Add PositionIndicator test

audio-ui/api/current.api

@@ -2,7 +2,7 @@
 package com.google.android.horologist.audioui {
 
   public final class VolumePositionIndicatorKt {
-    method @androidx.compose.runtime.Composable public static void VolumePositionIndicator(kotlin.jvm.functions.Function0<com.google.android.horologist.audio.VolumeState> volumeState, optional boolean autoHide);
+    method @androidx.compose.runtime.Composable public static void VolumePositionIndicator(optional androidx.compose.ui.Modifier modifier, kotlin.jvm.functions.Function0<com.google.android.horologist.audio.VolumeState> volumeState, optional boolean autoHide);
   }
 
   public final class VolumeScreenKt {

audio-ui/src/androidTest/java/com/google/android/horologist/audioui/VolumePositionIndicatorTest.kt

@@ -0,0 +1,88 @@
+/*
+ * Copyright 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      https://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.google.android.horologist.audioui
+
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.setValue
+import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.testTag
+import androidx.compose.ui.test.assertIsDisplayed
+import androidx.compose.ui.test.junit4.createComposeRule
+import androidx.compose.ui.test.onNodeWithTag
+import androidx.compose.ui.test.onRoot
+import androidx.compose.ui.test.printToLog
+import com.google.android.horologist.audio.VolumeState
+import org.junit.Rule
+import org.junit.Test
+
+class VolumePositionIndicatorTest {
+    @get:Rule
+    val composeTestRule = createComposeRule().apply {
+        mainClock.autoAdvance = false
+    }
+
+    private var volumeState by mutableStateOf(
+        VolumeState(
+            current = 50,
+            min = 0,
+            max = 100,
+            isMute = false
+        )
+    )
+
+    @Test
+    fun testNoAutoHide() {
+        composeTestRule.setContent {
+            VolumePositionIndicator(
+                modifier = Modifier.testTag(TEST_TAG),
+                volumeState = { volumeState },
+                autoHide = false
+            )
+        }
+
+        val positionIndicator = composeTestRule.onNodeWithTag(TEST_TAG)
+
+        positionIndicator.assertIsDisplayed()
+    }
+
+    @Test
+    fun testAutoHide() {
+        composeTestRule.setContent {
+            VolumePositionIndicator(
+                modifier = Modifier.testTag(TEST_TAG),
+                volumeState = { volumeState },
+                autoHide = true
+            )
+        }
+
+        val positionIndicator = composeTestRule.onNodeWithTag(TEST_TAG)
+
+        positionIndicator.assertDoesNotExist()
+
+        volumeState = volumeState.copy(current = 51)
+
+        composeTestRule.mainClock.advanceTimeByFrame()
+        composeTestRule.mainClock.advanceTimeBy(500L)
+
+        composeTestRule.onRoot(useUnmergedTree = true).printToLog("testAutoHide")
+
+        positionIndicator.assertIsDisplayed()
+    }
+}
+
+const val TEST_TAG = "test-item"

audio-ui/src/androidTest/resources/robolectric.properties

@@ -0,0 +1,3 @@
+# Pin SDK to 30 since Robolectric does not currently support API 31:
+# https://github.com/robolectric/robolectric/issues/6635
+sdk=30

audio-ui/src/main/java/com/google/android/horologist/audioui/VolumePositionIndicator.kt

@@ -41,6 +41,7 @@ import kotlinx.coroutines.delay
  */
 @Composable
 public fun VolumePositionIndicator(
+    modifier: Modifier = Modifier,
     volumeState: () -> VolumeState,
     autoHide: Boolean = true
 ) {
@@ -71,9 +72,9 @@ public fun VolumePositionIndicator(
             exit = fadeOut()
         ) {
             PositionIndicator(
+                modifier = modifier,
                 value = {
-                    val vs = volumeState()
-                    vs.current.toFloat()
+                    volumeState().current.toFloat()
                 },
                 range = volumeState().min.toFloat().rangeTo(
                     volumeState().max.toFloat()