diff options
Diffstat (limited to 'utils/difftree/difftree_test.go')
-rw-r--r-- | utils/difftree/difftree_test.go | 401 |
1 files changed, 401 insertions, 0 deletions
diff --git a/utils/difftree/difftree_test.go b/utils/difftree/difftree_test.go new file mode 100644 index 0000000..df8fe4c --- /dev/null +++ b/utils/difftree/difftree_test.go @@ -0,0 +1,401 @@ +package difftree + +import ( + "os" + "sort" + "testing" + + "gopkg.in/src-d/go-git.v3" + "gopkg.in/src-d/go-git.v3/core" + "gopkg.in/src-d/go-git.v3/formats/packfile" + + . "gopkg.in/check.v1" +) + +func Test(t *testing.T) { TestingT(t) } + +type DiffTreeSuite struct { + repos map[string]*git.Repository +} + +var _ = Suite(&DiffTreeSuite{}) + +func (s *DiffTreeSuite) SetUpSuite(c *C) { + fixtureRepos := [...]struct { + url string + packfile string + }{ + {"git://github.com/github/gem-builder.git", + "fixtures/pack-1ea0b3971fd64fdcdf3282bfb58e8cf10095e4e6.pack"}, + {"git://github.com/githubtraining/example-branches.git", + "fixtures/pack-bb8ee94710d3fa39379a630f76812c187217b312.pack"}, + {"git://github.com/rumpkernel/rumprun-xen.git", + "fixtures/pack-7861f2632868833a35fe5e4ab94f99638ec5129b.pack"}, + {"git://github.com/mcuadros/skeetr.git", + "fixtures/pack-36ef7a2296bfd526020340d27c5e1faa805d8d38.pack"}, + {"git://github.com/dezfowler/LiteMock.git", + "fixtures/pack-0d9b6cfc261785837939aaede5986d7a7c212518.pack"}, + {"git://github.com/tyba/storable.git", + "fixtures/pack-0d3d824fb5c930e7e7e1f0f399f2976847d31fd3.pack"}, + {"git://github.com/toqueteos/ts3.git", + "fixtures/pack-21b33a26eb7ffbd35261149fe5d886b9debab7cb.pack"}, + } + + s.repos = make(map[string]*git.Repository, 0) + for _, fixRepo := range fixtureRepos { + s.repos[fixRepo.url] = git.NewPlainRepository() + + f, err := os.Open(fixRepo.packfile) + c.Assert(err, IsNil) + + r := packfile.NewSeekable(f) + d := packfile.NewDecoder(r) + err = d.Decode(s.repos[fixRepo.url].Storage) + c.Assert(err, IsNil) + + c.Assert(f.Close(), IsNil) + } +} + +func equalChanges(a, b Changes) bool { + if a == nil && b == nil { + return true + } + + if a == nil || b == nil { + return false + } + + if len(a) != len(b) { + return false + } + + sort.Sort(a) + sort.Sort(b) + + for i, va := range a { + vb := b[i] + if va.Action != vb.Action || + va.File.Name != vb.File.Name || + va.File.Size != vb.File.Size { + return false + } + } + + return true +} + +func (s *DiffTreeSuite) TestActionString(c *C) { + expected := "Insert" + action := Insert + obtained := action.String() + c.Assert(obtained, Equals, expected) + + expected = "Delete" + action = Delete + obtained = action.String() + c.Assert(obtained, Equals, expected) + + expected = "Modify" + action = Modify + obtained = action.String() + c.Assert(obtained, Equals, expected) + + action = 37 + c.Assert(func() { action.String() }, + PanicMatches, "unsupported action: 37") +} + +func (s *DiffTreeSuite) TestChangeString(c *C) { + expected := "<Action: Insert, Path: bla, Size: 12>" + change := &Change{ + Action: Insert, + File: &git.File{Name: "bla", Blob: git.Blob{Size: 12}}, + } + obtained := change.String() + c.Assert(obtained, Equals, expected) + + expected = "<Action: Delete, Path: bla, Size: 12>" + change = &Change{ + Action: Delete, + File: &git.File{Name: "bla", Blob: git.Blob{Size: 12}}, + } + obtained = change.String() + c.Assert(obtained, Equals, expected) + + expected = "<Action: Modify, Path: bla, Size: 12>" + change = &Change{ + Action: Modify, + File: &git.File{Name: "bla", Blob: git.Blob{Size: 12}}, + } + obtained = change.String() + c.Assert(obtained, Equals, expected) +} + +func (s *DiffTreeSuite) TestChangesString(c *C) { + expected := "[]" + changes := newEmpty() + obtained := changes.String() + c.Assert(obtained, Equals, expected) + + expected = "[<Action: Modify, Path: bla, Size: 12>]" + changes = make([]*Change, 1) + changes[0] = &Change{Action: Modify, File: &git.File{Name: "bla", Blob: git.Blob{Size: 12}}} + obtained = changes.String() + c.Assert(obtained, Equals, expected) + + expected = "[<Action: Modify, Path: bla, Size: 12>, <Action: Insert, Path: foo/bar, Size: 124>]" + changes = make([]*Change, 2) + changes[0] = &Change{Action: Modify, File: &git.File{Name: "bla", Blob: git.Blob{Size: 12}}} + changes[1] = &Change{Action: Insert, File: &git.File{Name: "foo/bar", Blob: git.Blob{Size: 124}}} + obtained = changes.String() + c.Assert(obtained, Equals, expected) +} + +func (s *DiffTreeSuite) TestNew(c *C) { + for i, t := range []struct { + repo string // the repo name as in localRepos + commit1 string // the commit of the first tree + commit2 string // the commit of the second tree + expected Changes // the expected list of changes + }{ + { + "git://github.com/dezfowler/LiteMock.git", + "", + "", + Changes{}, + }, + { + "git://github.com/dezfowler/LiteMock.git", + "b7965eaa2c4f245d07191fe0bcfe86da032d672a", + "b7965eaa2c4f245d07191fe0bcfe86da032d672a", + Changes{}, + }, + { + "git://github.com/dezfowler/LiteMock.git", + "", + "b7965eaa2c4f245d07191fe0bcfe86da032d672a", + Changes{ + {Action: Insert, File: &git.File{Name: "README", Blob: git.Blob{Size: 0}}}, + }, + }, + { + "git://github.com/dezfowler/LiteMock.git", + "b7965eaa2c4f245d07191fe0bcfe86da032d672a", + "", + Changes{ + {Action: Delete, File: &git.File{Name: "README", Blob: git.Blob{Size: 0}}}, + }, + }, + { + "git://github.com/githubtraining/example-branches.git", + "", + "f0eb272cc8f77803478c6748103a1450aa1abd37", + Changes{ + {Action: Insert, File: &git.File{Name: "README.md", Blob: git.Blob{Size: 359}}}, + }, + }, + { + "git://github.com/githubtraining/example-branches.git", + "f0eb272cc8f77803478c6748103a1450aa1abd37", + "", + Changes{ + {Action: Delete, File: &git.File{Name: "README.md", Blob: git.Blob{Size: 359}}}, + }, + }, + { + "git://github.com/githubtraining/example-branches.git", + "f0eb272cc8f77803478c6748103a1450aa1abd37", + "f0eb272cc8f77803478c6748103a1450aa1abd37", + Changes{}, + }, + { + "git://github.com/github/gem-builder.git", + "", + "9608eed92b3839b06ebf72d5043da547de10ce85", + Changes{ + {Action: Insert, File: &git.File{Name: "README", Blob: git.Blob{Size: 1176}}}, + {Action: Insert, File: &git.File{Name: "gem_builder.rb", Blob: git.Blob{Size: 1956}}}, + {Action: Insert, File: &git.File{Name: "gem_eval.rb", Blob: git.Blob{Size: 687}}}, + }, + }, + { + "git://github.com/github/gem-builder.git", + "9608eed92b3839b06ebf72d5043da547de10ce85", + "", + Changes{ + {Action: Delete, File: &git.File{Name: "README", Blob: git.Blob{Size: 1176}}}, + {Action: Delete, File: &git.File{Name: "gem_builder.rb", Blob: git.Blob{Size: 1956}}}, + {Action: Delete, File: &git.File{Name: "gem_eval.rb", Blob: git.Blob{Size: 687}}}, + }, + }, + { + "git://github.com/github/gem-builder.git", + "9608eed92b3839b06ebf72d5043da547de10ce85", + "9608eed92b3839b06ebf72d5043da547de10ce85", + Changes{}, + }, + { + "git://github.com/toqueteos/ts3.git", + "", + "764e914b75d6d6df1fc5d832aa9840f590abf1bb", + Changes{ + {Action: Insert, File: &git.File{Name: "examples/bot.go", Blob: git.Blob{Size: 287}}}, + {Action: Insert, File: &git.File{Name: "examples/raw_shell.go", Blob: git.Blob{Size: 1269}}}, + {Action: Insert, File: &git.File{Name: "helpers.go", Blob: git.Blob{Size: 782}}}, + {Action: Insert, File: &git.File{Name: "README.markdown", Blob: git.Blob{Size: 34}}}, + {Action: Insert, File: &git.File{Name: "ts3.go", Blob: git.Blob{Size: 4251}}}, + }, + }, + { + "git://github.com/toqueteos/ts3.git", + "764e914b75d6d6df1fc5d832aa9840f590abf1bb", + "", + Changes{ + {Action: Delete, File: &git.File{Name: "examples/bot.go", Blob: git.Blob{Size: 287}}}, + {Action: Delete, File: &git.File{Name: "examples/raw_shell.go", Blob: git.Blob{Size: 1269}}}, + {Action: Delete, File: &git.File{Name: "helpers.go", Blob: git.Blob{Size: 782}}}, + {Action: Delete, File: &git.File{Name: "README.markdown", Blob: git.Blob{Size: 34}}}, + {Action: Delete, File: &git.File{Name: "ts3.go", Blob: git.Blob{Size: 4251}}}, + }, + }, + { + "git://github.com/toqueteos/ts3.git", + "764e914b75d6d6df1fc5d832aa9840f590abf1bb", + "764e914b75d6d6df1fc5d832aa9840f590abf1bb", + Changes{}, + }, + { + "git://github.com/github/gem-builder.git", + "9608eed92b3839b06ebf72d5043da547de10ce85", + "6c41e05a17e19805879689414026eb4e279f7de0", + Changes{ + {Action: Modify, File: &git.File{Name: "gem_eval.rb", Blob: git.Blob{Size: 1828}}}, + }, + }, + { + "git://github.com/github/gem-builder.git", + "6c41e05a17e19805879689414026eb4e279f7de0", + "89be3aac2f178719c12953cc9eaa23441f8d9371", + Changes{ + {Action: Modify, File: &git.File{Name: "gem_eval.rb", Blob: git.Blob{Size: 1247}}}, + {Action: Insert, File: &git.File{Name: "gem_eval_test.rb", Blob: git.Blob{Size: 2245}}}, + {Action: Insert, File: &git.File{Name: "security.rb", Blob: git.Blob{Size: 1361}}}, + {Action: Insert, File: &git.File{Name: "security_test.rb", Blob: git.Blob{Size: 875}}}, + }, + }, + { + "git://github.com/github/gem-builder.git", + "89be3aac2f178719c12953cc9eaa23441f8d9371", + "597240b7da22d03ad555328f15abc480b820acc0", + Changes{ + {Action: Modify, File: &git.File{Name: "gem_eval.rb", Blob: git.Blob{Size: 1221}}}, + }, + }, + { + "git://github.com/github/gem-builder.git", + "597240b7da22d03ad555328f15abc480b820acc0", + "0260380e375d2dd0e1a8fcab15f91ce56dbe778e", + Changes{ + {Action: Modify, File: &git.File{Name: "gem_eval.rb", Blob: git.Blob{Size: 1794}}}, + {Action: Modify, File: &git.File{Name: "gem_eval_test.rb", Blob: git.Blob{Size: 4220}}}, + {Action: Insert, File: &git.File{Name: "lazy_dir.rb", Blob: git.Blob{Size: 695}}}, + {Action: Insert, File: &git.File{Name: "lazy_dir_test.rb", Blob: git.Blob{Size: 1276}}}, + {Action: Modify, File: &git.File{Name: "security.rb", Blob: git.Blob{Size: 2134}}}, + {Action: Modify, File: &git.File{Name: "security_test.rb", Blob: git.Blob{Size: 1184}}}, + }, + }, + { + "git://github.com/github/gem-builder.git", + "0260380e375d2dd0e1a8fcab15f91ce56dbe778e", + "597240b7da22d03ad555328f15abc480b820acc0", + Changes{ + {Action: Modify, File: &git.File{Name: "gem_eval.rb", Blob: git.Blob{Size: 1221}}}, + {Action: Modify, File: &git.File{Name: "gem_eval_test.rb", Blob: git.Blob{Size: 2245}}}, + {Action: Delete, File: &git.File{Name: "lazy_dir.rb", Blob: git.Blob{Size: 695}}}, + {Action: Delete, File: &git.File{Name: "lazy_dir_test.rb", Blob: git.Blob{Size: 1276}}}, + {Action: Modify, File: &git.File{Name: "security.rb", Blob: git.Blob{Size: 1361}}}, + {Action: Modify, File: &git.File{Name: "security_test.rb", Blob: git.Blob{Size: 875}}}, + }, + }, + { + "git://github.com/github/gem-builder.git", + "0260380e375d2dd0e1a8fcab15f91ce56dbe778e", + "ca9fd470bacb6262eb4ca23ee48bb2f43711c1ff", + Changes{ + {Action: Modify, File: &git.File{Name: "gem_eval.rb", Blob: git.Blob{Size: 1768}}}, + {Action: Modify, File: &git.File{Name: "security.rb", Blob: git.Blob{Size: 2092}}}, + {Action: Modify, File: &git.File{Name: "security_test.rb", Blob: git.Blob{Size: 1180}}}, + }, + }, + { + "git://github.com/github/gem-builder.git", + "fe3c86745f887c23a0d38c85cfd87ca957312f86", + "b7e3f636febf7a0cd3ab473b6d30081786d2c5b6", + Changes{ + {Action: Modify, File: &git.File{Name: "gem_eval.rb", Blob: git.Blob{Size: 1696}}}, + {Action: Modify, File: &git.File{Name: "gem_eval_test.rb", Blob: git.Blob{Size: 4622}}}, + {Action: Insert, File: &git.File{Name: "git_mock", Blob: git.Blob{Size: 45}}}, + {Action: Modify, File: &git.File{Name: "lazy_dir.rb", Blob: git.Blob{Size: 921}}}, + {Action: Modify, File: &git.File{Name: "lazy_dir_test.rb", Blob: git.Blob{Size: 1617}}}, + {Action: Modify, File: &git.File{Name: "security.rb", Blob: git.Blob{Size: 2179}}}, + }, + }, + { + "git://github.com/rumpkernel/rumprun-xen.git", + "1831e47b0c6db750714cd0e4be97b5af17fb1eb0", + "51d8515578ea0c88cc8fc1a057903675cf1fc16c", + Changes{ + {Action: Modify, File: &git.File{Name: "Makefile", Blob: git.Blob{Size: 4166}}}, + {Action: Modify, File: &git.File{Name: "netbsd_init.c", Blob: git.Blob{Size: 953}}}, + {Action: Modify, File: &git.File{Name: "rumphyper_stubs.c", Blob: git.Blob{Size: 766}}}, + {Action: Delete, File: &git.File{Name: "sysproxy.c", Blob: git.Blob{Size: 47101}}}, + }, + }, + { + "git://github.com/rumpkernel/rumprun-xen.git", + "1831e47b0c6db750714cd0e4be97b5af17fb1eb0", + "e13e678f7ee9badd01b120889e0ec5fdc8ae3802", + Changes{ + {Action: Modify, File: &git.File{Name: "app-tools/rumprun", Blob: git.Blob{Size: 6492}}}, + }, + }, + } { + repo, ok := s.repos[t.repo] + c.Assert(ok, Equals, true, + Commentf("subtest %d: repo %s not found", i, t.repo)) + + tree1, err := tree(repo, t.commit1) + c.Assert(err, IsNil, + Commentf("subtest %d: unable to retrieve tree from commit %s and repo %s: %s", i, t.commit1, t.repo, err)) + + var tree2 *git.Tree + if t.commit1 == t.commit2 { + tree2 = tree1 + } else { + tree2, err = tree(repo, t.commit2) + c.Assert(err, IsNil, + Commentf("subtest %d: unable to retrieve tree from commit %s and repo %s", i, t.commit2, t.repo, err)) + } + + obtained, err := New(tree1, tree2) + c.Assert(err, IsNil, + Commentf("subtest %d: unable to calculate difftree: %s", i, err)) + c.Assert(equalChanges(obtained, t.expected), Equals, true, + Commentf("subtest:%d\nrepo=%s\ncommit1=%s\ncommit2=%s\nexpected=%s\nobtained=%s", + i, t.repo, t.commit1, t.commit2, t.expected, obtained)) + } +} + +func tree(repo *git.Repository, commitHashStr string) (*git.Tree, error) { + if commitHashStr == "" { + return nil, nil + } + + commit, err := repo.Commit(core.NewHash(commitHashStr)) + if err != nil { + return nil, err + } + + return commit.Tree(), nil +} |