Fix required contexts and commit status matching bug (#34815)

Fix #34504

Since one required context can match more than one commit statuses, we
should not directly compare the lengths of `requiredCommitStatuses` and
`requiredContexts`

---------

Signed-off-by: Zettat123 <zettat123@gmail.com>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

services/pull/commit_status.go

@@ -38,20 +38,23 @@ func MergeRequiredContextsCommitStatus(commitStatuses []*git_model.CommitStatus,
 	}
 
 	requiredCommitStatuses := make([]*git_model.CommitStatus, 0, len(commitStatuses))
+	allRequiredContextsMatched := true
 	for _, gp := range requiredContextsGlob {
+		requiredContextMatched := false
 		for _, commitStatus := range commitStatuses {
 			if gp.Match(commitStatus.Context) {
 				requiredCommitStatuses = append(requiredCommitStatuses, commitStatus)
-				break
+				requiredContextMatched = true
 			}
 		}
+		allRequiredContextsMatched = allRequiredContextsMatched && requiredContextMatched
 	}
 	if len(requiredCommitStatuses) == 0 {
 		return commitstatus.CommitStatusPending
 	}
 
 	returnedStatus := git_model.CalcCommitStatus(requiredCommitStatuses).State
-	if len(requiredCommitStatuses) == len(requiredContexts) {
+	if allRequiredContextsMatched {
 		return returnedStatus
 	}
 

services/pull/commit_status_test.go

@@ -58,6 +58,15 @@ func TestMergeRequiredContextsCommitStatus(t *testing.T) {
 			requiredContexts: []string{"Build*", "Build 2t*"},
 			expected:         commitstatus.CommitStatusFailure,
 		},
+		{
+			commitStatuses: []*git_model.CommitStatus{
+				{Context: "Build 1", State: commitstatus.CommitStatusSuccess},
+				{Context: "Build 2", State: commitstatus.CommitStatusSuccess},
+				{Context: "Build 2t", State: commitstatus.CommitStatusFailure},
+			},
+			requiredContexts: []string{"Build*"},
+			expected:         commitstatus.CommitStatusFailure,
+		},
 		{
 			commitStatuses: []*git_model.CommitStatus{
 				{Context: "Build 1", State: commitstatus.CommitStatusSuccess},