1 files changed, 18 insertions, 16 deletions
diff --git a/test/lib/utils/is-windows-bash.js b/test/lib/utils/is-windows-bash.js
index 94fde0ace..0fbebdf8e 100644
--- a/test/lib/utils/is-windows-bash.js
+++ b/test/lib/utils/is-windows-bash.js
@@ -1,4 +1,5 @@
 const t = require('tap')
+const mockGlobal = require('../../fixtures/mock-globals.js')
 
 const isWindowsBash = () => {
   delete require.cache[require.resolve('../../../lib/utils/is-windows-bash.js')]
@@ -6,23 +7,24 @@ const isWindowsBash = () => {
   return require('../../../lib/utils/is-windows-bash.js')
 }
 
-Object.defineProperty(process, 'platform', {
-  value: 'posix',
-  configurable: true,
-})
-t.equal(isWindowsBash(), false, 'false when not windows')
+t.test('posix', (t) => {
+  mockGlobal(t, { 'process.platform': 'posix' })
+  t.equal(isWindowsBash(), false, 'false when not windows')
 
-Object.defineProperty(process, 'platform', {
-  value: 'win32',
-  configurable: true,
+  t.end()
 })
-process.env.MSYSTEM = 'not ming'
-process.env.TERM = 'dumb'
-t.equal(isWindowsBash(), false, 'false when not mingw or cygwin')
 
-process.env.TERM = 'cygwin'
-t.equal(isWindowsBash(), true, 'true when cygwin')
+t.test('win32', (t) => {
+  mockGlobal(t, { 'process.platform': 'win32' })
+
+  mockGlobal(t, { 'process.env': { TERM: 'dumb', MSYSTEM: undefined } })
+  t.equal(isWindowsBash(), false, 'false when not mingw or cygwin')
+
+  mockGlobal(t, { 'process.env.TERM': 'cygwin' })
+  t.equal(isWindowsBash(), true, 'true when cygwin')
 
-process.env.MSYSTEM = 'MINGW64'
-process.env.TERM = 'dumb'
-t.equal(isWindowsBash(), true, 'true when mingw')
+  mockGlobal(t, { 'process.env': { TERM: 'dumb', MSYSTEM: 'MINGW64' } })
+  t.equal(isWindowsBash(), true, 'true when mingw')
+
+  t.end()
+})