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package e2e
import (
"fmt"
"os"
"strings"
"testing"
)
// GetBinaryPath resolves the path to the wg-wrap binary.
// It prioritizes the WG_WRAP_BIN environment variable.
func GetBinaryPath() (string, error) {
path := os.Getenv("WG_WRAP_BIN")
if path == "" {
return "", fmt.Errorf("WG_WRAP_BIN environment variable not set")
}
if _, err := os.Stat(path); err != nil {
return "", fmt.Errorf("binary not found at path %s: %w", path, err)
}
return path, nil
}
// EnsureBinary returns the path to the wg-wrap binary or skips the test if it's not available.
func EnsureBinary(t *testing.T) string {
t.Helper()
bin, err := GetBinaryPath()
if err != nil {
t.Skipf("skipping test: %v", err)
}
return bin
}
// SetEnvOverrides returns a new slice of environment variables with the provided overrides applied.
// It ensures that overriding an existing variable replaces it rather than appending it.
func SetEnvOverrides(overrides map[string]string) []string {
env := os.Environ()
newEnv := make([]string, 0, len(env)+len(overrides))
for _, e := range env {
matched := false
for k := range overrides {
if strings.HasPrefix(e, k+"=") {
matched = true
break
}
}
if !matched {
newEnv = append(newEnv, e)
}
}
for k, v := range overrides {
newEnv = append(newEnv, fmt.Sprintf("%s=%s", k, v))
}
return newEnv
}
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