You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: basefs_test.go
    path of file: ./repos/hugo/hugolib/filesystems
    
    the code of the file until where you have to start completion: // Copyright 2024 The Hugo Authors. All rights reserved.
//
// Licens
    
func TestStaticFs(t *testing.T) {
	c := qt.New(t)
	v := config.New()
	workDir := "mywork"
	v.Set("workingDir", workDir)
	v.Set("themesDir", "themes")
	v.Set("staticDir", "mystatic")
	v.Set("theme", []string{"t1", "t2"})

	afs := afero.NewMemMapFs()

	themeStaticDir := filepath.Join(workDir, "themes", "t1", "static")
	themeStaticDir2 := filepath.Join(workDir, "themes", "t2", "static")

	afero.WriteFile(afs, filepath.Join(workDir, "mystatic", "f1.txt"), []byte("Hugo Rocks!"), 0o755)
	afero.WriteFile(afs, filepath.Join(themeStaticDir, "f1.txt"), []byte("Hugo Themes Rocks!"), 0o755)
	afero.WriteFile(afs, filepath.Join(themeStaticDir, "f2.txt"), []byte("Hugo Themes Still Rocks!"), 0o755)
	afero.WriteFile(afs, filepath.Join(themeStaticDir2, "f2.txt"), []byte("Hugo Themes Rocks in t2!"), 0o755)

	conf := testconfig.GetTestConfig(afs, v)
	fs := hugofs.NewFrom(afs, conf.BaseConfig())
	p, err := paths.New(fs, conf)

	c.Assert(err, qt.IsNil)
	bfs, err := filesystems.NewBase(p, nil)
	c.Assert(err, qt.IsNil)

	sfs := bfs.StaticFs("en")

	checkFileContent(sfs, "f1.txt", c, "Hugo Rocks!")
	checkFileContent(sfs, "f2.txt", c, "Hugo Themes Still Rocks!")
}