Externalized logic of recovery key creation to reusable utility class

main/ui/src/test/java/org/cryptomator/ui/recoverykey/RecoveryKeyFactoryTest.java

@@ -0,0 +1,59 @@
+package org.cryptomator.ui.recoverykey;
+
+import com.google.common.base.Splitter;
+import org.cryptomator.cryptofs.CryptoFileSystemProvider;
+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.DisplayName;
+import org.junit.jupiter.api.Test;
+import org.junit.jupiter.api.io.TempDir;
+
+import java.io.IOException;
+import java.nio.file.Path;
+
+class RecoveryKeyFactoryTest {
+
+	private WordEncoder wordEncoder = new WordEncoder();
+	private RecoveryKeyFactory inTest = new RecoveryKeyFactory(wordEncoder);
+	
+	@Test
+	@DisplayName("createRecoveryKey() creates 44 words")
+	public void testCreateRecoveryKey(@TempDir Path pathToVault) throws IOException {
+		CryptoFileSystemProvider.initialize(pathToVault, "masterkey.cryptomator", "asd");
+		String recoveryKey = inTest.createRecoveryKey(pathToVault, "asd");
+		Assertions.assertNotNull(recoveryKey);
+		Assertions.assertEquals(44, Splitter.on(' ').splitToList(recoveryKey).size()); // 66 bytes encoded as 44 words
+	}
+
+	@Test
+	@DisplayName("validateRecoveryKey() with garbage input")
+	public void testValidateValidateRecoveryKeyWithGarbageInput() {
+		boolean result = inTest.validateRecoveryKey("löl");
+		Assertions.assertFalse(result);
+	}
+
+	@Test
+	@DisplayName("validateRecoveryKey() with too short input")
+	public void testValidateValidateRecoveryKeyWithTooShortInput() {
+		boolean result = inTest.validateRecoveryKey("them circumstances");
+		Assertions.assertFalse(result);
+	}
+
+	@Test
+	@DisplayName("validateRecoveryKey() with invalid crc32/16")
+	public void testValidateValidateRecoveryKeyWithInvalidCrc() {
+		boolean result = inTest.validateRecoveryKey("them circumstances conduct providing have gesture aged extraordinary generally silently" +
+				" beasts rights sit country highest career wrought silently liberal altogether capacity David conscious word issue" +
+				" ancient directed solitary how spain look smile see won't although dying obtain vol with c. asleep along listen circumstances");
+		Assertions.assertFalse(result);
+	}
+	
+	@Test
+	@DisplayName("validateRecoveryKey() with valid key")
+	public void testValidateValidateRecoveryKeyWithValidKey() {
+		boolean result = inTest.validateRecoveryKey("them circumstances conduct providing have gesture aged extraordinary generally silently" +
+				" beasts rights sit country highest career wrought silently liberal altogether capacity David conscious word issue" +
+				" ancient directed solitary how spain look smile see won't although dying obtain vol with c. asleep along listen riding");
+		Assertions.assertTrue(result);
+	}
+
+}