serve sftp: serve an rclone remote over SFTP

cmd/serve/sftp/connection_test.go

@@ -0,0 +1,25 @@
+// +build !plan9
+
+package sftp
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestShellEscape(t *testing.T) {
+	for i, test := range []struct {
+		unescaped, escaped string
+	}{
+		{"", ""},
+		{"/this/is/harmless", "/this/is/harmless"},
+		{"$(rm -rf /)", "\\$\\(rm\\ -rf\\ /\\)"},
+		{"/test/\n", "/test/'\n'"},
+		{":\"'", ":\\\"\\'"},
+	} {
+		got := shellUnEscape(test.escaped)
+		assert.Equal(t, test.unescaped, got, fmt.Sprintf("Test %d unescaped = %q", i, test.unescaped))
+	}
+}