From 78413483d3fc5928800aa3b68bfb38f913e52b2f Mon Sep 17 00:00:00 2001
From: Robert Scott <code@humanleg.org.uk>
Date: Sun, 11 Oct 2020 19:49:46 +0100
Subject: [PATCH] python3Packages.cocotb: fix tests

---
 pkgs/development/python-modules/cocotb/default.nix | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/pkgs/development/python-modules/cocotb/default.nix b/pkgs/development/python-modules/cocotb/default.nix
index c0148effdf9..26fceb2e78f 100644
--- a/pkgs/development/python-modules/cocotb/default.nix
+++ b/pkgs/development/python-modules/cocotb/default.nix
@@ -33,6 +33,12 @@ buildPythonPackage rec {
   checkInputs = [ swig verilog ];
 
   checkPhase = ''
+    # test expected failures actually pass because of a fix in our icarus version
+    # https://github.com/cocotb/cocotb/issues/1952
+    substituteInPlace tests/test_cases/test_discovery/test_discovery.py \
+      --replace 'def access_single_bit' $'def foo(x): pass\ndef foo' \
+      --replace 'def access_single_bit_assignment' $'def foo(x): pass\ndef foo'
+
     export PATH=$out/bin:$PATH
     make test
   '';