diff --git a/src/frontend/tests/login.spec.ts b/src/frontend/tests/login.spec.ts
index cb70af46f..e3980912a 100644
--- a/src/frontend/tests/login.spec.ts
+++ b/src/frontend/tests/login.spec.ts
@@ -1,4 +1,4 @@
-import { test } from "@playwright/test";
+import { expect, test } from "@playwright/test";
 
 test.describe("Login Tests", () => {
   test("Login_Success", async ({ page }) => {
@@ -29,4 +29,100 @@ test.describe("Login Tests", () => {
         .evaluate((el) => el.children)
     ).toBeTruthy();
   });
+
+  test("Login Error", async ({ page }) => {
+    await page.route("**/api/v1/login", async (route) => {
+      const json = { detail: "Incorrect username or password" };
+      await route.fulfill({ json, status: 401 });
+    });
+
+    await page.goto("http://localhost:3000/");
+    await page.waitForURL("http://localhost:3000/login");
+    await page.waitForURL("http://localhost:3000/login", { timeout: 100 });
+    await page.getByPlaceholder("Username").click();
+    await page.getByPlaceholder("Username").fill("test");
+    await page.getByPlaceholder("Password").click();
+    await page.getByPlaceholder("Password").fill("test5");
+    await page.getByRole("button", { name: "Sign in" }).click();
+    await page.getByRole("heading", { name: "Error signing in" }).click();
+  });
+
+  test("Login create account wrong form", async ({ page }) => {
+    const fullfillForm = async (username, password, confirmPassword) => {
+      await page.getByPlaceholder("Username").click();
+      await page.getByPlaceholder("Username").fill(username);
+      await page.getByPlaceholder("Password", { exact: true }).click();
+      await page.getByPlaceholder("Password", { exact: true }).fill(password);
+      await page.getByPlaceholder("Confirm your password").click();
+      await page
+        .getByPlaceholder("Confirm your password")
+        .fill(confirmPassword);
+    };
+
+    await page.goto("http://localhost:3000/");
+    await page.waitForURL("http://localhost:3000/login");
+    await page.waitForURL("http://localhost:3000/login", { timeout: 100 });
+    await page
+      .getByRole("button", { name: "Don't have an account? Sign Up" })
+      .click();
+    await page.getByText("Sign up to Langflow").click();
+    await page.goto("http://localhost:3000/signup");
+    await page.getByText("Sign up to Langflow").click();
+
+    await fullfillForm("name", "vazz", "vazz5");
+    expect(
+      await page.getByRole("button", { name: "Sign up" }).isDisabled()
+    ).toBeTruthy();
+    await fullfillForm("", "vazz", "vazz");
+    expect(
+      await page.getByRole("button", { name: "Sign up" }).isDisabled()
+    ).toBeTruthy();
+    await fullfillForm("name", "", "");
+    expect(
+      await page.getByRole("button", { name: "Sign up" }).isDisabled()
+    ).toBeTruthy();
+    await fullfillForm("", "", "");
+    expect(
+      await page.getByRole("button", { name: "Sign up" }).isDisabled()
+    ).toBeTruthy();
+  });
+  test("Login create account success", async ({ page }) => {
+    await page.route("**/api/v1/users/", async (route) => {
+      const json = {
+        id: "e9ac1bdc-429b-475d-ac03-d26f9a2a3210",
+        username: "teste",
+        profile_image: null,
+        is_active: false,
+        is_superuser: false,
+        create_at: "2023-09-21T01:45:51.873303",
+        updated_at: "2023-09-21T01:45:51.873305",
+        last_login_at: null,
+      };
+      await route.fulfill({ json, status: 201 });
+    });
+    const submitForm = async (username, password, confirmPassword) => {
+      await page.getByPlaceholder("Username").click();
+      await page.getByPlaceholder("Username").fill(username);
+      await page.getByPlaceholder("Password", { exact: true }).click();
+      await page.getByPlaceholder("Password", { exact: true }).fill(password);
+      await page.getByPlaceholder("Confirm your password").click();
+      await page
+        .getByPlaceholder("Confirm your password")
+        .fill(confirmPassword);
+    };
+
+    await page.goto("http://localhost:3000/");
+    await page.waitForURL("http://localhost:3000/login");
+    await page.waitForURL("http://localhost:3000/login", { timeout: 100 });
+    await page
+      .getByRole("button", { name: "Don't have an account? Sign Up" })
+      .click();
+    await page.getByText("Sign up to Langflow").click();
+    await page.goto("http://localhost:3000/signup");
+    await page.getByText("Sign up to Langflow").click();
+    await submitForm("teste", "pass", "pass");
+    await page.getByRole("button", { name: "Sign up" }).click();
+    await page.waitForURL("http://localhost:3000/login", { timeout: 1000 });
+    await page.getByText("Account created! Await admin activation.").click();
+  });
 });