fix: add trow erros

src/JsonDB.ts

@@ -434,15 +434,23 @@ export class JsonDB {
             return prev
         }, {} as {[key: string]:string})
 
-        let router = ''
+        let normalPath: string[] = []
 
         for await (const pathKey of Object.keys(pathObject)) {
-            router += `/${pathKey}`
+            normalPath.push(`/${pathKey}`)
+
             const pathValue = pathObject[pathKey]
-            const pathIndex = await this.getIndex(router, pathValue)
-            router += `[${pathIndex}]`
+            try {
+                const pathIndex = await this.getIndex(normalPath.join(""), pathValue)
+                if(pathIndex === -1){
+                    throw new DataError(`DataPath: ${normalPath.join("")}/${pathValue} not found.`, 13)
+                }
+                normalPath.push(`[${pathIndex}]`)
+            } catch (error) {
+                throw new DataError(`DataPath: ${normalPath.join("")}/${pathValue} not found.`, 13, error)
+            }
         }
 
-        return router
+        return normalPath.join("")
     }
 }

test/JsonDB.test.ts

@@ -96,6 +96,23 @@ describe('JsonDB', () => {
         })
     })
 
+    describe('toPath()', () => {
+        test('should throw path error when path not found', () => {
+            db.getData = jest.fn(async () => ({
+                a: [
+                    {
+                        id: '1'
+                    }
+                ]
+            }))
+            expect(async () => {
+                await db.toPath('/a/2')
+            }).rejects.toThrow(
+                'DataPath: /a/2 not found.'
+            )
+        })
+    })
+
     // Test was made for code coverage for getParentData, but this cannot return null or undefined.
     // Commented out the test and the checks in JsonDB.ts.
     // describe('push()', () => {