From 1d470242260b4e0cabda8170ec6b42db47352382 Mon Sep 17 00:00:00 2001
From: Tobias Bieniek <tobias.bieniek@gmail.com>
Date: Thu, 11 Oct 2018 16:05:21 +0200
Subject: [PATCH] CI: Use `yarn` instead of `npm`

---
 .travis.yml         | 14 +++++++-------
 config/ember-try.js |  3 ++-
 2 files changed, 9 insertions(+), 8 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index 1c275ec9..8067ee93 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -11,14 +11,14 @@ branches:
   - /^dependabot\/.*$/
 
 cache:
-  directories:
-    - $HOME/.npm
+  yarn: true
 
 before_install:
-  - npm config set spin false
+  - curl -o- -L https://yarnpkg.com/install.sh | bash
+  - export PATH=$HOME/.yarn/bin:$PATH
 
 install:
-  - npm install
+  - yarn install --no-lockfile
 
 jobs:
   include:
@@ -32,7 +32,7 @@ jobs:
     script:
       # Usually, it's ok to finish the test scenario without reverting
       #  to the addon's original dependency state, skipping "cleanup".
-      - npm run test:all -- --skip-cleanup
+      - yarn test:all --skip-cleanup
 
   - <<: *ember-test
     env: TEST_SUITE=test:keep     # used only to make Travis UI show description
@@ -41,14 +41,14 @@ jobs:
     env: NAME=lint          # used only to make Travis UI show description
 
     script:
-      - npm run lint
+      - yarn lint
 
   - &node-test
     stage: test
     env: NAME=node-tests    # used only to make Travis UI show description
 
     script:
-      - npm run test:node
+      - yarn test:node
 
   - <<: *node-test
     node_js: 8
diff --git a/config/ember-try.js b/config/ember-try.js
index 1c782d30..2835054d 100644
--- a/config/ember-try.js
+++ b/config/ember-try.js
@@ -11,7 +11,8 @@ module.exports = function() {
     getChannelURL('canary'),
   ]).then((urls) => {
     return {
-      command: process.env.TEST_SUITE ? `npm ${process.env.TEST_SUITE}` : 'npm test',
+      useYarn: true,
+      command: process.env.TEST_SUITE ? `yarn ${process.env.TEST_SUITE}` : 'yarn test',
       useVersionCompatibility: true,
       scenarios: [
         {