From be121d58c3d5a22b3c120904a21eb67af3bc1604 Mon Sep 17 00:00:00 2001
From: Giulio Chessa <giulio.chessa@eni.com>
Date: Wed, 26 Jul 2023 16:55:42 +0200
Subject: [PATCH] getting a single epic board of a group

---
 group_epic_boards.go      |  25 +++++++
 group_epic_boards_test.go | 133 ++++++++++++++++++++++++++++++++++++++
 2 files changed, 158 insertions(+)

diff --git a/group_epic_boards.go b/group_epic_boards.go
index d951fa8f1..fd8cfd86d 100644
--- a/group_epic_boards.go
+++ b/group_epic_boards.go
@@ -77,3 +77,28 @@ func (s *GroupEpicBoardsService) ListGroupEpicBoards(gid interface{}, opt *ListG
 
 	return gs, resp, nil
 }
+
+// GetGroupEpicBoard gets a single epic board of a group.
+//
+// GitLab API docs:
+// https://docs.gitlab.com/ee/api/group_epic_boards.html#single-group-epic-board
+func (s *GroupEpicBoardsService) GetGroupEpicBoard(gid interface{}, board int, options ...RequestOptionFunc) (*GroupEpicBoard, *Response, error) {
+	group, err := parseID(gid)
+	if err != nil {
+		return nil, nil, err
+	}
+	u := fmt.Sprintf("groups/%s/epic_boards/%d", PathEscape(group), board)
+
+	req, err := s.client.NewRequest(http.MethodGet, u, nil, options)
+	if err != nil {
+		return nil, nil, err
+	}
+
+	gib := new(GroupEpicBoard)
+	resp, err := s.client.Do(req, gib)
+	if err != nil {
+		return nil, resp, err
+	}
+
+	return gib, resp, nil
+}
diff --git a/group_epic_boards_test.go b/group_epic_boards_test.go
index ebced7b0a..680558e1d 100644
--- a/group_epic_boards_test.go
+++ b/group_epic_boards_test.go
@@ -144,3 +144,136 @@ func TestGroupEpicBoardsService_ListGroupEpicBoards(t *testing.T) {
 	require.Nil(t, gibs)
 	require.Equal(t, http.StatusNotFound, resp.StatusCode)
 }
+
+func TestGroupEpicBoardsService_GetGroupEpicBoard(t *testing.T) {
+	mux, client := setup(t)
+
+	mux.HandleFunc("/api/v4/groups/5/epic_boards/1", func(w http.ResponseWriter, r *http.Request) {
+		testMethod(t, r, http.MethodGet)
+		fmt.Fprintf(w, `
+		{
+			"id": 1,
+			"name": "group epic board",
+			"group": {
+			  "id": 5,
+			  "name": "Documentcloud",
+			  "web_url": "http://example.com/groups/documentcloud"
+			},
+			"labels": [
+			  {
+				"id": 1,
+				"name": "Board Label",
+				"color": "#c21e56",
+				"group_id": 5,
+				"description": "label applied to the epic board"
+			  }
+			],
+			"lists" : [
+			  {
+				"id" : 1,
+				"label" : {
+				  "id": 69,
+				  "name" : "Testing",
+				  "color" : "#F0AD4E",
+				  "description" : null
+				},
+				"position" : 1,
+				"list_type": "label"
+			  },
+			  {
+				"id" : 2,
+				"label" : {
+				  "id": 70,
+				  "name" : "Ready",
+				  "color" : "#FF0000",
+				  "description" : null
+				},
+				"position" : 2,
+				"list_type": "label"
+			  },
+			  {
+				"id" : 3,
+				"label" : {
+				  "id": 71,
+				  "name" : "Production",
+				  "color" : "#FF5F00",
+				  "description" : null
+				},
+				"position" : 3,
+				"list_type": "label"
+			  }
+			]
+		  }		
+		`)
+	})
+
+	want := &GroupEpicBoard{
+		ID:   1,
+		Name: "group epic board",
+		Group: &Group{
+			ID:     5,
+			Name:   "Documentcloud",
+			WebURL: "http://example.com/groups/documentcloud",
+		},
+		Labels: []*LabelDetails{
+			{
+				ID:          1,
+				Name:        "Board Label",
+				Color:       "#c21e56",
+				Description: "label applied to the epic board",
+			},
+		},
+		Lists: []*BoardList{
+			{
+				ID: 1,
+				Label: &Label{
+					ID:          69,
+					Name:        "Testing",
+					Color:       "#F0AD4E",
+					Description: "",
+				},
+				Position: 1,
+			},
+			{
+				ID: 2,
+				Label: &Label{
+					ID:          70,
+					Name:        "Ready",
+					Color:       "#FF0000",
+					Description: "",
+				},
+				Position: 2,
+			},
+			{
+				ID: 3,
+				Label: &Label{
+					ID:          71,
+					Name:        "Production",
+					Color:       "#FF5F00",
+					Description: "",
+				},
+				Position: 3,
+			},
+		},
+	}
+
+	gib, resp, err := client.GroupEpicBoards.GetGroupEpicBoard(5, 1, nil, nil)
+	require.NoError(t, err)
+	require.NotNil(t, resp)
+	require.Equal(t, want, gib)
+
+	gib, resp, err = client.GroupEpicBoards.GetGroupEpicBoard(5.01, 1, nil, nil)
+	require.EqualError(t, err, "invalid ID type 5.01, the ID must be an int or a string")
+	require.Nil(t, resp)
+	require.Nil(t, gib)
+
+	gib, resp, err = client.GroupEpicBoards.GetGroupEpicBoard(5, 1, nil, nil, errorOption)
+	require.EqualError(t, err, "RequestOptionFunc returns an error")
+	require.Nil(t, resp)
+	require.Nil(t, gib)
+
+	gib, resp, err = client.GroupEpicBoards.GetGroupEpicBoard(3, 1, nil, nil)
+	require.Error(t, err)
+	require.Nil(t, gib)
+	require.Equal(t, http.StatusNotFound, resp.StatusCode)
+}