Compose UI testing in Android Kotlin - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to create a Compose test rule.

Android Kotlin

val composeTestRule = create[1]Rule()

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AComposeTest

BAndroidCompose

CComposeUi

DComposeActivity

Attempts:

3 left

💡 Hint

Common Mistakes

Using createComposeTestRule() which does not exist.

Using createComposeUiRule() which is incorrect.

The correct function to create a Compose test rule is createAndroidComposeRule().

2fill in blank

medium

Complete the code to set the content for Compose UI testing.

Android Kotlin

composeTestRule.[1] {
  Text("Hello Compose")
}

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AstartContent

BlaunchContent

CsetContent

DshowContent

Attempts:

3 left

💡 Hint

Common Mistakes

Using launchContent() which is not a valid method.

Using showContent() which does not exist.

The method to set the Compose UI content in tests is setContent.

3fill in blank

hard

Fix the error in the code to find a node with text "Submit".

Android Kotlin

composeTestRule.onNodeWithText([1]).performClick()

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A'Submit'

BSubmit

Csubmit

D"Submit"

Attempts:

3 left

💡 Hint

Common Mistakes

Using Submit without quotes causes a compile error.

Using single quotes 'Submit' is invalid in Kotlin for strings.

The text parameter must be a string literal with double quotes in Kotlin.

4fill in blank

hard

Fill both blanks to check if a node with content description "Close" is displayed.

Android Kotlin

composeTestRule.onNodeWith[1]("Close").[2]()

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AContentDescription

BassertExists

CassertIsDisplayed

DassertVisible

Attempts:

3 left

💡 Hint

Common Mistakes

Using assertExists() only checks existence, not visibility.

Using assertVisible() is not a valid Compose test method.

Use onNodeWithContentDescription("Close") to find the node and assertIsDisplayed() to check visibility.

5fill in blank

hard

Fill all three blanks to perform a text input and verify it in Compose test.

Android Kotlin

composeTestRule.onNodeWith[1]("Username").performTextInput([2])
composeTestRule.onNodeWithText([3]).assertExists()

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ALabelText

B"user123"

DContentDescription

Attempts:

3 left

💡 Hint

Common Mistakes

Using LabelText which is not a valid matcher.

Not quoting the input string "user123".

Use onNodeWithContentDescription("Username") to find the input, performTextInput("user123") to enter text, and onNodeWithText("user123") to verify.