1 files changed, 295 insertions, 0 deletions
diff --git a/bridge/gitlab/export_test.go b/bridge/gitlab/export_test.go
index 4d4b35af..02e06efd 100644
--- a/bridge/gitlab/export_test.go
+++ b/bridge/gitlab/export_test.go
@@ -1 +1,296 @@
 package gitlab
+
+import (
+	"context"
+	"fmt"
+	"math/rand"
+	"os"
+	"strconv"
+	"testing"
+	"time"
+
+	"github.com/xanzy/go-gitlab"
+
+	"github.com/stretchr/testify/require"
+
+	"github.com/MichaelMure/git-bug/bridge/core"
+	"github.com/MichaelMure/git-bug/bug"
+	"github.com/MichaelMure/git-bug/cache"
+	"github.com/MichaelMure/git-bug/repository"
+	"github.com/MichaelMure/git-bug/util/interrupt"
+)
+
+const (
+	testRepoBaseName = "git-bug-test-gitlab-exporter"
+)
+
+type testCase struct {
+	name     string
+	bug      *cache.BugCache
+	numOp    int // number of original operations
+	numOpExp int // number of operations after export
+	numOpImp int // number of operations after import
+}
+
+func testCases(t *testing.T, repo *cache.RepoCache, identity *cache.IdentityCache) []*testCase {
+	// simple bug
+	simpleBug, _, err := repo.NewBug("simple bug", "new bug")
+	require.NoError(t, err)
+
+	// bug with comments
+	bugWithComments, _, err := repo.NewBug("bug with comments", "new bug")
+	require.NoError(t, err)
+
+	_, err = bugWithComments.AddComment("new comment")
+	require.NoError(t, err)
+
+	// bug with label changes
+	bugLabelChange, _, err := repo.NewBug("bug label change", "new bug")
+	require.NoError(t, err)
+
+	_, _, err = bugLabelChange.ChangeLabels([]string{"bug"}, nil)
+	require.NoError(t, err)
+
+	_, _, err = bugLabelChange.ChangeLabels([]string{"core"}, nil)
+	require.NoError(t, err)
+
+	_, _, err = bugLabelChange.ChangeLabels(nil, []string{"bug"})
+	require.NoError(t, err)
+
+	// bug with comments editions
+	bugWithCommentEditions, createOp, err := repo.NewBug("bug with comments editions", "new bug")
+	require.NoError(t, err)
+
+	_, err = bugWithCommentEditions.EditComment(createOp.Id(), "first comment edited")
+	require.NoError(t, err)
+
+	commentOp, err := bugWithCommentEditions.AddComment("first comment")
+	require.NoError(t, err)
+
+	_, err = bugWithCommentEditions.EditComment(commentOp.Id(), "first comment edited")
+	require.NoError(t, err)
+
+	// bug status changed
+	bugStatusChanged, _, err := repo.NewBug("bug status changed", "new bug")
+	require.NoError(t, err)
+
+	_, err = bugStatusChanged.Close()
+	require.NoError(t, err)
+
+	_, err = bugStatusChanged.Open()
+	require.NoError(t, err)
+
+	// bug title changed
+	bugTitleEdited, _, err := repo.NewBug("bug title edited", "new bug")
+	require.NoError(t, err)
+
+	_, err = bugTitleEdited.SetTitle("bug title edited again")
+	require.NoError(t, err)
+
+	return []*testCase{
+		&testCase{
+			name:     "simple bug",
+			bug:      simpleBug,
+			numOp:    1,
+			numOpExp: 2,
+			numOpImp: 1,
+		},
+		&testCase{
+			name:     "bug with comments",
+			bug:      bugWithComments,
+			numOp:    2,
+			numOpExp: 4,
+			numOpImp: 2,
+		},
+		&testCase{
+			name:     "bug label change",
+			bug:      bugLabelChange,
+			numOp:    4,
+			numOpExp: 8,
+			numOpImp: 4,
+		},
+		&testCase{
+			name:     "bug with comment editions",
+			bug:      bugWithCommentEditions,
+			numOp:    4,
+			numOpExp: 8,
+			numOpImp: 2,
+		},
+		&testCase{
+			name:     "bug changed status",
+			bug:      bugStatusChanged,
+			numOp:    3,
+			numOpExp: 6,
+			numOpImp: 3,
+		},
+		&testCase{
+			name:     "bug title edited",
+			bug:      bugTitleEdited,
+			numOp:    2,
+			numOpExp: 4,
+			numOpImp: 2,
+		},
+	}
+}
+
+func TestPushPull(t *testing.T) {
+	// token must have 'repo' and 'delete_repo' scopes
+	token := os.Getenv("GITLAB_API_TOKEN")
+	if token == "" {
+		t.Skip("Env var GITLAB_API_TOKEN missing")
+	}
+
+	// create repo backend
+	repo := repository.CreateTestRepo(false)
+	defer repository.CleanupTestRepos(t, repo)
+
+	backend, err := cache.NewRepoCache(repo)
+	require.NoError(t, err)
+
+	// set author identity
+	author, err := backend.NewIdentity("test identity", "test@test.org")
+	require.NoError(t, err)
+
+	err = backend.SetUserIdentity(author)
+	require.NoError(t, err)
+
+	defer backend.Close()
+	interrupt.RegisterCleaner(backend.Close)
+
+	tests := testCases(t, backend, author)
+
+	// generate project name
+	projectName := generateRepoName()
+
+	// create target Gitlab repository
+	projectID, err := createRepository(context.TODO(), projectName, token)
+	require.NoError(t, err)
+
+	fmt.Println("created repository", projectName)
+
+	// Make sure to remove the Gitlab repository when the test end
+	defer func(t *testing.T) {
+		if err := deleteRepository(context.TODO(), projectID, token); err != nil {
+			t.Fatal(err)
+		}
+		fmt.Println("deleted repository:", projectName)
+	}(t)
+
+	interrupt.RegisterCleaner(func() error {
+		return deleteRepository(context.TODO(), projectID, token)
+	})
+
+	// initialize exporter
+	exporter := &gitlabExporter{}
+	err = exporter.Init(core.Configuration{
+		keyProjectID: strconv.Itoa(projectID),
+		keyToken:     token,
+	})
+	require.NoError(t, err)
+
+	ctx := context.Background()
+	start := time.Now()
+
+	// export all bugs
+	exportEvents, err := exporter.ExportAll(ctx, backend, time.Time{})
+	require.NoError(t, err)
+
+	for result := range exportEvents {
+		require.NoError(t, result.Err)
+	}
+	require.NoError(t, err)
+
+	fmt.Printf("test repository exported in %f seconds\n", time.Since(start).Seconds())
+
+	repoTwo := repository.CreateTestRepo(false)
+	defer repository.CleanupTestRepos(t, repoTwo)
+
+	// create a second backend
+	backendTwo, err := cache.NewRepoCache(repoTwo)
+	require.NoError(t, err)
+
+	importer := &gitlabImporter{}
+	err = importer.Init(core.Configuration{
+		keyProjectID: strconv.Itoa(projectID),
+		keyToken:     token,
+	})
+	require.NoError(t, err)
+
+	// import all exported bugs to the second backend
+	importEvents, err := importer.ImportAll(ctx, backendTwo, time.Time{})
+	require.NoError(t, err)
+
+	for result := range importEvents {
+		require.NoError(t, result.Err)
+	}
+
+	require.Len(t, backendTwo.AllBugsIds(), len(tests))
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			// for each operation a SetMetadataOperation will be added
+			// so number of operations should double
+			require.Len(t, tt.bug.Snapshot().Operations, tt.numOpExp)
+
+			// verify operation have correct metadata
+			for _, op := range tt.bug.Snapshot().Operations {
+				// Check if the originals operations (*not* SetMetadata) are tagged properly
+				if _, ok := op.(*bug.SetMetadataOperation); !ok {
+					_, haveIDMetadata := op.GetMetadata(keyGitlabId)
+					require.True(t, haveIDMetadata)
+
+					_, haveURLMetada := op.GetMetadata(keyGitlabUrl)
+					require.True(t, haveURLMetada)
+				}
+			}
+
+			// get bug gitlab ID
+			bugGitlabID, ok := tt.bug.Snapshot().GetCreateMetadata(keyGitlabId)
+			require.True(t, ok)
+
+			// retrieve bug from backendTwo
+			importedBug, err := backendTwo.ResolveBugCreateMetadata(keyGitlabId, bugGitlabID)
+			require.NoError(t, err)
+
+			// verify bug have same number of original operations
+			require.Len(t, importedBug.Snapshot().Operations, tt.numOpImp)
+
+			// verify bugs are taged with origin=gitlab
+			issueOrigin, ok := importedBug.Snapshot().GetCreateMetadata(core.KeyOrigin)
+			require.True(t, ok)
+			require.Equal(t, issueOrigin, target)
+
+			//TODO: maybe more tests to ensure bug final state
+		})
+	}
+}
+
+func generateRepoName() string {
+	rand.Seed(time.Now().UnixNano())
+	var letterRunes = []rune("abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ")
+	b := make([]rune, 8)
+	for i := range b {
+		b[i] = letterRunes[rand.Intn(len(letterRunes))]
+	}
+	return fmt.Sprintf("%s-%s", testRepoBaseName, string(b))
+}
+
+// create repository need a token with scope 'repo'
+func createRepository(ctx context.Context, name, token string) (int, error) {
+	client := buildClient(token)
+	project, _, err := client.Projects.CreateProject(
+		&gitlab.CreateProjectOptions{
+			Name: gitlab.String(name),
+		},
+		gitlab.WithContext(ctx),
+	)
+
+	return project.ID, err
+}
+
+// delete repository need a token with scope 'delete_repo'
+func deleteRepository(ctx context.Context, project int, token string) error {
+	client := buildClient(token)
+	_, err := client.Projects.DeleteProject(project, gitlab.WithContext(ctx))
+	return err
+}