Monorepo for Tangled forked from tangled.org/core
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Go
at master
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import ( "path/filepath" "slices" "testing"
gogit "github.com/go-git/go-git/v5" "github.com/go-git/go-git/v5/plumbing" "github.com/stretchr/testify/assert" "github.com/stretchr/testify/require" "github.com/stretchr/testify/suite"
"tangled.org/core/sets")
type BranchSuite struct { suite.Suite *RepoSuite}
func TestBranchSuite(t *testing.T) { t.Parallel() suite.Run(t, new(BranchSuite))}
func (s *BranchSuite) SetupTest() { s.RepoSuite = NewRepoSuite(s.T())}
func (s *BranchSuite) TearDownTest() { s.RepoSuite.cleanup()}
func (s *BranchSuite) setupRepoWithBranches() { s.init()
// get the initial commit on master head, err := s.repo.r.Head() require.NoError(s.T(), err) initialCommit := head.Hash()
// create multiple branches with commits // branch-1 s.createBranch("branch-1", initialCommit) s.checkoutBranch("branch-1") _ = s.commitFile("file1.txt", "content 1", "Add file1 on branch-1")
// branch-2 s.createBranch("branch-2", initialCommit) s.checkoutBranch("branch-2") _ = s.commitFile("file2.txt", "content 2", "Add file2 on branch-2")
// branch-3 s.createBranch("branch-3", initialCommit) s.checkoutBranch("branch-3") _ = s.commitFile("file3.txt", "content 3", "Add file3 on branch-3")
// branch-4 s.createBranch("branch-4", initialCommit) s.checkoutBranch("branch-4") s.commitFile("file4.txt", "content 4", "Add file4 on branch-4")
// back to master and make a commit s.checkoutBranch("master") s.commitFile("master-file.txt", "master content", "Add file on master")
// verify we have multiple branches refs, err := s.repo.r.References() require.NoError(s.T(), err)
branchCount := 0 err = refs.ForEach(func(ref *plumbing.Reference) error { if ref.Name().IsBranch() { branchCount++ } return nil }) require.NoError(s.T(), err)
// we should have 5 branches: master, branch-1, branch-2, branch-3, branch-4 assert.Equal(s.T(), 5, branchCount, "expected 5 branches")}
func (s *BranchSuite) TestBranches_All() { s.setupRepoWithBranches()
branches, err := s.repo.Branches(&BranchesOptions{}) require.NoError(s.T(), err)
assert.Len(s.T(), branches, 5, "expected 5 branches")
expectedBranches := sets.Collect(slices.Values([]string{ "master", "branch-1", "branch-2", "branch-3", "branch-4", }))
for _, branch := range branches { assert.True(s.T(), expectedBranches.Contains(branch.Reference.Name), "unexpected branch: %s", branch.Reference.Name) assert.NotEmpty(s.T(), branch.Reference.Hash, "branch hash should not be empty") assert.NotNil(s.T(), branch.Commit, "branch commit should not be nil") }}
func (s *BranchSuite) TestBranches_WithLimit() { s.setupRepoWithBranches()
tests := []struct { name string limit int expectedCount int }{ { name: "limit 1", limit: 1, expectedCount: 1, }, { name: "limit 2", limit: 2, expectedCount: 2, }, { name: "limit 3", limit: 3, expectedCount: 3, }, { name: "limit 10 (more than available)", limit: 10, expectedCount: 5, }, }
for _, tt := range tests { s.Run(tt.name, func() { branches, err := s.repo.Branches(&BranchesOptions{ Limit: tt.limit, }) require.NoError(s.T(), err) assert.Len(s.T(), branches, tt.expectedCount, "expected %d branches", tt.expectedCount) }) }}
func (s *BranchSuite) TestBranches_WithOffset() { s.setupRepoWithBranches()
tests := []struct { name string offset int expectedCount int }{ { name: "offset 0", offset: 0, expectedCount: 5, }, { name: "offset 1", offset: 1, expectedCount: 4, }, { name: "offset 2", offset: 2, expectedCount: 3, }, { name: "offset 4", offset: 4, expectedCount: 1, }, { name: "offset 5 (all skipped)", offset: 5, expectedCount: 0, }, { name: "offset 10 (more than available)", offset: 10, expectedCount: 0, }, }
for _, tt := range tests { s.Run(tt.name, func() { branches, err := s.repo.Branches(&BranchesOptions{ Offset: tt.offset, }) require.NoError(s.T(), err) assert.Len(s.T(), branches, tt.expectedCount, "expected %d branches", tt.expectedCount) }) }}
func (s *BranchSuite) TestBranches_WithLimitAndOffset() { s.setupRepoWithBranches()
tests := []struct { name string limit int offset int expectedCount int }{ { name: "limit 2, offset 0", limit: 2, offset: 0, expectedCount: 2, }, { name: "limit 2, offset 1", limit: 2, offset: 1, expectedCount: 2, }, { name: "limit 2, offset 3", limit: 2, offset: 3, expectedCount: 2, }, { name: "limit 2, offset 4", limit: 2, offset: 4, expectedCount: 1, }, { name: "limit 3, offset 2", limit: 3, offset: 2, expectedCount: 3, }, { name: "limit 10, offset 3", limit: 10, offset: 3, expectedCount: 2, }, }
for _, tt := range tests { s.Run(tt.name, func() { branches, err := s.repo.Branches(&BranchesOptions{ Limit: tt.limit, Offset: tt.offset, }) require.NoError(s.T(), err) assert.Len(s.T(), branches, tt.expectedCount, "expected %d branches", tt.expectedCount) }) }}
func (s *BranchSuite) TestBranches_EmptyRepo() { repoPath := filepath.Join(s.tempDir, "empty-repo")
_, err := gogit.PlainInit(repoPath, false) require.NoError(s.T(), err)
gitRepo, err := PlainOpen(repoPath) require.NoError(s.T(), err)
branches, err := gitRepo.Branches(&BranchesOptions{}) require.NoError(s.T(), err)
if branches != nil { assert.Empty(s.T(), branches, "expected no branches in empty repo") }}
func (s *BranchSuite) TestBranches_Pagination() { s.setupRepoWithBranches()
allBranches, err := s.repo.Branches(&BranchesOptions{}) require.NoError(s.T(), err) assert.Len(s.T(), allBranches, 5, "expected 5 branches")
pageSize := 2 var paginatedBranches []string
for offset := 0; offset < len(allBranches); offset += pageSize { branches, err := s.repo.Branches(&BranchesOptions{ Limit: pageSize, Offset: offset, }) require.NoError(s.T(), err) for _, branch := range branches { paginatedBranches = append(paginatedBranches, branch.Reference.Name) } }
assert.Len(s.T(), paginatedBranches, len(allBranches), "pagination should return all branches")
// create sets to verify all branches are present allBranchNames := sets.New[string]() for _, branch := range allBranches { allBranchNames.Insert(branch.Reference.Name) }
paginatedBranchNames := sets.New[string]() for _, name := range paginatedBranches { paginatedBranchNames.Insert(name) }
assert.EqualValues(s.T(), allBranchNames, paginatedBranchNames, "pagination should return the same set of branches")}
func (s *BranchSuite) TestBranches_VerifyBranchFields() { s.setupRepoWithBranches()
branches, err := s.repo.Branches(&BranchesOptions{}) require.NoError(s.T(), err)
found := false for i := range branches { if branches[i].Reference.Name == "master" { found = true assert.Equal(s.T(), "master", branches[i].Reference.Name) assert.NotEmpty(s.T(), branches[i].Reference.Hash) assert.NotNil(s.T(), branches[i].Commit) assert.NotEmpty(s.T(), branches[i].Commit.Author.Name) assert.NotEmpty(s.T(), branches[i].Commit.Author.Email) assert.False(s.T(), branches[i].Commit.Hash.IsZero()) break } }
assert.True(s.T(), found, "master branch not found")}
func (s *BranchSuite) TestBranches_NilOptions() { s.setupRepoWithBranches()
branches, err := s.repo.Branches(nil) require.NoError(s.T(), err) assert.Len(s.T(), branches, 5, "nil options should return all branches")}
func (s *BranchSuite) TestBranches_ZeroLimitAndOffset() { s.setupRepoWithBranches()
branches, err := s.repo.Branches(&BranchesOptions{ Limit: 0, Offset: 0, }) require.NoError(s.T(), err) assert.Len(s.T(), branches, 5, "zero limit should return all branches")}