Init. Map does not function and only working on backend at the moment.

node_modules/sleep/appveyor.yml

@@ -0,0 +1,33 @@
+platform:
+  - x64
+
+# Test against these versions of Node.js.
+environment:
+  matrix:
+    - nodejs_version: "8"
+    - nodejs_version: "10"
+
+# Install scripts. (runs after repo cloning)
+install:
+  - ps: Install-Product node $env:nodejs_version
+  - set CI=true
+  - set PATH=%APPDATA%\npm;c:\MinGW\bin;%PATH%
+  - npm install npm@latest -g
+  - npm ci
+
+# Post-install test scripts.
+test_script:
+  # Output useful info for debugging.
+  - node --version
+  - npm --version
+  # run tests
+  - npm test
+
+# Don't actually build.
+build: off
+
+# Set build version format here instead of in the admin panel.
+version: "{build}"
+
+shallow_clone: true
+clone_depth: 1