diff --git a/sop-java-picocli/src/test/java/sop/cli/picocli/TestFileUtil.java b/sop-java-picocli/src/test/java/sop/cli/picocli/TestFileUtil.java
index 385fe1a..d1dc5d1 100644
--- a/sop-java-picocli/src/test/java/sop/cli/picocli/TestFileUtil.java
+++ b/sop-java-picocli/src/test/java/sop/cli/picocli/TestFileUtil.java
@@ -12,10 +12,15 @@ import java.nio.file.Files;
 
 public class TestFileUtil {
 
-    public static File writeTempStringFile(String string) throws IOException {
-        File tempDir = Files.createTempDirectory("tmpDir").toFile();
+    public static File createTempDir() throws IOException {
+        File tempDir = Files.createTempDirectory("tmpFir").toFile();
         tempDir.deleteOnExit();
         tempDir.mkdirs();
+        return tempDir;
+    }
+
+    public static File writeTempStringFile(String string) throws IOException {
+        File tempDir = createTempDir();
 
         File passwordFile = new File(tempDir, "file");
         passwordFile.createNewFile();
diff --git a/sop-java-picocli/src/test/java/sop/cli/picocli/commands/InlineDetachCmdTest.java b/sop-java-picocli/src/test/java/sop/cli/picocli/commands/InlineDetachCmdTest.java
new file mode 100644
index 0000000..3a16c61
--- /dev/null
+++ b/sop-java-picocli/src/test/java/sop/cli/picocli/commands/InlineDetachCmdTest.java
@@ -0,0 +1,74 @@
+// SPDX-FileCopyrightText: 2022 Paul Schaub <vanitasvitae@fsfe.org>
+//
+// SPDX-License-Identifier: Apache-2.0
+
+package sop.cli.picocli.commands;
+
+import com.ginsberg.junit.exit.ExpectSystemExitWithStatus;
+import org.junit.jupiter.api.BeforeEach;
+import org.junit.jupiter.api.Test;
+import sop.ReadyWithResult;
+import sop.SOP;
+import sop.Signatures;
+import sop.cli.picocli.SopCLI;
+import sop.cli.picocli.TestFileUtil;
+import sop.exception.SOPGPException;
+import sop.operation.InlineDetach;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.nio.charset.StandardCharsets;
+
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+public class InlineDetachCmdTest {
+
+    InlineDetach inlineDetach;
+
+    @BeforeEach
+    public void mockComponents() {
+        inlineDetach = mock(InlineDetach.class);
+
+        SOP sop = mock(SOP.class);
+        when(sop.inlineDetach()).thenReturn(inlineDetach);
+        SopCLI.setSopInstance(sop);
+    }
+
+    @Test
+    @ExpectSystemExitWithStatus(SOPGPException.MissingArg.EXIT_CODE)
+    public void testMissingSignaturesOutResultsInExit19() {
+        SopCLI.main(new String[] {"inline-detach"});
+    }
+
+    @Test
+    public void testNoArmorIsCalled() throws IOException {
+        // Create temp dir and allocate non-existing tempfile for sigout
+        File tempDir = TestFileUtil.createTempDir();
+        File tempFile = new File(tempDir, "sigs.out");
+        tempFile.deleteOnExit();
+
+        // mock inline-detach
+        when(inlineDetach.message((InputStream) any()))
+                .thenReturn(new ReadyWithResult<Signatures>() {
+                    @Override
+                    public Signatures writeTo(OutputStream outputStream) throws SOPGPException.NoSignature {
+                        return new Signatures() {
+                            @Override
+                            public void writeTo(OutputStream signatureOutputStream) throws IOException {
+                                signatureOutputStream.write("Signatures!\n".getBytes(StandardCharsets.UTF_8));
+                            }
+                        };
+                    }
+                });
+
+        SopCLI.main(new String[] {"inline-detach", "--signatures-out", tempFile.getAbsolutePath(), "--no-armor"});
+        verify(inlineDetach, times(1)).noArmor();
+        verify(inlineDetach, times(1)).message((InputStream) any());
+    }
+}