Add Konsist test to ensure that BuildConfig.VersionCode is not used.

tests/konsist/src/test/kotlin/io/element/android/tests/konsist/KonsistContentTest.kt

@@ -0,0 +1,35 @@
+/*
+ * Copyright (c) 2023 New Vector Ltd
+ *
+ * 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
+ *
+ *     http://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 io.element.android.tests.konsist
+
+import com.lemonappdev.konsist.api.Konsist
+import com.lemonappdev.konsist.api.ext.list.withImportNamed
+import com.lemonappdev.konsist.api.verify.assertFalse
+import org.junit.Test
+
+class KonsistContentTest {
+    @Test
+    fun `assert that BuildConfig dot VersionCode is not used`() {
+        Konsist
+            .scopeFromProduction()
+            .files
+            .withImportNamed("io.element.android.x.BuildConfig")
+            .assertFalse(additionalMessage = "Please do not use BuildConfig.VERSION_CODE, but use the versionCode from BuildMeta") {
+                it.text.contains("BuildConfig.VERSION_CODE")
+            }
+    }
+}