From 6f6270d477a33bb727b26d45af71a45fdb559cc2 Mon Sep 17 00:00:00 2001
From: sveitser <sveitser@gmail.com>
Date: Mon, 31 May 2021 20:33:11 +0800
Subject: [PATCH] python3Packages.pyls-black: add patch to fix test

---
 .../development/python-modules/pyls-black/default.nix | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/pkgs/development/python-modules/pyls-black/default.nix b/pkgs/development/python-modules/pyls-black/default.nix
index c59a67606ee6..7c8652b0a5e3 100644
--- a/pkgs/development/python-modules/pyls-black/default.nix
+++ b/pkgs/development/python-modules/pyls-black/default.nix
@@ -1,4 +1,4 @@
-{ lib, buildPythonPackage, fetchFromGitHub
+{ lib, buildPythonPackage, fetchFromGitHub, fetchpatch
 , black, toml, pytest, python-language-server, isPy3k
 }:
 
@@ -13,6 +13,15 @@ buildPythonPackage rec {
     sha256 = "0cjf0mjn156qp0x6md6mncs31hdpzfim769c2lixaczhyzwywqnj";
   };
 
+  # Fix test failure with black 21.4b0+
+  # Remove if https://github.com/rupert/pyls-black/pull/39 merged.
+  patches = [
+    (fetchpatch {
+      url = "https://github.com/rupert/pyls-black/commit/728207b540d9c25eb0d1cd96419ebfda2e257f63.patch";
+      sha256 = "0i3w5myhjl5lq1lpkizagnmk6m8fkn3igfyv5f2qcrn5n7f119ak";
+    })
+  ];
+
   disabled = !isPy3k;
 
   checkPhase = ''