Run tests on Windows and macOS, not just Linux.

Author: ncalexan

.github/workflows/check.yml

@@ -32,7 +32,15 @@ jobs:
 
   android_unversioned_tests:
     # The type of runner that the job will run on
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-latest
+          - macos-latest
+          - windows-latest
 
     steps:
       # Checks-out your repository under $GITHUB_WORKSPACE for the job.
@@ -65,27 +73,22 @@ jobs:
     needs: [generate_versions] # , sanity_check]
 
     # The type of runner that the job will run on
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
 
     strategy:
       fail-fast: false
       matrix:
+        os:
+          - ubuntu-latest
+          - macos-latest
+          - windows-latest
         androidTestTask: ${{ fromJson(needs.generate_versions.outputs.matrix) }}
 
     # Steps represent a sequence of tasks that will be executed as part of the job
     steps:
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
       - uses: actions/checkout@v2
 
-      # # Sets up the NDK required by AGP 3.6.x
-      # - name: Setup NDK
-      #   run: sudo $ANDROID_HOME/tools/bin/sdkmanager 'ndk;20.0.5594570'
-
-      # - name: Install Rustup
-      #   run: |
-      #     curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y --default-toolchain none
-      #     echo "$HOME/.cargo/bin" >> $GITHUB_PATH
-
       - name: Setup Rust
         run: |
           rustup toolchain install stable