const dataCopy: any = Array.isArray(data) ? [...data] : { ...data }
 
     Object.keys(dataCopy).forEach(key => {
@@ -102,7 +103,8 @@ export class Scrubber {
 
         // Deep traverse
         if (typeof dataCopy[key] === 'object' && dataCopy[key]) {
-          const parentsNext = [...parents, key]
+          // Don't append array keys to parent array as it breaks parent matching
+          const parentsNext = isArray ? parents : [...parents, key]
           dataCopy[key] = this.applyScrubbers(dataCopy[key], parentsNext)
         }