Use a more reliable script to run tests on Windows

Author: Alhadis

.travis.yml

@@ -4,7 +4,9 @@ branches:
 git:
     depth: 10
 
-language: cpp
+language: node_js
+
+node_js: 12
 
 matrix:
     include:
@@ -36,4 +38,4 @@ notifications:
         on_success: never
         on_failure: change
 
-script: "curl -sL https://git.io/fji1w | sh"
+script: curl -sL https://git.io/fji1w | sh

appveyor.yml

@@ -1,27 +1,25 @@
-version: "{build}"
-
-platform: x64
+# Sane defaults for running tests only
+version:   "{build}"
+platform:  x64
+test:      on
+build:     off
+deploy:    off
+skip_tags: true
 
 branches:
     only:
         - master
 
-build_script:
-    - ps: iex ((new-object net.webclient).DownloadString("https://raw.githubusercontent.com/atom/ci/master/build-package.ps1"))
-
-clone_depth: 10
-
-skip_tags: true
-
 environment:
-    APM_TEST_PACKAGES:
+    global:
+        ATOM_CI_PACKAGE_ROOT: test
 
     matrix:
         - ATOM_CHANNEL: stable
         - ATOM_CHANNEL: beta
 
 install:
-    - ps: Install-Product node 4
+    - ps: Install-Product node $env:nodejs_version
 
-test: off
-deploy: off
+test_script:
+    - ps: (New-Object net.WebClient).DownloadString("https://git.io/JWdh6") | iex