https://github.com/rspec/rspec-rails/pull/2521

changes.diff

diff --git a/Gemfile b/Gemfile
index 8d3bc88..6272179 100644
--- a/Gemfile
+++ b/Gemfile
@@ -23,6 +23,11 @@ group :development, :test do
   gem "debug", ">= 1.0.0", platforms: %i[ mri mingw x64_mingw ]
 end
 
+group :test do
+  gem 'rspec'
+  gem 'rspec-rails'
+end
+
 group :development do
   # Speed up commands on slow machines / big apps [https://github.com/rails/spring]
   # gem "spring"
diff --git a/Gemfile.lock b/Gemfile.lock
index d77b7b6..0d572c5 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -65,6 +65,7 @@ GEM
     debug (1.2.2)
       irb (>= 1.3.6)
       reline (>= 0.2.7)
+    diff-lcs (1.4.4)
     erubi (1.10.0)
     globalid (0.5.2)
       activesupport (>= 5.0)
@@ -121,6 +122,27 @@ GEM
     rake (13.0.6)
     reline (0.2.7)
       io-console (~> 0.5)
+    rspec (3.10.0)
+      rspec-core (~> 3.10.0)
+      rspec-expectations (~> 3.10.0)
+      rspec-mocks (~> 3.10.0)
+    rspec-core (3.10.1)
+      rspec-support (~> 3.10.0)
+    rspec-expectations (3.10.1)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.10.0)
+    rspec-mocks (3.10.2)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.10.0)
+    rspec-rails (5.0.2)
+      actionpack (>= 5.2)
+      activesupport (>= 5.2)
+      railties (>= 5.2)
+      rspec-core (~> 3.10)
+      rspec-expectations (~> 3.10)
+      rspec-mocks (~> 3.10)
+      rspec-support (~> 3.10)
+    rspec-support (3.10.2)
     sprockets (4.0.2)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
@@ -144,6 +166,8 @@ DEPENDENCIES
   debug (>= 1.0.0)
   puma (~> 5.0)
   rails (~> 7.0.0.alpha1)
+  rspec
+  rspec-rails
   sqlite3 (~> 1.4)
   tzinfo-data
 
diff --git a/app/views/root/index.html.erb b/app/views/root/index.html.erb
new file mode 100644
index 0000000..e69de29
diff --git a/spec/index.html.erb_spec.rb b/spec/index.html.erb_spec.rb
new file mode 100644
index 0000000..4b160bb
--- /dev/null
+++ b/spec/index.html.erb_spec.rb
@@ -0,0 +1,13 @@
+# frozen_string_literal: true
+
+ENV['RAILS_ENV'] ||= 'test'
+require File.expand_path('../../config/environment', __FILE__)
+
+require 'rspec/rails'
+
+RSpec.describe 'root/index.html.erb', type: :view do
+  it do
+    # expected no Exception, got #<ActionView::MissingTemplate: Missing template root/index with {:locale=>[:en], :formats=>[:html], :...ariants=>[], :handlers=>["erb"]}.
+    expect { render }.to_not raise_error
+  end
+end