tests for pytorch 1.5 (#1552)

* tests for pytorch 1.5

* up Win

* win

* win

* win

* win

* win

* win

.github/workflows/ci-testing.yml

@@ -19,7 +19,7 @@ jobs:
       fail-fast: false
       # max-parallel: 6
       matrix:
-        os: [ubuntu-18.04, windows-2016, macOS-10.15]
+        os: [ubuntu-18.04, windows-2019, macOS-10.15]
         python-version: [3.6, 3.7, 3.8]
         requires: ['minimal', 'latest']
         exclude:
@@ -42,6 +42,12 @@ jobs:
       run: |
         brew install libomp  # https://github.com/pytorch/pytorch/issues/20030
 
+    # TODO: remove after https://github.com/pytorch/pytorch/issues/32186 is resolved
+    - name: Setup Windows
+      if: runner.os == 'windows' && matrix.requires == 'latest'
+      run: |
+        python -c "req = open('requirements.txt').read().replace('torch>=1.1', 'torch<1.5') ; open('requirements.txt', 'w').write(req)"
+
     - name: Set min. dependencies
       if: matrix.requires == 'minimal'
       run: |