From bad7672dccc4a747d00cddd303f5f6dbbc734159 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Slav=20Pidgorny=20=F0=9F=87=BA=F0=9F=87=A6?= <sp@anz.com>
Date: Mon, 18 May 2026 10:20:57 +1000
Subject: [PATCH 1/2] ADD GetParentIssue function

---
 github/sub_issue.go | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/github/sub_issue.go b/github/sub_issue.go
index ae966dade19..f56980f89a3 100644
--- a/github/sub_issue.go
+++ b/github/sub_issue.go
@@ -138,3 +138,24 @@ func (s *SubIssueService) Reprioritize(ctx context.Context, owner, repo string,
 
 	return si, resp, nil
 }
+
+// GetParentIssue gets the parent issue of a sub-issue.
+//
+// GitHub API docs: https://docs.github.com/rest/issues/sub-issues?apiVersion=2022-11-28#get-parent-issue
+//
+//meta:operation GET /repos/{owner}/{repo}/issues/{issue_number}/parent
+func (s *SubIssueService) GetParentIssue(ctx context.Context, owner, repo string, subIssueNumber int64) (*Issue, *Response, error) {
+	u := fmt.Sprintf("repos/%v/%v/issues/%v/parent", owner, repo, subIssueNumber)
+	req, err := s.client.NewRequest(ctx, "GET", u, nil)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	var parentIssue *Issue
+	resp, err := s.client.Do(req, &parentIssue)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return parentIssue, resp, nil
+}

From 76ba22113b9d6e483994527291bed470b74ee41c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Slav=20Pidgorny=20=F0=9F=87=BA=F0=9F=87=A6?= <sp@anz.com>
Date: Mon, 18 May 2026 10:44:33 +1000
Subject: [PATCH 2/2] =?UTF-8?q?ADD=20test=20for=20GetParentIssue=20It's=20?=
 =?UTF-8?q?a=20simple=20function,=20but=20need=20to=20maintain=20test=20co?=
 =?UTF-8?q?verage.=20I=20usually=20start=20with=20tests,=20but=20not=20thi?=
 =?UTF-8?q?s=20time=20=F0=9F=98=B3?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 github/sub_issue_test.go | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/github/sub_issue_test.go b/github/sub_issue_test.go
index fd3c2784f52..faeea077d6e 100644
--- a/github/sub_issue_test.go
+++ b/github/sub_issue_test.go
@@ -156,3 +156,33 @@ func TestSubIssuesService_Reprioritize(t *testing.T) {
 		return resp, err
 	})
 }
+
+func TestSubIssuesService_GetParentIssue(t *testing.T) {
+	t.Parallel()
+	client, mux, _ := setup(t)
+
+	mux.HandleFunc("/repos/o/r/issues/42/parent", func(w http.ResponseWriter, r *http.Request) {
+		testMethod(t, r, "GET")
+		fmt.Fprint(w, `{"id":1, "number":1}`)
+	})
+
+	ctx := t.Context()
+	got, _, err := client.SubIssue.GetParentIssue(ctx, "o", "r", 42)
+	if err != nil {
+		t.Errorf("SubIssues.GetParentIssue returned error: %v", err)
+	}
+
+	want := &Issue{Number: Ptr(1), ID: Ptr(int64(1))}
+	if !cmp.Equal(got, want) {
+		t.Errorf("SubIssues.GetParentIssue = %+v, want %+v", got, want)
+	}
+
+	const methodName = "GetParentIssue"
+	testNewRequestAndDoFailure(t, methodName, client, func() (*Response, error) {
+		got, resp, err := client.SubIssue.GetParentIssue(ctx, "o", "r", 42)
+		if got != nil {
+			t.Errorf("testNewRequestAndDoFailure %v = %#v, want nil", methodName, got)
+		}
+		return resp, err
+	})
+}