Mobile-specific test cases in Testing Fundamentals - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to check if the app handles screen rotation correctly.

Testing Fundamentals

def test_screen_rotation():
    app.launch()
    app.rotate_screen([1])
    assert app.is_ui_stable()

Drag options to blanks, or click blank then click option'

A"landscape"

B"rotate"

C"portrait"

D"flip"

Attempts:

3 left

💡 Hint

Common Mistakes

Using invalid orientation strings like "flip" or "rotate" which are not recognized.

Forgetting to assert UI stability after rotation.

The correct orientation to test screen rotation is "landscape" or "portrait". Here, we use "landscape" to simulate rotation.

2fill in blank

medium

Complete the code to simulate a low battery condition in the mobile app test.

Testing Fundamentals

def test_low_battery_warning():
    device.set_battery_level([1])
    app.launch()
    assert app.shows_low_battery_warning()

Drag options to blanks, or click blank then click option'

A80

B15

C50

D100

Attempts:

3 left

💡 Hint

Common Mistakes

Setting battery level too high, so warning does not appear.

Not simulating battery level before launching the app.

Battery levels below 20% usually trigger low battery warnings. Here, 15 simulates a low battery state.

3fill in blank

hard

Fix the error in the code that tests app behavior when network is lost.

Testing Fundamentals

def test_network_loss():
    device.set_network_status([1])
    app.perform_sync()
    assert app.sync_failed()

Drag options to blanks, or click blank then click option'

A"no_network"

B"disconnect"

C"offline"

D"lost"

Attempts:

3 left

💡 Hint

Common Mistakes

Using unsupported network status strings causing runtime errors.

Not setting network status before syncing.

The correct network status to simulate no connectivity is "offline". Other options are invalid and cause errors.

4fill in blank

hard

Fill both blanks to create a test that verifies app behavior on different screen sizes.

Testing Fundamentals

def test_screen_size():
    device.set_screen_size([1])
    app.launch()
    assert app.layout_is_responsive([2])

Drag options to blanks, or click blank then click option'

A"small"

B"large"

CTrue

DFalse

Attempts:

3 left

💡 Hint

Common Mistakes

Using incorrect screen size strings.

Asserting with wrong boolean values.

We set the screen size to "small" and expect the layout to be responsive, so True is used for the assertion.

5fill in blank

hard

Fill all three blanks to test app behavior when switching between Wi-Fi and mobile data.

Testing Fundamentals

def test_network_switch():
    device.set_network_type([1])
    app.sync_data()
    device.set_network_type([2])
    app.sync_data()
    assert app.sync_successful([3])

Drag options to blanks, or click blank then click option'

A"wifi"

B"mobile"

CTrue

DFalse

Attempts:

3 left

💡 Hint

Common Mistakes

Using invalid network type strings.

Asserting sync failure instead of success.

The test switches network from "wifi" to "mobile" and expects sync to be successful, so True is asserted.