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pkg/module/memfs_test.go
58 строк
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Matthieu MOREL
ci(deps): enable testifylint linter on .*_test.go$ (#6688)
16 май 2024, 07:29
Не верифицирован
16 май 2024, 07:29
9d26ae8
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package module import ( "io" "io/fs" "os" "strings" "testing" "github.com/stretchr/testify/require" ) func TestMemFS(t *testing.T) { m := &memFS{} require.Nil(t, m.current) const path, content = "/usr/foo/bar.txt", "my-content" err := m.initialize(path, strings.NewReader(content)) require.NoError(t, err) require.NotNil(t, m.current) t.Run("happy", func(t *testing.T) { f, err := m.Open(path) require.NoError(t, err) actual, err := io.ReadAll(f) require.NoError(t, err) require.Equal(t, content, string(actual)) }) t.Run("not found", func(t *testing.T) { _, err = m.Open(path + "tmp") require.ErrorIs(t, err, os.ErrNotExist) }) } func TestMemFS_NilIsDirectory(t *testing.T) { // Wasm module initializes before an FS has been // associated to this memFS. We handle nil // so that the guest knows that the mount will map // to a directory in the future. m := &memFS{} require.Nil(t, m.current) f, err := m.Open(".") require.NoError(t, err) t.Run("stat is dir", func(t *testing.T) { st, err := f.Stat() require.NoError(t, err) require.True(t, st.IsDir()) }) t.Run("read invalid", func(t *testing.T) { buf := make([]byte, 4) _, err = f.Read(buf) require.ErrorIs(t, err, fs.ErrInvalid) }) }