Add test for remote config encoder

Author: ulrikandersen

__test__/projects/RemoteConfigEncoder.test.ts

@@ -0,0 +1,38 @@
+import RemoteConfigEncoder from "@/features/projects/domain/RemoteConfigEncoder"
+import { IEncryptionService } from "@/features/encrypt/EncryptionService"
+import RemoteConfig from "@/features/projects/domain/RemoteConfig"
+import { ZodError } from "zod"
+
+describe('RemoteConfigEncoder', () => {
+    const encryptionService: IEncryptionService = {
+        encrypt: (data: string) => `encrypted-${data}`,
+        decrypt: (data: string) => data.replace('encrypted-', '')
+    }
+
+    const encoder = new RemoteConfigEncoder(encryptionService)
+
+    it('should encode a remote config by first encrypting and then encoding with base64', () => {
+        const remoteConfig: RemoteConfig = { url: 'https://example.com/spec.yaml' }
+        const encoded = encoder.encode(remoteConfig)
+        const expectedEncoded = Buffer.from('encrypted-{"url":"https://example.com/spec.yaml"}').toString('base64')
+        expect(encoded).toEqual(expectedEncoded)
+    })
+
+    it('should decode an encoded string', () => {
+        const encodedString = Buffer.from('encrypted-{"url":"https://example.com/spec.yaml"}').toString('base64')
+        const decoded = encoder.decode(encodedString)
+        const expectedDecoded: RemoteConfig = { url: 'https://example.com/spec.yaml' }
+        expect(decoded).toEqual(expectedDecoded)
+    })
+
+    it('should throw an error if the decrypted string is not valid JSON', () => {
+        const invalidJson = Buffer.from('encrypted-invalid-json').toString('base64')
+        expect(() => encoder.decode(invalidJson)).toThrow("Unexpected token i in JSON at position 0")
+    })
+
+    it('should throw an error if the remote config is not valid', () => {
+        const remoteConfig: RemoteConfig = { url: '' }
+        const encoded = encoder.encode(remoteConfig)
+        expect(() => encoder.decode(encoded)).toThrow(ZodError)
+    })
+})