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// Copyright 2023 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package assetfs
import (
"io"
"io/fs"
"os"
"path/filepath"
"testing"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestLayered(t *testing.T) {
dir := filepath.Join(t.TempDir(), "assetfs-layers")
dir1 := filepath.Join(dir, "l1")
dir2 := filepath.Join(dir, "l2")
mkdir := func(elems ...string) {
require.NoError(t, os.MkdirAll(filepath.Join(elems...), 0o755))
}
write := func(content string, elems ...string) {
require.NoError(t, os.WriteFile(filepath.Join(elems...), []byte(content), 0o644))
}
// d1 & f1: only in "l1"; d2 & f2: only in "l2"
// da & fa: in both "l1" and "l2"
mkdir(dir1, "d1")
mkdir(dir1, "da")
mkdir(dir1, "da/sub1")
mkdir(dir2, "d2")
mkdir(dir2, "da")
mkdir(dir2, "da/sub2")
write("dummy", dir1, ".DS_Store")
write("f1", dir1, "f1")
write("fa-1", dir1, "fa")
write("d1-f", dir1, "d1/f")
write("da-f-1", dir1, "da/f")
write("f2", dir2, "f2")
write("fa-2", dir2, "fa")
write("d2-f", dir2, "d2/f")
write("da-f-2", dir2, "da/f")
assets := Layered(Local("l1", dir1), Local("l2", dir2))
f, err := assets.Open("f1")
require.NoError(t, err)
bs, err := io.ReadAll(f)
require.NoError(t, err)
assert.EqualValues(t, "f1", string(bs))
_ = f.Close()
assertRead := func(expected string, expectedErr error, elems ...string) {
bs, err := assets.ReadFile(elems...)
if err != nil {
require.ErrorIs(t, err, expectedErr)
} else {
require.NoError(t, err)
assert.Equal(t, expected, string(bs))
}
}
assertRead("f1", nil, "f1")
assertRead("f2", nil, "f2")
assertRead("fa-1", nil, "fa")
assertRead("d1-f", nil, "d1/f")
assertRead("d2-f", nil, "d2/f")
assertRead("da-f-1", nil, "da/f")
assertRead("", fs.ErrNotExist, "no-such")
files, err := assets.ListFiles(".", true)
require.NoError(t, err)
assert.EqualValues(t, []string{"f1", "f2", "fa"}, files)
files, err = assets.ListFiles(".", false)
require.NoError(t, err)
assert.EqualValues(t, []string{"d1", "d2", "da"}, files)
files, err = assets.ListFiles(".")
require.NoError(t, err)
assert.EqualValues(t, []string{"d1", "d2", "da", "f1", "f2", "fa"}, files)
files, err = assets.ListAllFiles(".", true)
require.NoError(t, err)
assert.EqualValues(t, []string{"d1/f", "d2/f", "da/f", "f1", "f2", "fa"}, files)
files, err = assets.ListAllFiles(".", false)
require.NoError(t, err)
assert.EqualValues(t, []string{"d1", "d2", "da", "da/sub1", "da/sub2"}, files)
files, err = assets.ListAllFiles(".")
require.NoError(t, err)
assert.EqualValues(t, []string{
"d1", "d1/f",
"d2", "d2/f",
"da", "da/f", "da/sub1", "da/sub2",
"f1", "f2", "fa",
}, files)
assert.Empty(t, assets.GetFileLayerName("no-such"))
assert.EqualValues(t, "l1", assets.GetFileLayerName("f1"))
assert.EqualValues(t, "l2", assets.GetFileLayerName("f2"))
}
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