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mount_test.go
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package mount
import (
"os"
"path/filepath"
"testing"
"github.com/go-git/go-billy/v6"
"github.com/go-git/go-billy/v6/internal/test"
"github.com/go-git/go-billy/v6/memfs"
"github.com/go-git/go-billy/v6/util"
"github.com/stretchr/testify/assert"
)
type mock struct {
test.BasicMock
test.DirMock
test.SymlinkMock
}
func setup() (helper *Mount, underlying *mock, source *mock) {
underlying = &mock{
BasicMock: test.BasicMock{},
DirMock: test.DirMock{},
SymlinkMock: test.SymlinkMock{},
}
source = &mock{
BasicMock: test.BasicMock{},
DirMock: test.DirMock{},
SymlinkMock: test.SymlinkMock{},
}
helper = New(underlying, "/foo", source)
return
}
func TestCreate(t *testing.T) {
helper, underlying, source := setup()
f, err := helper.Create("bar/qux")
assert.NoError(t, err)
assert.Equal(t, filepath.Join("bar", "qux"), f.Name())
assert.Len(t, underlying.CreateArgs, 1)
assert.Equal(t, filepath.Join("bar", "qux"), underlying.CreateArgs[0])
assert.Len(t, source.CreateArgs, 0)
}
func TestCreateMountPoint(t *testing.T) {
helper, _, _ := setup()
f, err := helper.Create("foo")
assert.Nil(t, f)
assert.ErrorIs(t, err, os.ErrInvalid)
}
func TestCreateInMount(t *testing.T) {
helper, underlying, source := setup()
f, err := helper.Create("foo/bar/qux")
assert.NoError(t, err)
assert.Equal(t, filepath.Join("foo", "bar", "qux"), f.Name())
assert.Len(t, underlying.CreateArgs, 0)
assert.Len(t, source.CreateArgs, 1)
assert.Equal(t, filepath.Join("bar", "qux"), source.CreateArgs[0])
}
func TestOpen(t *testing.T) {
helper, underlying, source := setup()
f, err := helper.Open("bar/qux")
assert.NoError(t, err)
assert.Equal(t, filepath.Join("bar", "qux"), f.Name())
assert.Len(t, underlying.OpenArgs, 1)
assert.Equal(t, filepath.Join("bar", "qux"), underlying.OpenArgs[0])
assert.Len(t, source.OpenArgs, 0)
}
func TestOpenMountPoint(t *testing.T) {
helper, _, _ := setup()
f, err := helper.Open("foo")
assert.Nil(t, f)
assert.ErrorIs(t, err, os.ErrInvalid)
}
func TestOpenInMount(t *testing.T) {
helper, underlying, source := setup()
f, err := helper.Open("foo/bar/qux")
assert.NoError(t, err)
assert.Equal(t, filepath.Join("foo", "bar", "qux"), f.Name())
assert.Len(t, underlying.OpenArgs, 0)
assert.Len(t, source.OpenArgs, 1)
assert.Equal(t, source.OpenArgs[0], filepath.Join("bar", "qux"))
}
func TestOpenFile(t *testing.T) {
helper, underlying, source := setup()
f, err := helper.OpenFile("bar/qux", 42, 0777)
assert.NoError(t, err)
assert.Equal(t, filepath.Join("bar", "qux"), f.Name())
assert.Len(t, underlying.OpenFileArgs, 1)
assert.Equal(t, underlying.OpenFileArgs[0],
[3]interface{}{filepath.Join("bar", "qux"), 42, os.FileMode(0777)})
assert.Len(t, source.OpenFileArgs, 0)
}
func TestOpenFileMountPoint(t *testing.T) {
helper, _, _ := setup()
f, err := helper.OpenFile("foo", 42, 0777)
assert.Nil(t, f)
assert.ErrorIs(t, err, os.ErrInvalid)
}
func TestOpenFileInMount(t *testing.T) {
helper, underlying, source := setup()
f, err := helper.OpenFile("foo/bar/qux", 42, 0777)
assert.NoError(t, err)
assert.Equal(t, filepath.Join("foo", "bar", "qux"), f.Name())
assert.Len(t, underlying.OpenFileArgs, 0)
assert.Len(t, source.OpenFileArgs, 1)
assert.Equal(t, source.OpenFileArgs[0],
[3]interface{}{filepath.Join("bar", "qux"), 42, os.FileMode(0777)})
}
func TestStat(t *testing.T) {
helper, underlying, source := setup()
_, err := helper.Stat("bar/qux")
assert.NoError(t, err)
assert.Len(t, underlying.StatArgs, 1)
assert.Equal(t, underlying.StatArgs[0], filepath.Join("bar", "qux"))
assert.Len(t, source.StatArgs, 0)
}
func TestStatInMount(t *testing.T) {
helper, underlying, source := setup()
_, err := helper.Stat("foo/bar/qux")
assert.NoError(t, err)
assert.Len(t, underlying.StatArgs, 0)
assert.Len(t, source.StatArgs, 1)
assert.Equal(t, source.StatArgs[0], filepath.Join("bar", "qux"))
}
func TestRename(t *testing.T) {
helper, underlying, source := setup()
err := helper.Rename("bar/qux", "qux")
assert.NoError(t, err)
assert.Len(t, underlying.RenameArgs, 1)
assert.Equal(t, underlying.RenameArgs[0], [2]string{"bar/qux", "qux"})
assert.Len(t, source.RenameArgs, 0)
}
func TestRenameInMount(t *testing.T) {
helper, underlying, source := setup()
err := helper.Rename("foo/bar/qux", "foo/qux")
assert.NoError(t, err)
assert.Len(t, underlying.RenameArgs, 0)
assert.Len(t, source.RenameArgs, 1)
assert.Equal(t, source.RenameArgs[0],
[2]string{filepath.Join("bar", "qux"), "qux"})
}
func TestRenameCross(t *testing.T) {
underlying := memfs.New()
source := memfs.New()
util.WriteFile(underlying, "file", []byte("foo"), 0777)
fs := New(underlying, "/foo", source)
err := fs.Rename("file", "foo/file")
assert.NoError(t, err)
_, err = underlying.Stat("file")
assert.Equal(t, err, os.ErrNotExist)
_, err = source.Stat("file")
assert.NoError(t, err)
err = fs.Rename("foo/file", "file")
assert.NoError(t, err)
_, err = underlying.Stat("file")
assert.NoError(t, err)
_, err = source.Stat("file")
assert.Equal(t, err, os.ErrNotExist)
}
func TestRemove(t *testing.T) {
helper, underlying, source := setup()
err := helper.Remove("bar/qux")
assert.NoError(t, err)
assert.Len(t, underlying.RemoveArgs, 1)
assert.Equal(t, underlying.RemoveArgs[0], filepath.Join("bar", "qux"))
assert.Len(t, source.RemoveArgs, 0)
}
func TestRemoveMountPoint(t *testing.T) {
helper, _, _ := setup()
err := helper.Remove("foo")
assert.ErrorIs(t, err, os.ErrInvalid)
}
func TestRemoveInMount(t *testing.T) {
helper, underlying, source := setup()
err := helper.Remove("foo/bar/qux")
assert.NoError(t, err)
assert.Len(t, underlying.RemoveArgs, 0)
assert.Len(t, source.RemoveArgs, 1)
assert.Equal(t, source.RemoveArgs[0], filepath.Join("bar", "qux"))
}
func TestReadDir(t *testing.T) {
helper, underlying, source := setup()
_, err := helper.ReadDir("bar/qux")
assert.NoError(t, err)
assert.Len(t, underlying.ReadDirArgs, 1)
assert.Equal(t, underlying.ReadDirArgs[0], filepath.Join("bar", "qux"))
assert.Len(t, source.ReadDirArgs, 0)
}
func TestJoin(t *testing.T) {
helper, underlying, source := setup()
helper.Join("foo", "bar")
assert.Len(t, underlying.JoinArgs, 1)
assert.Equal(t, underlying.JoinArgs[0], []string{"foo", "bar"})
assert.Len(t, source.JoinArgs, 0)
}
func TestReadDirInMount(t *testing.T) {
helper, underlying, source := setup()
_, err := helper.ReadDir("foo/bar/qux")
assert.NoError(t, err)
assert.Len(t, underlying.ReadDirArgs, 0)
assert.Len(t, source.ReadDirArgs, 1)
assert.Equal(t, source.ReadDirArgs[0], filepath.Join("bar", "qux"))
}
func TestMkdirAll(t *testing.T) {
helper, underlying, source := setup()
err := helper.MkdirAll("bar/qux", 0777)
assert.NoError(t, err)
assert.Len(t, underlying.MkdirAllArgs, 1)
assert.Equal(t, underlying.MkdirAllArgs[0],
[2]interface{}{filepath.Join("bar", "qux"), os.FileMode(0777)})
assert.Len(t, source.MkdirAllArgs, 0)
}
func TestMkdirAllInMount(t *testing.T) {
helper, underlying, source := setup()
err := helper.MkdirAll("foo/bar/qux", 0777)
assert.NoError(t, err)
assert.Len(t, underlying.MkdirAllArgs, 0)
assert.Len(t, source.MkdirAllArgs, 1)
assert.Equal(t, source.MkdirAllArgs[0],
[2]interface{}{filepath.Join("bar", "qux"), os.FileMode(0777)})
}
func TestLstat(t *testing.T) {
helper, underlying, source := setup()
_, err := helper.Lstat("bar/qux")
assert.NoError(t, err)
assert.Len(t, underlying.LstatArgs, 1)
assert.Equal(t, underlying.LstatArgs[0], filepath.Join("bar", "qux"))
assert.Len(t, source.LstatArgs, 0)
}
func TestLstatInMount(t *testing.T) {
helper, underlying, source := setup()
_, err := helper.Lstat("foo/bar/qux")
assert.NoError(t, err)
assert.Len(t, underlying.LstatArgs, 0)
assert.Len(t, source.LstatArgs, 1)
assert.Equal(t, source.LstatArgs[0], filepath.Join("bar", "qux"))
}
func TestSymlink(t *testing.T) {
helper, underlying, source := setup()
err := helper.Symlink("../baz", "bar/qux")
assert.NoError(t, err)
assert.Len(t, underlying.SymlinkArgs, 1)
assert.Equal(t, underlying.SymlinkArgs[0],
[2]string{"../baz", filepath.Join("bar", "qux")})
assert.Len(t, source.SymlinkArgs, 0)
}
func TestSymlinkCrossMount(t *testing.T) {
helper, _, _ := setup()
err := helper.Symlink("../foo", "bar/qux")
assert.Error(t, err)
err = helper.Symlink("../foo/qux", "bar/qux")
assert.Error(t, err)
err = helper.Symlink("../baz", "foo")
assert.Error(t, err)
err = helper.Symlink("../../../foo", "foo/bar/qux")
assert.Error(t, err)
}
func TestSymlinkInMount(t *testing.T) {
helper, underlying, source := setup()
err := helper.Symlink("../baz", "foo/bar/qux")
assert.NoError(t, err)
assert.Len(t, underlying.SymlinkArgs, 0)
assert.Len(t, source.SymlinkArgs, 1)
assert.Equal(t, source.SymlinkArgs[0],
[2]string{"../baz", filepath.Join("bar", "qux")})
}
func TestRadlink(t *testing.T) {
helper, underlying, source := setup()
_, err := helper.Readlink("bar/qux")
assert.NoError(t, err)
assert.Len(t, underlying.ReadlinkArgs, 1)
assert.Equal(t, underlying.ReadlinkArgs[0], filepath.Join("bar", "qux"))
assert.Len(t, source.ReadlinkArgs, 0)
}
func TestReadlinkInMount(t *testing.T) {
helper, underlying, source := setup()
_, err := helper.Readlink("foo/bar/qux")
assert.NoError(t, err)
assert.Len(t, underlying.ReadlinkArgs, 0)
assert.Len(t, source.ReadlinkArgs, 1)
assert.Equal(t, source.ReadlinkArgs[0], filepath.Join("bar", "qux"))
}
func TestUnderlyingNotSupported(t *testing.T) {
h := New(&test.BasicMock{}, "/foo", &test.BasicMock{})
_, err := h.ReadDir("qux")
assert.Equal(t, err, billy.ErrNotSupported)
_, err = h.Readlink("qux")
assert.Equal(t, err, billy.ErrNotSupported)
}
func TestSourceNotSupported(t *testing.T) {
_, underlying, _ := setup()
h := New(underlying, "/foo", &test.BasicMock{})
_, err := h.ReadDir("foo")
assert.Equal(t, err, billy.ErrNotSupported)
_, err = h.Readlink("foo")
assert.Equal(t, err, billy.ErrNotSupported)
}
func TestCapabilities(t *testing.T) {
testCapabilities(t, new(test.BasicMock), new(test.BasicMock))
testCapabilities(t, new(test.BasicMock), new(test.OnlyReadCapFs))
testCapabilities(t, new(test.BasicMock), new(test.NoLockCapFs))
testCapabilities(t, new(test.OnlyReadCapFs), new(test.BasicMock))
testCapabilities(t, new(test.OnlyReadCapFs), new(test.OnlyReadCapFs))
testCapabilities(t, new(test.OnlyReadCapFs), new(test.NoLockCapFs))
testCapabilities(t, new(test.NoLockCapFs), new(test.BasicMock))
testCapabilities(t, new(test.NoLockCapFs), new(test.OnlyReadCapFs))
testCapabilities(t, new(test.NoLockCapFs), new(test.NoLockCapFs))
}
func testCapabilities(t *testing.T, a, b billy.Basic) {
aCapabilities := billy.Capabilities(a)
bCapabilities := billy.Capabilities(b)
fs := New(a, "/foo", b)
capabilities := billy.Capabilities(fs)
unionCapabilities := aCapabilities & bCapabilities
assert.Equal(t, capabilities, unionCapabilities)
fs = New(b, "/foo", a)
capabilities = billy.Capabilities(fs)
unionCapabilities = aCapabilities & bCapabilities
assert.Equal(t, capabilities, unionCapabilities)
}