From 08999f9d94b356407366270c6247350d14b3789c Mon Sep 17 00:00:00 2001
From: Kevin Grandon <kevingrandon@yahoo.com>
Date: Fri, 22 Dec 2017 22:52:44 -0800
Subject: [PATCH] Add __DEV__ to jest environment

Fixes #90
---
 build/jest-config.js                                  |  3 +++
 test/cli/test-app.js                                  | 11 +++++++++++
 .../test-jest-app/__tests__/environment-variables.js  |  5 +++++
 3 files changed, 19 insertions(+)
 create mode 100644 test/fixtures/test-jest-app/__tests__/environment-variables.js

diff --git a/build/jest-config.js b/build/jest-config.js
index fec8ac37..493ffb71 100644
--- a/build/jest-config.js
+++ b/build/jest-config.js
@@ -3,8 +3,11 @@
 module.exports = {
   cache: true,
   globals: {
+    // Parity with create-universal-package globals.
+    // https://github.com/rtsao/create-universal-package#globals
     __NODE__: process.env.JEST_ENV === 'node',
     __BROWSER__: process.env.JEST_ENV === 'jsdom',
+    __DEV__: process.env.NODE_ENV !== 'production',
   },
   rootDir: process.cwd(),
   setupFiles: [
diff --git a/test/cli/test-app.js b/test/cli/test-app.js
index 5c32c928..6bf77949 100644
--- a/test/cli/test-app.js
+++ b/test/cli/test-app.js
@@ -157,3 +157,14 @@ test('`fusion test-app` coverage', async t => {
   t.ok(response.stdout.includes('Uncovered Lines'));
   t.end();
 });
+
+test.only('`fusion test-app` environment variables', async t => {
+  const dir = path.resolve(__dirname, '../fixtures/test-jest-app');
+  const args = `test-app --dir=${dir} --configPath=../../../build/jest-config.js --coverage --match=environment-variables`;
+
+  const cmd = `require('${runnerPath}').run('${args}')`;
+  const response = await exec(`node -e "${cmd}"`);
+  t.equal(countTests(response.stderr), 2, 'ran 2 tests');
+
+  t.end();
+});
diff --git a/test/fixtures/test-jest-app/__tests__/environment-variables.js b/test/fixtures/test-jest-app/__tests__/environment-variables.js
new file mode 100644
index 00000000..c45fb4e3
--- /dev/null
+++ b/test/fixtures/test-jest-app/__tests__/environment-variables.js
@@ -0,0 +1,5 @@
+import {test} from 'fusion-test-utils';
+
+test('__DEV__ environment variable is set', assert => {
+  assert.equal(__DEV__, true);
+});