birojow

    @Test
    fun test() {
        arrange {
            mockSomething()
            mockSomethingElse()
        }
        act {
            doSomething()
            doSomethingElse()
        }

birojow

    @Test
    fun performChainedCalculationsCorrectly() {
        arrange {
            enterFormula("((515 + 87 x 311) - 302) ÷ 27")
        }
        act {
            performCalculation()
        }
        assert {
            resultIs("1010.0")

birojow

    @Test
    fun shouldCalculateExpressionsCorrectly() {
        arrange {
            enterFormula("((515 + 87 x 311) - 302) ÷ 27")
        }
        act {
            performCalculation()
        }
        assert {
            assertResultIs("1010.0")

birojow

class CalculatorScreenTest {

    @get:Rule
    val composeRule = createAndroidComposeRule(MainActivity::class.java)

    private val robot = CalculatorScreenRobot(composeRule)

    private fun arrange(block: CalculatorScreenRobot.Arrange.() -> Unit) = 
        robot.Arrange().apply(block)
    

birojow

class CalculatorScreenTest {

    @get:Rule
    val composeRule = createAndroidComposeRule(MainActivity::class.java)


    @Test
    fun shouldCalculateExpressionsCorrectly() {
        // arrange
        enterFormula("((515 + 87 x 311) - 302) ÷ 27")

birojow

class CalculatorScreenRobot(
    private val composeRule: AndroidComposeTestRule<ActivityScenarioRule<MainActivity>, MainActivity>
) {

    inner class Arrange {
        fun enterFormula(formula: String) {
            formula.forEach { character ->
                if (!character.isWhitespace()) {
                    val buttonLabel = when (character) {
                        '(', ')' -> "()"

birojow

class CalculatorScreenRobot {

    class Arrange {}

    class Act {}

    class Assert {}
}

birojow

    @Test
    fun shouldCalculateExpressionsCorrectly() {
        // arrange
        enterFormula("((515 + 87 x 311) - 302) ÷ 27")
        
        // act
        performCalculation()
        
        // assert
        assertResultIs("1010.0")

birojow

class CalculatorScreenTest {

    @get:Rule
    val composeRule = createAndroidComposeRule(MainActivity::class.java)

    /**
     * type ((515 + 87 x 311) - 302) ÷ 27
     * hit =
     * assert result is 1010.0
     */