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common_test.go
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package git
import (
"fmt"
"os"
"testing"
"time"
"github.com/nobidev/go-git/v6/plumbing"
"github.com/nobidev/go-git/v6/plumbing/cache"
"github.com/nobidev/go-git/v6/plumbing/format/packfile"
"github.com/nobidev/go-git/v6/plumbing/object"
"github.com/nobidev/go-git/v6/storage/filesystem"
"github.com/nobidev/go-git/v6/storage/memory"
"github.com/stretchr/testify/assert"
"github.com/stretchr/testify/suite"
"github.com/go-git/go-billy/v6"
"github.com/go-git/go-billy/v6/memfs"
"github.com/go-git/go-billy/v6/osfs"
"github.com/go-git/go-billy/v6/util"
fixtures "github.com/go-git/go-git-fixtures/v5"
)
type BaseSuite struct {
suite.Suite
Repository *Repository
cache map[string]*Repository
}
func (s *BaseSuite) SetupSuite() {
s.buildBasicRepository()
s.cache = make(map[string]*Repository)
}
func (s *BaseSuite) buildBasicRepository() {
f := fixtures.Basic().One()
s.Repository = s.NewRepository(f)
}
// NewRepository returns a new repository using the .git folder, if the fixture
// is tagged as worktree the filesystem from fixture is used, otherwise a new
// memfs filesystem is used as worktree.
func (s *BaseSuite) NewRepository(f *fixtures.Fixture) *Repository {
dotgit := f.DotGit()
worktree := memfs.New()
if f.Is("worktree") {
worktree = f.Worktree()
}
st := filesystem.NewStorage(dotgit, cache.NewObjectLRUDefault())
r, err := Open(st, worktree)
s.Require().NoError(err)
return r
}
// NewRepositoryWithEmptyWorktree returns a new repository using the .git folder
// from the fixture but without a empty memfs worktree, the index and the
// modules are deleted from the .git folder.
func NewRepositoryWithEmptyWorktree(f *fixtures.Fixture) *Repository {
dotgit := f.DotGit()
err := dotgit.Remove("index")
if err != nil {
panic(err)
}
err = util.RemoveAll(dotgit, "modules")
if err != nil {
panic(err)
}
worktree := memfs.New()
st := filesystem.NewStorage(dotgit, cache.NewObjectLRUDefault())
r, err := Open(st, worktree)
if err != nil {
panic(err)
}
return r
}
func (s *BaseSuite) NewRepositoryFromPackfile(f *fixtures.Fixture) *Repository {
h := f.PackfileHash
if r, ok := s.cache[h]; ok {
return r
}
storer := memory.NewStorage()
p := f.Packfile()
defer func() { _ = p.Close() }()
s.Require().NoError(packfile.UpdateObjectStorage(storer, p))
s.Require().NoError(storer.SetReference(plumbing.NewHashReference(plumbing.HEAD, plumbing.NewHash(f.Head))))
r, err := Open(storer, memfs.New())
s.Require().NoError(err)
s.cache[h] = r
return r
}
func (s *BaseSuite) GetBasicLocalRepositoryURL() string {
fixture := fixtures.Basic().One()
return s.GetLocalRepositoryURL(fixture)
}
func (s *BaseSuite) GetLocalRepositoryURL(f *fixtures.Fixture) string {
return f.DotGit(fixtures.WithTargetDir(s.T().TempDir)).Root()
}
func (s *BaseSuite) TemporalHomeDir() (path string, clean func()) {
home, err := os.UserHomeDir()
s.Require().NoError(err)
fs := osfs.New(home)
relPath, err := util.TempDir(fs, "", "")
s.Require().NoError(err)
path = fs.Join(fs.Root(), relPath)
clean = func() {
_ = util.RemoveAll(fs, relPath)
}
return
}
func (s *BaseSuite) TemporalFilesystem() (fs billy.Filesystem) {
fs = osfs.New(s.T().TempDir())
path, err := util.TempDir(fs, "", "")
s.Require().NoError(err)
fs, err = fs.Chroot(path)
s.Require().NoError(err)
return fs
}
type SuiteCommon struct {
suite.Suite
}
func TestSuiteCommon(t *testing.T) {
suite.Run(t, new(SuiteCommon))
}
var countLinesTests = [...]struct {
i string // the string we want to count lines from
e int // the expected number of lines in i
}{
{"", 0},
{"a", 1},
{"a\n", 1},
{"a\nb", 2},
{"a\nb\n", 2},
{"a\nb\nc", 3},
{"a\nb\nc\n", 3},
{"a\n\n\nb\n", 4},
{"first line\n\tsecond line\nthird line\n", 3},
}
func (s *SuiteCommon) TestCountLines() {
for i, t := range countLinesTests {
o := countLines(t.i)
s.Equal(t.e, o, fmt.Sprintf("subtest %d, input=%q", i, t.i))
}
}
func AssertReferences(t *testing.T, r *Repository, expected map[string]string) {
for name, target := range expected {
expected := plumbing.NewReferenceFromStrings(name, target)
obtained, err := r.Reference(expected.Name(), true)
assert.NoError(t, err)
assert.Equal(t, expected, obtained)
}
}
func AssertReferencesMissing(t *testing.T, r *Repository, expected []string) {
for _, name := range expected {
_, err := r.Reference(plumbing.ReferenceName(name), false)
assert.Error(t, err)
assert.ErrorIs(t, err, plumbing.ErrReferenceNotFound)
}
}
func CommitNewFile(t *testing.T, repo *Repository, fileName string) plumbing.Hash {
wt, err := repo.Worktree()
assert.NoError(t, err)
fd, err := wt.Filesystem.Create(fileName)
assert.NoError(t, err)
_, err = fd.Write([]byte("# test file"))
assert.NoError(t, err)
err = fd.Close()
assert.NoError(t, err)
_, err = wt.Add(fileName)
assert.NoError(t, err)
sha, err := wt.Commit("test commit", &CommitOptions{
Author: &object.Signature{
Name: "test",
Email: "test@example.com",
When: time.Now(),
},
Committer: &object.Signature{
Name: "test",
Email: "test@example.com",
When: time.Now(),
},
})
assert.NoError(t, err)
return sha
}