Adds an initial unit test

test/api_test.dart

@@ -0,0 +1,45 @@
+/*
+ * Unit tests for the API class
+ */
+
+import 'package:test/test.dart';
+
+import 'package:inventree/api.dart';
+import 'package:inventree/user_profile.dart';
+
+void main() {
+
+  setUp(() async {
+    // Ensure we have a user profile available
+    // This profile will match the dockerized InvenTree setup, running locally
+
+    print("Creating user profile");
+    await UserProfileDBManager().addProfile(UserProfile(
+      username: "testuser",
+      password: "testpassword""",
+      server: "http://localhost:12345",
+      selected: true,
+    ));
+
+    final profiles = await UserProfileDBManager().getAllProfiles();
+
+    // Ensure we have one profile available
+    expect(profiles.length, equals(1));
+
+    // Select the profile
+    await UserProfileDBManager().selectProfile(profiles.first.key ?? 1);
+
+  });
+
+  test("Select Profile", () async {
+    // Ensure that we can select a user profile
+    final prf = await UserProfileDBManager().getSelectedProfile();
+
+    expect(prf, isNot(null));
+
+    expect(prf?.username, equals("testuser"));
+    expect(prf?.password, equals("testpassword"));
+    expect(prf?.server, equals("http://localhost:12345"));
+  });
+
+}