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Fix PR nil-dereference bug (#2195)

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* Fix PR nil-dereference bug

* Revert to original error format
This commit is contained in:
Ethan Koenig 2017-07-26 00:16:45 -07:00 • committed by Lunny Xiao
parent dde0052ca2
commit 48898e5d0b
2 changed files with 91 additions and 7 deletions
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33
models/issue.go
View file

@ -148,6 +148,19 @@ func (issue *Issue) loadAssignee(e Engine) (err error) {
return
}
func (issue *Issue) loadPullRequest(e Engine) (err error) {
if issue.IsPull && issue.PullRequest == nil {
issue.PullRequest, err = getPullRequestByIssueID(e, issue.ID)
if err != nil {
if IsErrPullRequestNotExist(err) {
return err
}
return fmt.Errorf("getPullRequestByIssueID [%d]: %v", issue.ID, err)
}
}
return nil
}
func (issue *Issue) loadAttributes(e Engine) (err error) {
if err = issue.loadRepo(e); err != nil {
return
@ -172,12 +185,9 @@ func (issue *Issue) loadAttributes(e Engine) (err error) {
return
}
if issue.IsPull && issue.PullRequest == nil {
if err = issue.loadPullRequest(e); err != nil && !IsErrPullRequestNotExist(err) {
// It is possible pull request is not yet created.
issue.PullRequest, err = getPullRequestByIssueID(e, issue.ID)
if err != nil && !IsErrPullRequestNotExist(err) {
return fmt.Errorf("getPullRequestByIssueID [%d]: %v", issue.ID, err)
}
return err
}
if issue.Attachments == nil {
@ -321,8 +331,15 @@ func (issue *Issue) HasLabel(labelID int64) bool {
func (issue *Issue) sendLabelUpdatedWebhook(doer *User) {
var err error
if issue.IsPull {
err = issue.PullRequest.LoadIssue()
if err != nil {
if err = issue.loadRepo(x); err != nil {
log.Error(4, "loadRepo: %v", err)
return
}
if err = issue.loadPullRequest(x); err != nil {
log.Error(4, "loadPullRequest: %v", err)
return
}
if err = issue.PullRequest.LoadIssue(); err != nil {
log.Error(4, "LoadIssue: %v", err)
return
}
@ -430,6 +447,8 @@ func (issue *Issue) ClearLabels(doer *User) (err error) {
if err := issue.loadRepo(sess); err != nil {
return err
} else if err = issue.loadPullRequest(sess); err != nil {
return err
}
if has, err := hasAccess(sess, doer.ID, issue.Repo, AccessModeWrite); err != nil {

65
models/issue_test.go
View file

@ -81,3 +81,68 @@ func TestGetParticipantsByIssueID(t *testing.T) {
// Users 3 and 5 made actual comments (see fixtures/comment.yml)
checkParticipants(1, []int{3, 5})
}
func TestIssue_AddLabel(t *testing.T) {
var tests = []struct {
issueID int64
labelID int64
doerID int64
}{
{1, 2, 2}, // non-pull-request, not-already-added label
{1, 1, 2}, // non-pull-request, already-added label
{2, 2, 2}, // pull-request, not-already-added label
{2, 1, 2}, // pull-request, already-added label
}
for _, test := range tests {
assert.NoError(t, PrepareTestDatabase())
issue := AssertExistsAndLoadBean(t, &Issue{ID: test.issueID}).(*Issue)
label := AssertExistsAndLoadBean(t, &Label{ID: test.labelID}).(*Label)
doer := AssertExistsAndLoadBean(t, &User{ID: test.doerID}).(*User)
assert.NoError(t, issue.AddLabel(doer, label))
AssertExistsAndLoadBean(t, &IssueLabel{IssueID: test.issueID, LabelID: test.labelID})
}
}
func TestIssue_AddLabels(t *testing.T) {
var tests = []struct {
issueID int64
labelIDs []int64
doerID int64
}{
{1, []int64{1, 2}, 2}, // non-pull-request
{1, []int64{}, 2}, // non-pull-request, empty
{2, []int64{1, 2}, 2}, // pull-request
{2, []int64{}, 1}, // pull-request, empty
}
for _, test := range tests {
assert.NoError(t, PrepareTestDatabase())
issue := AssertExistsAndLoadBean(t, &Issue{ID: test.issueID}).(*Issue)
labels := make([]*Label, len(test.labelIDs))
for i, labelID := range test.labelIDs {
labels[i] = AssertExistsAndLoadBean(t, &Label{ID: labelID}).(*Label)
}
doer := AssertExistsAndLoadBean(t, &User{ID: test.doerID}).(*User)
assert.NoError(t, issue.AddLabels(doer, labels))
for _, labelID := range test.labelIDs {
AssertExistsAndLoadBean(t, &IssueLabel{IssueID: test.issueID, LabelID: labelID})
}
}
}
func TestIssue_ClearLabels(t *testing.T) {
var tests = []struct {
issueID int64
doerID int64
}{
{1, 2}, // non-pull-request, has labels
{2, 2}, // pull-request, has labels
{3, 2}, // pull-request, has no labels
}
for _, test := range tests {
assert.NoError(t, PrepareTestDatabase())
issue := AssertExistsAndLoadBean(t, &Issue{ID: test.issueID}).(*Issue)
doer := AssertExistsAndLoadBean(t, &User{ID: test.doerID}).(*User)
assert.NoError(t, issue.ClearLabels(doer))
AssertNotExistsBean(t, &IssueLabel{IssueID: test.issueID})
}
}