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// Copyright 2024 The Gitea Authors. All rights reserved.
// SPDX-License-Identifier: MIT
package git
import (
"testing"
"code.gitea.io/gitea/modules/util"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/require"
)
func TestFollowLink(t *testing.T) {
r, err := openRepositoryWithDefaultContext("tests/repos/repo1_bare")
require.NoError(t, err)
defer r.Close()
commit, err := r.GetCommit("37991dec2c8e592043f47155ce4808d4580f9123")
require.NoError(t, err)
// get the symlink
{
lnkFullPath := "foo/bar/link_to_hello"
lnk, err := commit.Tree.GetTreeEntryByPath("foo/bar/link_to_hello")
require.NoError(t, err)
assert.True(t, lnk.IsLink())
// should be able to dereference to target
res, err := EntryFollowLink(commit, lnkFullPath, lnk)
require.NoError(t, err)
assert.Equal(t, "hello", res.TargetEntry.Name())
assert.Equal(t, "foo/nar/hello", res.TargetFullPath)
assert.False(t, res.TargetEntry.IsLink())
assert.Equal(t, "b14df6442ea5a1b382985a6549b85d435376c351", res.TargetEntry.ID.String())
}
{
// should error when called on a normal file
entry, err := commit.Tree.GetTreeEntryByPath("file1.txt")
require.NoError(t, err)
res, err := EntryFollowLink(commit, "file1.txt", entry)
assert.ErrorIs(t, err, util.ErrUnprocessableContent)
assert.Nil(t, res)
}
{
// should error for broken links
entry, err := commit.Tree.GetTreeEntryByPath("foo/broken_link")
require.NoError(t, err)
assert.True(t, entry.IsLink())
res, err := EntryFollowLink(commit, "foo/broken_link", entry)
assert.ErrorIs(t, err, util.ErrNotExist)
assert.Equal(t, "nar/broken_link", res.SymlinkContent)
}
{
// should error for external links
entry, err := commit.Tree.GetTreeEntryByPath("foo/outside_repo")
require.NoError(t, err)
assert.True(t, entry.IsLink())
res, err := EntryFollowLink(commit, "foo/outside_repo", entry)
assert.ErrorIs(t, err, util.ErrNotExist)
assert.Equal(t, "../../outside_repo", res.SymlinkContent)
}
{
// testing fix for short link bug
entry, err := commit.Tree.GetTreeEntryByPath("foo/link_short")
require.NoError(t, err)
res, err := EntryFollowLink(commit, "foo/link_short", entry)
assert.ErrorIs(t, err, util.ErrNotExist)
assert.Equal(t, "a", res.SymlinkContent)
}
}
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