test cat with wrong filename

tests/test_cat.bats

@@ -29,6 +29,7 @@ function teardown {
 
 
 @test "run 'cat' with password argument" {
+  cp "$FILE_TO_HIDE" "${FILE_TO_HIDE}2"
   rm -f "$FILE_TO_HIDE"
 
   local password=$(test_user_password "$TEST_DEFAULT_USER")
@@ -38,6 +39,12 @@ function teardown {
 
   # $output is the output from 'git secret cat' above
   [ "$FILE_CONTENTS" == "$output" ]
+
+  rm "${FILE_TO_HIDE}2"
 }
 
+@test "run 'cat' with wrong filename" {
+  run git secret reveal -d "$TEST_GPG_HOMEDIR" -p "$password" NO_SUCH_FILE
+  [ "$status" -eq 2 ]
+}