Use GitHub Actions instead of Travis

.github/workflows/tests.yml

@@ -0,0 +1,48 @@
+name: WeasyPrint's tests
+on: [push]
+
+jobs:
+  tests:
+    name: ${{ matrix.os }} - ${{ matrix.python-version }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        python-version: [3.6, 3.7, 3.8, pypy3]
+        exclude:
+          # Pillow wheel missing for this configuration
+          - os: macos-latest
+            python-version: pypy3
+          # Cannot find installed libraries
+          - os: windows-latest
+            python-version: pypy3
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-python@v1
+        with:
+          python-version: ${{ matrix.python-version }}
+      - name: Install DejaVu (Ubuntu)
+        if: matrix.os == 'ubuntu-latest'
+        run: sudo apt-get update -y && sudo apt-get install ttf-dejavu -y
+      - name: Install DejaVu, cairo, pango, gdk-pixbuf and libffi (MacOS)
+        if: matrix.os == 'macos-latest'
+        run: |
+          brew tap homebrew/cask-fonts
+          brew cask install font-dejavu
+          brew install cairo pango gdk-pixbuf libffi
+      - name: Install msys2 and DejaVu (Windows)
+        if: matrix.os == 'windows-latest'
+        run: |
+          choco install -y --no-progress msys2
+          powershell "C:\tools\msys64\usr\bin\bash -lc 'pacman -S mingw-w64-x86_64-ttf-dejavu mingw-w64-x86_64-gtk3 --noconfirm'"
+          xcopy "C:\tools\msys64\mingw64\share\fonts\TTF" "C:\Users\runneradmin\.fonts" /e /i
+          $env:PATH += ";C:\tools\msys64\mingw64\bin"
+          echo "::set-env name=PATH::$env:PATH"
+      - name: Upgrade pip and setuptools
+        run: python -m pip install --upgrade pip setuptools
+      - name: Upgrade cffi (Windows)
+        if: matrix.os == 'windows-latest'
+        run: python -m pip install --upgrade cffi
+      - name: Launch tests
+        run: python setup.py test --addopts="-v"