1 files changed, 30 insertions, 0 deletions
diff --git a/spec/rubocop/cop/gemspec/avoid_executing_git_spec.rb b/spec/rubocop/cop/gemspec/avoid_executing_git_spec.rb
new file mode 100644
index 00000000000..f94a990a2f7
--- /dev/null
+++ b/spec/rubocop/cop/gemspec/avoid_executing_git_spec.rb
@@ -0,0 +1,30 @@
+# frozen_string_literal: true
+
+require 'fast_spec_helper'
+require_relative '../../../../rubocop/cop/gemspec/avoid_executing_git'
+
+RSpec.describe RuboCop::Cop::Gemspec::AvoidExecutingGit do
+  subject(:cop) { described_class.new }
+
+  it 'flags violation for executing git' do
+    expect_offense(<<~RUBY)
+      Gem::Specification.new do |gem|
+        gem.executable    = `git ls-files -- bin/*`.split("\\n").map{ |f| File.basename(f) }
+                            ^^^^^^^^^^^^^^^^^^^^^^^ Do not execute `git` in gemspec.
+        gem.files         = `git ls-files`.split("\\n")
+                            ^^^^^^^^^^^^^^ Do not execute `git` in gemspec.
+        gem.test_files    = `git ls-files -- {test,spec,features}/*`.split("\\n")
+                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Do not execute `git` in gemspec.
+      end
+    RUBY
+  end
+
+  it 'does not flag violation for using a glob' do
+    expect_no_offenses(<<~RUBY)
+      Gem::Specification.new do |gem|
+        gem.files = Dir.glob("lib/**/*.*")
+        gem.test_files = Dir.glob("spec/**/**/*.*")
+      end
+    RUBY
+  end
+end