From 76490dda75e836de314e1111985c6d1dcbf53480 Mon Sep 17 00:00:00 2001
From: Takafumi Arakaki <aka.tkf@gmail.com>
Date: Sun, 13 Sep 2020 18:18:20 -0700
Subject: [PATCH] Fix test__using_default_setup with PYJULIA_TEST_RUNTIME
 (#420)

Before this patch,

    PYJULIA_TEST_RUNTIME=dummy tox -- --no-julia -k test__using_default_setup

did not work (which came up when I was writing
https://github.com/tkf/PyJuliaTester.jl).  It is fixed by removing
`PYJULIA_TEST_RUNTIME` in `test__using_default_setup`.
---
 .github/workflows/testtests.yml | 21 +++++++++++++++++++++
 src/julia/tests/test_plugin.py  |  3 ++-
 2 files changed, 23 insertions(+), 1 deletion(-)
 create mode 100644 .github/workflows/testtests.yml

diff --git a/.github/workflows/testtests.yml b/.github/workflows/testtests.yml
new file mode 100644
index 00000000..be40ebec
--- /dev/null
+++ b/.github/workflows/testtests.yml
@@ -0,0 +1,21 @@
+name: Test tests
+
+on:
+  push:
+    branches:
+      - master
+    tags: '*'
+  pull_request:
+  workflow_dispatch:
+
+jobs:
+  test__using_default_setup:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - name: Setup python
+        uses: actions/setup-python@v1
+      - run: python -m pip install --upgrade tox
+      - run: python -m tox -- --no-julia -k test__using_default_setup
+        env:
+          PYJULIA_TEST_RUNTIME: dummy
diff --git a/src/julia/tests/test_plugin.py b/src/julia/tests/test_plugin.py
index 8e62ad47..aebb8f3f 100644
--- a/src/julia/tests/test_plugin.py
+++ b/src/julia/tests/test_plugin.py
@@ -10,9 +10,10 @@
 userhome = os.path.expanduser("~")
 
 
-def test__using_default_setup(testdir, request):
+def test__using_default_setup(testdir, request, monkeypatch):
     if request.config.getoption("runpytest") != "subprocess":
         raise ValueError("Need `-p pytester --runpytest=subprocess` options.")
+    monkeypatch.delenv("PYJULIA_TEST_RUNTIME", raising=False)
 
     # create a temporary conftest.py file
     testdir.makeini(