diff --git a/test.sh b/test.sh
index 4a86e4f..9f6beaa 100755
--- a/test.sh
+++ b/test.sh
@@ -7,6 +7,7 @@ GREEN='\033[0;32m'
 
 for o in -A -b -e -E -n -s -t -T -v
 do
+    echo -e "Testing: cat $o"
     cat $o test/* > $TMPCAT
     bin/dcat $o test/* > $TMPDCAT
     if  ! $(diff -q $TMPCAT $TMPDCAT);
diff --git a/test/dcat_test.dart b/test/dcat_test.dart
index c4cca9e..8512387 100644
--- a/test/dcat_test.dart
+++ b/test/dcat_test.dart
@@ -254,6 +254,17 @@ void main() {
       expect(lines.last, equals(sampleText));
     });
 
+    test('cat file - source', () async {
+      final tmp = makeTmpFile();
+      final result = await cat([sampleFile, '-'], tmp.openWrite(),
+          input: File(sourceFile).openRead());
+      expect(result.isSuccess, true, reason: 'result is success');
+      final lines = await tmp.readAsLines();
+      expect(lines.first, startsWith('Lorem'), reason: 'Lorem in first line');
+      expect(lines.last.endsWith('✓'), false,
+          reason: "doesn't end with checkmark");
+    });
+
     test('cat source', () async {
       final tmp = makeTmpFile();
       await cat([sourceFile], tmp.openWrite());