Improve SceneGestureHandlerTest tests to support suspended methods calls

import androidx.compose.ui.test.ExperimentalTestApi

import androidx.compose.ui.test.TestMonotonicFrameClock

import kotlinx.coroutines.CoroutineScope

import kotlinx.coroutines.ExperimentalCoroutinesApi

import kotlinx.coroutines.test.TestCoroutineScheduler

import kotlinx.coroutines.test.TestScope

import kotlinx.coroutines.test.runTest

import kotlinx.coroutines.withContext

 * function.

 *

 * The [TestCoroutineScheduler] is passed to provide the functionality to wait for idle.

 *

 * Note: Please refer to the documentation for [runTest], as this feature utilizes it. This will

 * provide a comprehensive understanding of all its behaviors.

 */

@OptIn(ExperimentalTestApi::class)

@OptIn(ExperimentalTestApi::class, ExperimentalCoroutinesApi::class)

fun runMonotonicClockTest(block: suspend MonotonicClockTestScope.() -> Unit) = runTest {

    // We need a CoroutineScope (like a TestScope) to create a TestMonotonicFrameClock.

    withContext(TestMonotonicFrameClock(this)) {

        MonotonicClockTestScope(coroutineScope = this, testScheduler = testScheduler).block()

    val testScope: TestScope = this

    withContext(TestMonotonicFrameClock(coroutineScope = testScope)) {

        val testScopeWithMonotonicFrameClock: CoroutineScope = this

        val scope =

            MonotonicClockTestScope(

                testScope = testScopeWithMonotonicFrameClock,

                testScheduler = testScope.testScheduler,

                backgroundScope = backgroundScope,

            )

        // Run the test

        scope.block()

    }

}

/**

 * A coroutine scope that for launching test coroutines for Compose.

 *

 * @param testScheduler The delay-skipping scheduler used by the test dispatchers running the code

 *   in this scope (see [TestScope.testScheduler]).

 * @param backgroundScope A scope for background work (see [TestScope.backgroundScope]).

 */

class MonotonicClockTestScope(

    coroutineScope: CoroutineScope,

    val testScheduler: TestCoroutineScheduler

) : CoroutineScope by coroutineScope

    testScope: CoroutineScope,

    val testScheduler: TestCoroutineScheduler,

    val backgroundScope: CoroutineScope,

) : CoroutineScope by testScope