crowdsec/pkg/csstring/expand_test.go

98 lines
2 KiB
Go

package csstring_test
import (
"fmt"
"testing"
"github.com/stretchr/testify/assert"
"github.com/crowdsecurity/crowdsec/pkg/csstring"
)
func TestStrictExpand(t *testing.T) {
t.Parallel()
testenv := func(key string) (string, bool) {
switch key {
case "USER":
return "testuser", true
case "HOME":
return "/home/testuser", true
case "empty":
return "", true
default:
return "", false
}
}
home, _ := testenv("HOME")
user, _ := testenv("USER")
tests := []struct {
input string
expected string
}{
{
input: "$HOME",
expected: home,
},
{
input: "${USER}",
expected: user,
},
{
input: "Hello, $USER!",
expected: fmt.Sprintf("Hello, %s!", user),
},
{
input: "My home directory is ${HOME}",
expected: fmt.Sprintf("My home directory is %s", home),
},
{
input: "This is a $SINGLE_VAR string with ${HOME}",
expected: fmt.Sprintf("This is a $SINGLE_VAR string with %s", home),
},
{
input: "This is a $SINGLE_VAR string with $HOME",
expected: fmt.Sprintf("This is a $SINGLE_VAR string with %s", home),
},
{
input: "This variable does not exist: $NON_EXISTENT_VAR",
expected: "This variable does not exist: $NON_EXISTENT_VAR",
},
{
input: "This is a $MULTI_VAR string with ${HOME} and ${USER}",
expected: fmt.Sprintf("This is a $MULTI_VAR string with %s and %s", home, user),
},
{
input: "This is a ${MULTI_VAR} string with $HOME and $USER",
expected: fmt.Sprintf("This is a ${MULTI_VAR} string with %s and %s", home, user),
},
{
input: "This is a plain string with no variables",
expected: "This is a plain string with no variables",
},
{
input: "$empty",
expected: "",
},
{
input: "",
expected: "",
},
{
input: "$USER:$empty:$HOME",
expected: fmt.Sprintf("%s::%s", user, home),
},
}
for _, tc := range tests {
tc := tc
t.Run(tc.input, func(t *testing.T) {
t.Parallel()
output := csstring.StrictExpand(tc.input, testenv)
assert.Equal(t, tc.expected, output)
})
}
}