Add more tests for modifycommand

go.mod

@@ -4,7 +4,9 @@ go 1.24.1
 
 require (
 	github.com/bmatcuk/doublestar/v4 v4.8.1
+	github.com/stretchr/testify v1.10.0
 	github.com/yuin/gopher-lua v1.1.1
+	gopkg.in/yaml.v3 v3.0.1
 )
 
 require (
@@ -13,12 +15,14 @@ require (
 	github.com/ProtonMail/go-crypto v1.1.5 // indirect
 	github.com/cloudflare/circl v1.6.0 // indirect
 	github.com/cyphar/filepath-securejoin v0.4.1 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/emirpasic/gods v1.18.1 // indirect
 	github.com/go-git/gcfg v1.5.1-0.20230307220236-3a3c6141e376 // indirect
 	github.com/go-git/go-billy/v5 v5.6.2 // indirect
 	github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99 // indirect
 	github.com/kevinburke/ssh_config v1.2.0 // indirect
 	github.com/pjbgf/sha1cd v0.3.2 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/sergi/go-diff v1.3.2-0.20230802210424-5b0b94c5c0d3 // indirect
 	github.com/skeema/knownhosts v1.3.1 // indirect
 	github.com/xanzy/ssh-agent v0.3.3 // indirect