diff --git a/Library/Homebrew/test/cmd/upgrade_spec.rb b/Library/Homebrew/test/cmd/upgrade_spec.rb
index 4e7953ee74..0bd3453644 100644
--- a/Library/Homebrew/test/cmd/upgrade_spec.rb
+++ b/Library/Homebrew/test/cmd/upgrade_spec.rb
@@ -15,4 +15,17 @@ RSpec.describe Homebrew::Cmd::UpgradeCmd do
     expect(HOMEBREW_CELLAR/"testball/0.1").to be_a_directory
     expect(HOMEBREW_CELLAR/"testball/0.0.1").not_to exist
   end
+
+  it "upgrades with asking for user prompts", :integration_test do
+    setup_test_formula "testball"
+    (HOMEBREW_CELLAR/"testball/0.0.1/foo").mkpath
+
+    expect {
+      brew "upgrade", "--ask"
+    }.to output(/.*Formula\s*\(1\):\s*testball.*/
+         ).to_stdout.and not_to_output.to_stderr
+
+    expect(HOMEBREW_CELLAR/"testball/0.1").to be_a_directory
+    expect(HOMEBREW_CELLAR/"testball/0.0.1").not_to exist
+  end
 end