diff --git a/Library/Homebrew/test/cmd/shared_examples/args_parse.rb b/Library/Homebrew/test/cmd/shared_examples/args_parse.rb
index b2a89271ae..865f480013 100644
--- a/Library/Homebrew/test/cmd/shared_examples/args_parse.rb
+++ b/Library/Homebrew/test/cmd/shared_examples/args_parse.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: true
 
-RSpec.shared_examples "parseable arguments" do |argv: []|
+RSpec.shared_examples "parseable arguments" do |argv: nil|
   subject(:method_name) { "#{command_name.tr("-", "_")}_args" }
 
   let(:command_name) do |example|
@@ -9,6 +9,8 @@ RSpec.shared_examples "parseable arguments" do |argv: []|
 
   it "can parse arguments" do
     if described_class
+      argv ||= described_class.parser.instance_variable_get(:@min_named_args)&.times&.map { "argument" }
+      argv ||= []
       cmd = described_class.new(argv)
       expect(cmd.args).to be_a Homebrew::CLI::Args
     else
diff --git a/Library/Homebrew/test/dev-cmd/bottle_spec.rb b/Library/Homebrew/test/dev-cmd/bottle_spec.rb
index 58dbd58cc6..d646e6b1d5 100644
--- a/Library/Homebrew/test/dev-cmd/bottle_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/bottle_spec.rb
@@ -30,7 +30,7 @@ RSpec.describe Homebrew::DevCmd::Bottle do
     EOS
   end
 
-  it_behaves_like "parseable arguments", argv: ["foo"]
+  it_behaves_like "parseable arguments"
 
   it "builds a bottle for the given Formula", :integration_test do
     install_test_formula "testball", build_bottle: true
diff --git a/Library/Homebrew/test/dev-cmd/bump-cask-pr_spec.rb b/Library/Homebrew/test/dev-cmd/bump-cask-pr_spec.rb
index 8454650c9d..7c0a5afa97 100644
--- a/Library/Homebrew/test/dev-cmd/bump-cask-pr_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/bump-cask-pr_spec.rb
@@ -4,5 +4,5 @@ require "cmd/shared_examples/args_parse"
 require "dev-cmd/bump-cask-pr"
 
 RSpec.describe Homebrew::DevCmd::BumpCaskPr do
-  it_behaves_like "parseable arguments", argv: ["foo"]
+  it_behaves_like "parseable arguments"
 end
diff --git a/Library/Homebrew/test/dev-cmd/bump-revision_spec.rb b/Library/Homebrew/test/dev-cmd/bump-revision_spec.rb
index 10c2646451..e6d8d516cc 100644
--- a/Library/Homebrew/test/dev-cmd/bump-revision_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/bump-revision_spec.rb
@@ -4,5 +4,5 @@ require "cmd/shared_examples/args_parse"
 require "dev-cmd/bump-revision"
 
 RSpec.describe Homebrew::DevCmd::BumpRevision do
-  it_behaves_like "parseable arguments", argv: ["foo"]
+  it_behaves_like "parseable arguments"
 end
diff --git a/Library/Homebrew/test/dev-cmd/bump-unversioned-casks_spec.rb b/Library/Homebrew/test/dev-cmd/bump-unversioned-casks_spec.rb
index f6c6936307..48250d51d4 100644
--- a/Library/Homebrew/test/dev-cmd/bump-unversioned-casks_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/bump-unversioned-casks_spec.rb
@@ -4,5 +4,5 @@ require "cmd/shared_examples/args_parse"
 require "dev-cmd/bump-unversioned-casks"
 
 RSpec.describe Homebrew::DevCmd::BumpUnversionedCasks do
-  it_behaves_like "parseable arguments", argv: ["foo"]
+  it_behaves_like "parseable arguments"
 end
diff --git a/Library/Homebrew/test/dev-cmd/cat_spec.rb b/Library/Homebrew/test/dev-cmd/cat_spec.rb
index b00cd32f81..b3789b8856 100644
--- a/Library/Homebrew/test/dev-cmd/cat_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/cat_spec.rb
@@ -4,7 +4,7 @@ require "cmd/shared_examples/args_parse"
 require "dev-cmd/cat"
 
 RSpec.describe Homebrew::DevCmd::Cat do
-  it_behaves_like "parseable arguments", argv: ["foo"]
+  it_behaves_like "parseable arguments"
 
   it "prints the content of a given Formula", :integration_test do
     formula_file = setup_test_formula "testball"
diff --git a/Library/Homebrew/test/dev-cmd/command_spec.rb b/Library/Homebrew/test/dev-cmd/command_spec.rb
index 1ea4ef9265..d5751e5dd4 100644
--- a/Library/Homebrew/test/dev-cmd/command_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/command_spec.rb
@@ -4,7 +4,7 @@ require "cmd/shared_examples/args_parse"
 require "dev-cmd/command"
 
 RSpec.describe Homebrew::DevCmd::Command do
-  it_behaves_like "parseable arguments", argv: ["foo"]
+  it_behaves_like "parseable arguments"
 
   it "returns the file for a given command", :integration_test do
     expect { brew "command", "info" }
diff --git a/Library/Homebrew/test/dev-cmd/create_spec.rb b/Library/Homebrew/test/dev-cmd/create_spec.rb
index 35e16e78c3..f1cd4b526a 100644
--- a/Library/Homebrew/test/dev-cmd/create_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/create_spec.rb
@@ -7,7 +7,7 @@ RSpec.describe Homebrew::DevCmd::Create do
   let(:url) { "file://#{TEST_FIXTURE_DIR}/tarballs/testball-0.1.tbz" }
   let(:formula_file) { CoreTap.instance.new_formula_path("testball") }
 
-  it_behaves_like "parseable arguments", argv: ["foo"]
+  it_behaves_like "parseable arguments"
 
   it "creates a new Formula file for a given URL", :integration_test do
     brew "create", "--set-name=Testball", url, "HOMEBREW_EDITOR" => "/bin/cat"
diff --git a/Library/Homebrew/test/dev-cmd/dispatch-build-bottle_spec.rb b/Library/Homebrew/test/dev-cmd/dispatch-build-bottle_spec.rb
index 64ccb1b353..84c329bc3b 100644
--- a/Library/Homebrew/test/dev-cmd/dispatch-build-bottle_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/dispatch-build-bottle_spec.rb
@@ -4,5 +4,5 @@ require "cmd/shared_examples/args_parse"
 require "dev-cmd/dispatch-build-bottle"
 
 RSpec.describe Homebrew::DevCmd::DispatchBuildBottle do
-  it_behaves_like "parseable arguments", argv: ["foo"]
+  it_behaves_like "parseable arguments"
 end
diff --git a/Library/Homebrew/test/dev-cmd/extract_spec.rb b/Library/Homebrew/test/dev-cmd/extract_spec.rb
index 9643529ddc..f6e6104255 100644
--- a/Library/Homebrew/test/dev-cmd/extract_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/extract_spec.rb
@@ -4,7 +4,7 @@ require "cmd/shared_examples/args_parse"
 require "dev-cmd/extract"
 
 RSpec.describe Homebrew::DevCmd::Extract do
-  it_behaves_like "parseable arguments", argv: ["foo", "bar"]
+  it_behaves_like "parseable arguments"
 
   context "when extracting a formula" do
     let!(:target) do
diff --git a/Library/Homebrew/test/dev-cmd/formula_spec.rb b/Library/Homebrew/test/dev-cmd/formula_spec.rb
index 722580631d..59acf64bfa 100644
--- a/Library/Homebrew/test/dev-cmd/formula_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/formula_spec.rb
@@ -4,7 +4,7 @@ require "cmd/shared_examples/args_parse"
 require "dev-cmd/formula"
 
 RSpec.describe Homebrew::DevCmd::FormulaCmd do
-  it_behaves_like "parseable arguments", argv: ["foo"]
+  it_behaves_like "parseable arguments"
 
   it "prints a given Formula's path", :integration_test do
     formula_file = setup_test_formula "testball"
diff --git a/Library/Homebrew/test/dev-cmd/pr-publish_spec.rb b/Library/Homebrew/test/dev-cmd/pr-publish_spec.rb
index 5c643b6a58..66384ab898 100644
--- a/Library/Homebrew/test/dev-cmd/pr-publish_spec.rb
+++ b/Library/Homebrew/test/dev-cmd/pr-publish_spec.rb
@@ -4,5 +4,5 @@ require "cmd/shared_examples/args_parse"
 require "dev-cmd/pr-publish"
 
 RSpec.describe Homebrew::DevCmd::PrPublish do
-  it_behaves_like "parseable arguments", argv: ["foo"]
+  it_behaves_like "parseable arguments"
 end