diff --git a/.appveyor.yml b/.appveyor.yml
new file mode 100644
index 000000000..ecf889453
--- /dev/null
+++ b/.appveyor.yml
@@ -0,0 +1,15 @@
+version: '{build}'
+branches:
+  only: [master]
+init:
+- ps: Install-Product node 8
+install:
+- cmd: npm -v 
+- cmd: node -v 
+- cmd: npm install -g yarn
+- cmd: yarn
+cache:
+- node_modules
+build: off
+test_script:
+- cmd: yarn test
diff --git a/tests_integration/__tests__/plugin-extensions.js b/tests_integration/__tests__/plugin-extensions.js
index aaf934b9c..e13d32746 100644
--- a/tests_integration/__tests__/plugin-extensions.js
+++ b/tests_integration/__tests__/plugin-extensions.js
@@ -1,7 +1,7 @@
 "use strict";
 
 const runPrettier = require("../runPrettier");
-const EOL = require("os").EOL;
+const EOL = "\n";
 
 describe("uses 'extensions' from languages to determine parser", () => {
   runPrettier("plugins/extensions", ["*.foo", "--plugin=./plugin"]).test({
diff --git a/tests_integration/__tests__/plugin-preprocess.js b/tests_integration/__tests__/plugin-preprocess.js
index 7b2ab7709..ee6f97cb2 100644
--- a/tests_integration/__tests__/plugin-preprocess.js
+++ b/tests_integration/__tests__/plugin-preprocess.js
@@ -1,7 +1,7 @@
 "use strict";
 
 const runPrettier = require("../runPrettier");
-const EOL = require("os").EOL;
+const EOL = "\n";
 
 describe("parser preprocess function is used to reshape input text", () => {
   runPrettier("plugins/preprocess", ["*.foo", "--plugin=./plugin"]).test({
diff --git a/tests_integration/__tests__/plugin-resolution.js b/tests_integration/__tests__/plugin-resolution.js
index 17613bc02..2e9a51d6f 100644
--- a/tests_integration/__tests__/plugin-resolution.js
+++ b/tests_integration/__tests__/plugin-resolution.js
@@ -1,7 +1,7 @@
 "use strict";
 
 const runPrettier = require("../runPrettier");
-const EOL = require("os").EOL;
+const EOL = "\n";
 
 describe("automatically loads 'prettier-plugin-*'", () => {
   runPrettier("plugins/automatic", ["file.txt", "--parser=foo"]).test({