Add bare minimum test

pkg/launcher/paths_other_test.go

@@ -0,0 +1,20 @@
+//go:build !windows
+// +build !windows
+
+package launcher
+
+import (
+	"path/filepath"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+)
+
+func TestDetermineRootDirectoryOverride(t *testing.T) {
+	t.Parallel()
+
+	// On non-Windows OSes, we don't override the root directory -- confirm we always return
+	// optsRootDir instead of an override
+	optsRootDir := filepath.Join("some", "dir", "somewhere")
+	require.Equal(t, optsRootDir, DetermineRootDirectoryOverride(optsRootDir, "", ""))
+}