Implement login and signup test with json.

pubspec.lock

@@ -9,6 +9,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.13.0"
+  bcrypt:
+    dependency: "direct main"
+    description:
+      name: bcrypt
+      sha256: "9dc3f234d5935a76917a6056613e1a6d9b53f7fa56f98e24cd49b8969307764b"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.3"
   boolean_selector:
     dependency: transitive
     description:
@@ -168,6 +176,30 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.9.1"
+  path_provider:
+    dependency: "direct main"
+    description:
+      name: path_provider
+      sha256: "50c5dd5b6e1aaf6fb3a78b33f6aa3afca52bf903a8a5298f53101fdaee55bbcd"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.5"
+  path_provider_android:
+    dependency: transitive
+    description:
+      name: path_provider_android
+      sha256: "993381400e94d18469750e5b9dcb8206f15bc09f9da86b9e44a9b0092a0066db"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.18"
+  path_provider_foundation:
+    dependency: transitive
+    description:
+      name: path_provider_foundation
+      sha256: "16eef174aacb07e09c351502740fa6254c165757638eba1e9116b0a781201bbd"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.2"
   path_provider_linux:
     dependency: transitive
     description: