add github actions workflow, remove travis.yml

.github/workflows/run-tests.yml

@@ -0,0 +1,26 @@
+name: Run tests on pushes and on PRs
+on: [push, pull_request]
+jobs:
+  run_tests:
+    name: Run tests
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-python@v2
+        with:
+          python-version: "3.6"
+      - uses: actions/setup-node@v2
+        with:
+          node-version: "10"
+
+      - name: Install pipenv and python dependencies
+        run: |
+          pip install -U pip pipenv
+          pipenv sync -d
+      - name: Install node dependencies
+        run: npm install
+
+      - name: Run tests with pytest
+        run: pipenv run pytest --cov=.
+
+      - uses: codecov/codecov-action@v2

.travis.yml

@@ -1,25 +0,0 @@
-version: ~> 1.0
-
-os: linux
-dist: bionic
-
-language: python
-python:
-    - 3.6
-    - 3.7
-    - 3.8
-    - 3.9
-install:
-    - pip install -r requirements.txt -r requirements-dev.txt
-    - nvm install 10
-    - nvm use 10
-    - npm install
-script:
-    - pytest --cov=.
-after_success:
-    - codecov
-cache:
-    pip: true
-    directories:
-        - node_modules
-