Implementing the Stopwatch

composeApp/src/commonMain/kotlin/com/arkivanov/minesweeper/game/GameContent.kt

@@ -95,7 +95,7 @@ internal fun GameContent(component: GameComponent, modifier: Modifier = Modifier
                     Counter(
                         value = timer,
                         modifier = Modifier.weight(1f).semantics {
-                            this.contentDescription = "Stopwatch, current time: $timer"
+                            this.contentDescription = "Timer is on $timer"
                             this.role = Role.Image
                         },
                     )

composeApp/src/commonTest/kotlin/com/arkivanov/minesweeper/game/DefaultGameComponentTest.kt

@@ -4,12 +4,12 @@ import com.arkivanov.decompose.DefaultComponentContext
 import com.arkivanov.essenty.lifecycle.LifecycleRegistry
 import com.arkivanov.essenty.lifecycle.resume
 import com.arkivanov.mvikotlin.main.store.DefaultStoreFactory
-import kotlinx.coroutines.ExperimentalCoroutinesApi
 import kotlinx.coroutines.test.StandardTestDispatcher
 import kotlinx.coroutines.test.TestCoroutineScheduler
 import kotlin.test.BeforeTest
 import kotlin.test.Test
 import kotlin.test.assertEquals
+import kotlin.time.Duration.Companion.seconds
 
 @Suppress("TestFunctionName")
 class DefaultGameComponentTest {
@@ -18,7 +18,7 @@ class DefaultGameComponentTest {
     private val gameComponent = DefaultGameComponent(
         componentContext = DefaultComponentContext(lifecycle = lifecycle),
         storeFactory = DefaultStoreFactory(),
-        settings = GameSettings(),
+        settings = GameSettings(width = 20, height = 20, maxMines = 398),
         mainCoroutineContext = StandardTestDispatcher(scheduler = coroutineScheduler)
     )
 
@@ -31,10 +31,46 @@ class DefaultGameComponentTest {
     }
 
     @Test
-    fun WHEN_created_THEN_stopwatch_on_START() {
-        assertEquals(GameStatus.INITIALIZED, state.gameStatus)
+    fun GIVEN_created_WHEN_cell_clicked_THEN_status_STARTED() {
+        clickCellPrimary(x = 0, y = 0)
+
+        assertEquals(GameStatus.STARTED, state.gameStatus)
+    }
+
+    @Test
+    fun GIVEN_created_WHEN_cell_clicked_THEN_timer_shows_0() {
+        clickCellPrimary(x = 0, y = 0)
+
         assertEquals(0, state.timer)
     }
 
-    // TODO: Write more tests (need a bit dive in to work with TestCoroutineScheduler
-}
+    @Test
+    fun GIVEN_game_started_WHEN_one_second_passed_THEN_timer_shows_1() {
+        clickCellPrimary(x = 0, y = 0)
+
+        coroutineScheduler.advanceTimeBy(1.seconds)
+        coroutineScheduler.runCurrent()
+
+        assertEquals(1, state.timer)
+    }
+
+    @Test
+    fun GIVEN_game_started_WHEN_click_on_mine_cell_THEN_timer_STOPS() {
+        clickCellPrimary(x = 0, y = 0)
+
+        coroutineScheduler.advanceTimeBy(10.seconds)
+        coroutineScheduler.runCurrent()
+
+        clickCellPrimary(x = 10, y = 10)
+
+        coroutineScheduler.advanceTimeBy(10.seconds)
+        coroutineScheduler.runCurrent()
+
+        assertEquals(10, state.timer)
+    }
+
+    private fun clickCellPrimary(x: Int, y: Int) {
+        gameComponent.onCellTouchedPrimary(x = x, y = y)
+        gameComponent.onCellReleased(x = y, y = y)
+    }
+}