add tests for paged loading components

common/compose/src/jvmTest/kotlin/LoadableComponentTests.kt

@@ -0,0 +1,42 @@
+import androidx.compose.runtime.remember
+import androidx.compose.ui.test.ExperimentalTestApi
+import androidx.compose.ui.test.runComposeUiTest
+import dev.inmo.micro_utils.common.compose.LoadableComponent
+import dev.inmo.micro_utils.coroutines.SpecialMutableStateFlow
+import kotlinx.coroutines.flow.MutableSharedFlow
+import kotlinx.coroutines.flow.filter
+import kotlinx.coroutines.flow.first
+import kotlinx.coroutines.flow.firstOrNull
+import org.jetbrains.annotations.TestOnly
+import kotlin.test.Test
+import kotlin.test.assertTrue
+
+class LoadableComponentTests {
+    @OptIn(ExperimentalTestApi::class)
+    @Test
+    @TestOnly
+    fun testSimpleLoad() = runComposeUiTest {
+        val loadingFlow = SpecialMutableStateFlow<Int>(0)
+        val loadedFlow = SpecialMutableStateFlow<Int>(0)
+        setContent {
+            LoadableComponent<Int>({
+                loadingFlow.filter { it == 1 }.first()
+            }) {
+                assert(dataState.value.data == 1)
+                remember {
+                    loadedFlow.value = 2
+                }
+            }
+        }
+
+        waitForIdle()
+
+        assertTrue(loadedFlow.value == 0)
+
+        loadingFlow.value = 1
+
+        waitForIdle()
+
+        assertTrue(loadedFlow.value == 2)
+    }
+}