Chore: CI with Azure Pipelines

[skip ci]

README.md

@@ -1,6 +1,5 @@
 [![NPM version][npm-image]][npm-url]
-[![build status][travis-image]][travis-url]
-[![Build status][appveyor-image]][appveyor-url]
+[![Build Status](https://dev.azure.com/eslint/eslint/_apis/build/status/eslint.eslint?branchName=master)](https://dev.azure.com/eslint/eslint/_build/latest?definitionId=1&branchName=master)
 [![Downloads][downloads-image]][downloads-url]
 [![Bountysource](https://www.bountysource.com/badge/tracker?tracker_id=282608)](https://www.bountysource.com/trackers/282608-eslint?utm_source=282608&utm_medium=shield&utm_campaign=TRACKER_BADGE)
 [![Join the chat at https://gitter.im/eslint/eslint](https://badges.gitter.im/Join%20Chat.svg)](https://gitter.im/eslint/eslint?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
@@ -271,11 +270,5 @@ The following companies, organizations, and individuals support ESLint's ongoing
 
 [npm-image]: https://img.shields.io/npm/v/eslint.svg?style=flat-square
 [npm-url]: https://www.npmjs.com/package/eslint
-[travis-image]: https://img.shields.io/travis/eslint/eslint/master.svg?style=flat-square
-[travis-url]: https://travis-ci.org/eslint/eslint
-[appveyor-image]: https://ci.appveyor.com/api/projects/status/iwxmiobcvbw3b0av/branch/master?svg=true
-[appveyor-url]: https://ci.appveyor.com/project/nzakas/eslint/branch/master
-[coveralls-image]: https://img.shields.io/coveralls/eslint/eslint/master.svg?style=flat-square
-[coveralls-url]: https://coveralls.io/r/eslint/eslint?branch=master
 [downloads-image]: https://img.shields.io/npm/dm/eslint.svg?style=flat-square
 [downloads-url]: https://www.npmjs.com/package/eslint

azure-pipelines.yml

@@ -0,0 +1,53 @@
+trigger:
+  - master
+
+jobs:
+  - job: tests_on_linux
+    displayName: Test on Linux
+    pool:
+      vmImage: 'Ubuntu-16.04'
+    strategy:
+      matrix:
+        "Node.js 12":
+          node_version: 12.x
+        "Node.js 10":
+          node_version: 10.x
+        "Node.js 8":
+          node_version: 8.x
+    steps:
+      - task: NodeTool@0
+        displayName: Install Node.js
+        inputs:
+          versionSpec: $(node_version)
+      - script: npm install
+        displayName: Install Packages
+      - script: npm test
+        displayName: Test
+
+  - job: tests_on_windows
+    displayName: Test on Windows
+    pool:
+      vmImage: 'Windows-2019'
+    steps:
+      - task: NodeTool@0
+        displayName: Install Node.js
+        inputs:
+          versionSpec: 12.x
+      - script: npm install
+        displayName: Install Packages
+      - script: npm test
+        displayName: Test
+
+  - job: tests_on_macos
+    displayName: Test on macOS
+    pool:
+      vmImage: 'macOS-10.14'
+    steps:
+      - task: NodeTool@0
+        displayName: Install Node.js
+        inputs:
+          versionSpec: 12.x
+      - script: npm install
+        displayName: Install Packages
+      - script: npm test
+        displayName: Test

tests/lib/cli-engine/_utils.js

@@ -293,6 +293,11 @@ function defineConfigArrayFactoryWithInMemoryFileSystem({
         platform: process.platform === "win32" ? "win32" : "posix"
     });
 
+    // Support D: drive.
+    if (process.platform === "win32") {
+        fs._roots.set("D:", fs._makeDir(0o777)); // eslint-disable-line no-underscore-dangle
+    }
+
     supportMkdirRecursiveOption(fs, cwd);
     fs.mkdirSync(cwd(), { recursive: true });