only execute KWallet test, if DISPLAY env variable is present

Author: infeo

src/test/java/org/cryptomator/linux/keychain/KDEWalletKeychainAccessTest.java

@@ -3,6 +3,7 @@
 import org.junit.jupiter.api.Assertions;
 import org.junit.jupiter.api.BeforeAll;
 import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.condition.EnabledIf;
 import org.junit.jupiter.api.condition.EnabledOnOs;
 import org.junit.jupiter.api.condition.OS;
 
@@ -14,6 +15,7 @@
  * Unit tests for KWallet access via DBUS.
  */
 @EnabledOnOs(OS.LINUX)
+@EnabledIf("osEnvironmentSuitable")
 public class KDEWalletKeychainAccessTest {
 
 	private static boolean isInstalled;
@@ -40,4 +42,9 @@ public void testIsSupported() {
 		KDEWalletKeychainAccess keychainAccess = new KDEWalletKeychainAccess();
 		Assertions.assertEquals(isInstalled, keychainAccess.isSupported());
 	}
+
+
+	private static boolean osEnvironmentSuitable() {
+		return System.getenv().containsKey("DISPLAY");
+	}
 }