diff --git a/Library/Homebrew/test/Gemfile b/Library/Homebrew/test/Gemfile
index 5641684a72..25c8ce7ecb 100644
--- a/Library/Homebrew/test/Gemfile
+++ b/Library/Homebrew/test/Gemfile
@@ -4,6 +4,9 @@ gem "mocha"
 gem "minitest"
 gem "minitest-reporters"
 gem "parallel_tests"
+gem "rspec"
+gem "rspec-its", require: false
+gem "rspec-wait", require: false
 
 group :coverage do
   gem "simplecov", require: false
diff --git a/Library/Homebrew/test/Gemfile.lock b/Library/Homebrew/test/Gemfile.lock
index 65ac7ef567..fba45d77b3 100644
--- a/Library/Homebrew/test/Gemfile.lock
+++ b/Library/Homebrew/test/Gemfile.lock
@@ -7,6 +7,7 @@ GEM
       json
       simplecov
       url
+    diff-lcs (1.3)
     docile (1.1.5)
     json (2.0.3)
     metaclass (0.0.4)
@@ -21,6 +22,24 @@ GEM
     parallel (1.10.0)
     parallel_tests (2.13.0)
       parallel
+    rspec (3.5.0)
+      rspec-core (~> 3.5.0)
+      rspec-expectations (~> 3.5.0)
+      rspec-mocks (~> 3.5.0)
+    rspec-core (3.5.4)
+      rspec-support (~> 3.5.0)
+    rspec-expectations (3.5.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.5.0)
+    rspec-its (1.2.0)
+      rspec-core (>= 3.0.0)
+      rspec-expectations (>= 3.0.0)
+    rspec-mocks (3.5.0)
+      diff-lcs (>= 1.2.0, < 2.0)
+      rspec-support (~> 3.5.0)
+    rspec-support (3.5.0)
+    rspec-wait (0.0.9)
+      rspec (>= 3, < 4)
     ruby-progressbar (1.8.1)
     simplecov (0.13.0)
       docile (~> 1.1.0)
@@ -38,7 +57,10 @@ DEPENDENCIES
   minitest-reporters
   mocha
   parallel_tests
+  rspec
+  rspec-its
+  rspec-wait
   simplecov
 
 BUNDLED WITH
-   1.13.7
+   1.14.3