add support for pinned posts

accounts.go

@@ -139,6 +139,18 @@ func (c *Client) GetAccountStatuses(ctx context.Context, id ID, pg *Pagination)
 	return statuses, nil
 }
 
+// GetAccountPinnedStatuses return statuses pinned by specified accuont.
+func (c *Client) GetAccountPinnedStatuses(ctx context.Context, id ID) ([]*Status, error) {
+	var statuses []*Status
+	params := url.Values{}
+	params.Set("pinned", "true")
+	err := c.doAPI(ctx, http.MethodGet, fmt.Sprintf("/api/v1/accounts/%s/statuses", url.PathEscape(string(id))), params, &statuses, nil)
+	if err != nil {
+		return nil, err
+	}
+	return statuses, nil
+}
+
 // GetAccountFollowers return followers list.
 func (c *Client) GetAccountFollowers(ctx context.Context, id ID, pg *Pagination) ([]*Account, error) {
 	var accounts []*Account

accounts_test.go

@@ -144,6 +144,44 @@ func TestGetAccountStatuses(t *testing.T) {
 	}
 }
 
+func TestGetAccountPinnedStatuses(t *testing.T) {
+	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.URL.Path != "/api/v1/accounts/1234567/statuses" {
+			http.Error(w, http.StatusText(http.StatusNotFound), http.StatusNotFound)
+			return
+		}
+		pinned := r.URL.Query().Get("pinned")
+		if pinned != "true" {
+			http.Error(w, http.StatusText(http.StatusNotFound), http.StatusNotFound)
+			return
+		}
+		fmt.Fprintln(w, `[{"content": "foo"}, {"content": "bar"}]`)
+		return
+	}))
+	defer ts.Close()
+
+	client := NewClient(&Config{
+		Server:       ts.URL,
+		ClientID:     "foo",
+		ClientSecret: "bar",
+		AccessToken:  "zoo",
+	})
+	_, err := client.GetAccountPinnedStatuses(context.Background(), "123")
+	if err == nil {
+		t.Fatalf("should be fail: %v", err)
+	}
+	ss, err := client.GetAccountPinnedStatuses(context.Background(), "1234567")
+	if err != nil {
+		t.Fatalf("should not be fail: %v", err)
+	}
+	if ss[0].Content != "foo" {
+		t.Fatalf("want %q but %q", "foo", ss[0].Content)
+	}
+	if ss[1].Content != "bar" {
+		t.Fatalf("want %q but %q", "bar", ss[1].Content)
+	}
+}
+
 func TestGetAccountFollowers(t *testing.T) {
 	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		if r.URL.Path != "/api/v1/accounts/1234567/followers" {