CI: Colorize and widen Pytest summary

Pytest shows some error messages only in summary while also truncating lines there.

.github/workflows/test.yml

@@ -1,50 +1,52 b''
 name: Run tests
 
 on:
   push:
   pull_request:
   # Run weekly on Monday at 1:23 UTC
   schedule:
   - cron:  '23 1 * * 1'
   workflow_dispatch:
 
 
 jobs:
   test:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
         os: [ubuntu-latest]
         python-version: ["3.7", "3.8", "3.9"]
         # Test all on ubuntu, test ends on macos
         include:
           - os: macos-latest
             python-version: "3.7"
           - os: macos-latest
             python-version: "3.9"
 
     steps:
     - uses: actions/checkout@v2
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v2
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install and update Python dependencies
       run: |
         python -m pip install --upgrade pip setuptools wheel
         python -m pip install --upgrade -e file://$PWD#egg=ipython[test]
         python -m pip install --upgrade --upgrade-strategy eager trio curio 
         python -m pip install --upgrade pytest pytest-cov pytest-trio 'matplotlib!=3.2.0' pandas
         python -m pip install --upgrade check-manifest pytest-cov anyio
     - name: Check manifest
       run: check-manifest
     - name: iptest
       run: |
         cd /tmp && iptest --coverage xml && cd -
         cp /tmp/ipy_coverage.xml ./
         cp /tmp/.coverage ./
     - name: pytest
+      env:
+        COLUMNS: 120
       run: |
-        pytest -v --cov --cov-report=xml
+        pytest --color=yes -v --cov --cov-report=xml
     - name: Upload coverage to Codecov
       uses: codecov/codecov-action@v2

appveyor.yml

@@ -1,36 +1,39 b''
 build: false
 matrix:
   fast_finish: true     # immediately finish build once one of the jobs fails.
 
 environment:
+  global:
+    COLUMNS: 120  # Appveyor web viwer window width is 130 chars
+
   matrix:
 
    - PYTHON: "C:\\Python37-x64"
      PYTHON_VERSION: "3.7.x"
      PYTHON_ARCH: "64"
 
    - PYTHON: "C:\\Python38"
      PYTHON_VERSION: "3.8.x"
      PYTHON_ARCH: "32"
 
    - PYTHON: "C:\\Python38-x64"
      PYTHON_VERSION: "3.8.x"
      PYTHON_ARCH: "64"
 
 init:
   - "ECHO %PYTHON% %PYTHON_VERSION% %PYTHON_ARCH%"
 
 install:
   - "SET PATH=%PYTHON%;%PYTHON%\\Scripts;%PATH%"
   - python -m pip install --upgrade setuptools pip
   - pip install nose coverage pytest pytest-cov pytest-trio pywin32 matplotlib pandas
   - pip install .[test]
   - mkdir results
   - cd results
 test_script:
   - iptest --coverage xml
   - cd ..
-  - pytest -ra --cov --cov-report=xml
+  - pytest --color=yes -ra --cov --cov-report=xml
 on_finish:
   - curl -Os https://uploader.codecov.io/latest/windows/codecov.exe
   - codecov -e PYTHON_VERSION,PYTHON_ARCH