How will you test the login page of a mobile application with fields for name, password, and a button?

To test the login page of a mobile application with fields for name, password, and a button, the following aspects should be checked:

1. Field validation:

   • Verify that the "name" and "password" fields are mandatory.
   • Check length and format restrictions (if any).
   • Test behavior when entering incorrect data.

2. Login button behavior:

   • The button is active only when required fields are filled.
   • Attempt login with correct data upon clicking.
   • Display appropriate message on login failure.

3. UI/UX:

   • Verify correct display of elements on different devices and orientations.
   • Ensure the keyboard appears and hides correctly.

4. Security:

   • Verify that the password is hidden during input.
   • Check protection against SQL injections and other vulnerabilities.

5. Automation:

   • Write UI tests using tools like Appium or Espresso.

Example of an automated test in Espresso (Android):

onView(withId(R.id.username)).perform(typeText("user"));
onView(withId(R.id.password)).perform(typeText("pass"));
closeSoftKeyboard();
onView(withId(R.id.login_button)).perform(click());
onView(withText("Welcome"))
    .check(matches(isDisplayed()));