grep -rl "test\.com" . | xargs sed -i 's/test.com/example.com/g'

README.md

@@ -47,7 +47,7 @@ Here are some useful quick links:
 
 To test out the demo, you may login to the [Dashboard](https://dev.cachethq.io/dashboard) with the following:
 
-- **Username:** `test` or `test@test.com`
+- **Username:** `test` or `test@example.com`
 - **Password:** `test123`
 
 > The demo resets every 30 minutes.

app/Console/Commands/DemoSeederCommand.php

@@ -444,7 +444,7 @@ protected function seedUsers()
             [
                 'username' => 'test',
                 'password' => 'test123',
-                'email'    => 'test@test.com',
+                'email'    => 'test@example.com',
                 'level'    => User::LEVEL_ADMIN,
                 'api_key'  => '9yMHsdioQosnyVK4iCVR',
             ],

docs/faq.md

@@ -16,7 +16,7 @@ Psy Shell v0.8.8 (PHP 7.1.6 — cli) by Justin Hileman
 => CachetHQ\Cachet\Models\User {#865
     id: 1,
     username: "test",
-    email: "test@test.com",
+    email: "test@example.com",
     api_key: "9yMHsdioQosnyVK4iCVR",
     active: 1,
     level: 1,

tests/Bus/Commands/User/CreateUserCommandTest.php

@@ -31,7 +31,7 @@ protected function getObjectAndParams()
         $params = [
             'username' => 'Test',
             'password' => 'fooey',
-            'email'    => 'test@test.com',
+            'email'    => 'test@example.com',
             'level'    => 1,
         ];
 

tests/Bus/Commands/User/SignupUserCommandTest.php

@@ -30,7 +30,7 @@ protected function getObjectAndParams()
         $params = [
             'username' => 'Test',
             'password' => 'fooey',
-            'email'    => 'test@test.com',
+            'email'    => 'test@example.com',
             'level'    => 1,
         ];