reading an empty file works for desktop

composeApp/src/androidMain/kotlin/resources/AppFile.android.kt

@@ -17,6 +17,12 @@ actual class AppFile actual constructor(val fileName: String) {
         return context?.deleteFile(fileName) ?: false
     }
 
+    actual fun readText(): String? {
+        return context?.openFileInput(fileName)?.bufferedReader()?.use {
+            it.readText()
+        }
+    }
+
     companion object {
         var context: android.content.Context? = null
     }

composeApp/src/commonMain/kotlin/resources/AppFile.kt

@@ -5,4 +5,5 @@ expect class AppFile(fileName: String) {
     fun exists(): Boolean
     fun create(): Boolean
     fun delete(): Boolean
+    fun readText(): String?
 }

composeApp/src/desktopMain/kotlin/resources/AppFile.desktop.kt

@@ -15,6 +15,14 @@ actual class AppFile actual constructor(fileName: String) {
     }
 
     actual fun delete(): Boolean {
+        if (!file.exists())
+            return false
         return file.delete()
     }
+
+    actual fun readText(): String? {
+        if (!file.exists())
+            return null
+        return file.readText()
+    }
 }

composeApp/src/desktopTest/kotlin/resources/ReadAppFileTest.kt

@@ -0,0 +1,44 @@
+package resources
+
+import io.kotest.matchers.nulls.shouldBeNull
+import io.kotest.matchers.nulls.shouldNotBeNull
+import io.kotest.matchers.string.shouldBeEmpty
+import kotlin.test.AfterTest
+import kotlin.test.BeforeTest
+import kotlin.test.Test
+
+class ReadAppFileTest {
+
+    val appFile = AppFile("appFile.json")
+
+    @BeforeTest
+    fun setup() {
+        if(appFile.exists()) {
+            appFile.delete()
+        }
+    }
+
+    @AfterTest
+    fun teardown() {
+        if(appFile.exists()) {
+            appFile.delete()
+        }
+    }
+
+    @Test
+    fun `Non-existent App File Reads null`() {
+        val appFile = AppFile("appFile.json")
+        appFile.readText()
+            .shouldBeNull()
+    }
+
+    @Test
+    fun `Reads Empty App File`() {
+        val appFile = AppFile("appFile.json")
+        appFile.create()
+
+        appFile.readText()
+            .shouldNotBeNull()
+            .shouldBeEmpty()
+    }
+}

composeApp/src/nativeMain/kotlin/resources/AppFile.native.kt

@@ -13,4 +13,8 @@ actual class AppFile actual constructor(fileName: String) {
     actual fun delete(): Boolean {
         TODO("Not yet implemented")
     }
+
+    actual fun readText(): String? {
+        TODO("Not yet implemented")
+    }
 }