diff --git a/docs/pda.png b/docs/pda.png
new file mode 100644
index 0000000..5ad8e99
Binary files /dev/null and b/docs/pda.png differ
diff --git a/testdata/get__ok__with__binary_run.ct b/testdata/get__ok__with__binary_run.ct
index 1323238..51f79b2 100644
--- a/testdata/get__ok__with__binary_run.ct
+++ b/testdata/get__ok__with__binary_run.ct
@@ -1,4 +1,4 @@
-$ fecho cmd sh -c bar
+$ fecho cmd sh -c echo hello
 $ pda set foo < cmd
 $ pda get foo --include-binary --run
-sh: line 1: bar: command not found
+hello
diff --git a/testdata/get__ok__with__binary_run_secret.ct b/testdata/get__ok__with__binary_run_secret.ct
index 03313c5..a8ce2e9 100644
--- a/testdata/get__ok__with__binary_run_secret.ct
+++ b/testdata/get__ok__with__binary_run_secret.ct
@@ -1,4 +1,4 @@
-$ fecho cmd sh -c bar
+$ fecho cmd sh -c echo hello
 $ pda set foo < cmd
 $ pda get foo --include-binary --run --secret
-sh: line 1: bar: command not found
+hello