test installer options

.github/workflows/test.yml

@@ -78,3 +78,20 @@ jobs:
         extra_nix_config: |
           experimental-features = nix-command flakes
     - run: nix flake show github:NixOS/nixpkgs
+
+  installer-options:
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest]
+    runs-on: ${{ matrix.os }}
+    steps:
+    - uses: actions/checkout@v2
+    - run: yarn install --frozen-lockfile
+    - run: yarn build
+    - name: Install Nix
+      uses: ./
+      with: 
+        nix_path: nixpkgs=channel:nixos-20.03
+        install_url: https://nix-ci.cachix.org/serve/lb41az54kzk6j12p81br4bczary7m145/install
+        install_options: '--tarball-url-prefix https://nix-ci.cachix.org/serve'
+    - run: nix-build test.nix