diff --git a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/components/ShareHelper.kt b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/components/ShareHelper.kt
index 4be867651..02592b6a0 100644
--- a/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/components/ShareHelper.kt
+++ b/amethyst/src/main/java/com/vitorpamplona/amethyst/ui/components/ShareHelper.kt
@@ -22,6 +22,7 @@ package com.vitorpamplona.amethyst.ui.components
 
 import android.content.Context
 import android.net.Uri
+import androidx.annotation.VisibleForTesting
 import androidx.core.content.FileProvider
 import com.vitorpamplona.amethyst.Amethyst
 import com.vitorpamplona.quartz.utils.Log
@@ -85,10 +86,13 @@ object ShareHelper {
             } ?: throw IOException("Unable to open snapshot for: $imageUrl")
         }
 
+    @VisibleForTesting
     internal fun getImageExtension(file: File): String = getMediaExtension(file, isVideo = false)
 
+    @VisibleForTesting
     internal fun getVideoExtension(file: File): String = getMediaExtension(file, isVideo = true)
 
+    @VisibleForTesting
     internal fun getMediaExtension(
         file: File,
         isVideo: Boolean,
diff --git a/amethyst/src/test/java/com/vitorpamplona/amethyst/ui/components/ShareHelperTest.kt b/amethyst/src/test/java/com/vitorpamplona/amethyst/ui/components/ShareHelperTest.kt
index e86d33789..8bbc8a29a 100644
--- a/amethyst/src/test/java/com/vitorpamplona/amethyst/ui/components/ShareHelperTest.kt
+++ b/amethyst/src/test/java/com/vitorpamplona/amethyst/ui/components/ShareHelperTest.kt
@@ -159,7 +159,6 @@ class ShareHelperTest {
 
     private fun createTempFileWithBytes(bytes: ByteArray): File {
         val file = File.createTempFile("sharehelpertest", ".tmp")
-        file.deleteOnExit()
         file.writeBytes(bytes)
         return file
     }