From 4fe7b601af8621b5c7fdb3bd7c3de0a816afe1bb Mon Sep 17 00:00:00 2001
From: Benoit Marty <benoit@matrix.org>
Date: Thu, 18 Apr 2024 14:08:18 +0200
Subject: [PATCH] Add Konsist check to ensure that '@PreviewLightDark' is not
 used.

---
 .../android/tests/konsist/KonsistPreviewTest.kt     | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/tests/konsist/src/test/kotlin/io/element/android/tests/konsist/KonsistPreviewTest.kt b/tests/konsist/src/test/kotlin/io/element/android/tests/konsist/KonsistPreviewTest.kt
index f82f4dac7c..04f5e2c0b3 100644
--- a/tests/konsist/src/test/kotlin/io/element/android/tests/konsist/KonsistPreviewTest.kt
+++ b/tests/konsist/src/test/kotlin/io/element/android/tests/konsist/KonsistPreviewTest.kt
@@ -16,8 +16,10 @@
 
 package io.element.android.tests.konsist
 
+import androidx.compose.ui.tooling.preview.PreviewLightDark
 import com.lemonappdev.konsist.api.Konsist
 import com.lemonappdev.konsist.api.ext.list.withAllAnnotationsOf
+import com.lemonappdev.konsist.api.verify.assertEmpty
 import com.lemonappdev.konsist.api.verify.assertTrue
 import io.element.android.libraries.designsystem.preview.PreviewsDayNight
 import org.junit.Test
@@ -57,4 +59,15 @@ class KonsistPreviewTest {
                 it.hasInternalModifier
             }
     }
+
+    @Test
+    fun `Ensure that '@PreviewLightDark' is not used`() {
+        Konsist
+            .scopeFromProject()
+            .functions()
+            .withAllAnnotationsOf(PreviewLightDark::class)
+            .assertEmpty(
+                additionalMessage = "Use '@PreviewsDayNight' instead of '@PreviewLightDark', or else screenshot(s) will not be generated.",
+            )
+    }
 }