Run tests on Linux/MacOS/Windows

.travis.yml

@@ -1,9 +1,29 @@
 sudo: false
 language: python
-python:
-  - "3.6"
+
+# See https://docs.travis-ci.com/user/languages/python/#running-python-tests-on-multiple-operating-systems
+jobs:
+  include:
+    # === LINUX ===
+    - name: "Linux"
+      python: 3.8
+
+    # === MacOS ===
+    - name: "macOS"
+      os: osx
+      osx_image: xcode11.2  # Python 3.7.4 running on macOS 10.14.4
+      language: shell       # 'language: python' is an error on Travis CI macOS
+
+    # === Windows ===
+    - name: "Windows"
+      os: windows           # Windows 10.0.17134 N/A Build 17134
+      language: shell       # 'language: python' is an error on Travis CI Windows
+      before_install:
+        - choco install python --version 3.8.0
+        - python -m pip install --upgrade pip
+      env: PATH=/c/Python38:/c/Python38/Scripts:$PATH
 install:
-  - pip install -r requirements.txt
+  - pip3 install -r requirements.txt
 script:
   - tox
 after_success:

docs/TODO.md

@@ -24,6 +24,7 @@
 ## Assembly
 * (!!!) Add tests for multipoint-constraints
 * Use sparse matrices
+    - https://docs.scipy.org/doc/scipy/reference/generated/scipy.sparse.coo_matrix.html
 
 ## Misc
 * Test run multiprocessing

tests/integration/test_getting_started.py

@@ -1,8 +1,9 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
 
-import os
 from pathlib import Path
+import os
+import shutil
 
 # Suppress Matplotlib figure
 from matplotlib import pyplot as plt
@@ -21,7 +22,7 @@ def rerun_and_save_plots(model, fname):
 
     old_fname = Path(r.get('files').get('plots')[0])
     new_fname = os.path.join(os.path.dirname(old_fname), fname)
-    os.rename(old_fname, new_fname)
+    shutil.move(old_fname, new_fname)
 
 
 def test_cantilever():