Require Memcached adapter; add test

coverband.gemspec

@@ -54,6 +54,7 @@ Gem::Specification.new do |spec|
   # minitest-profile is not compatible with Rails 7.1.0 setup... dropping it for now
   # spec.add_development_dependency "minitest-profile"
   spec.add_development_dependency "webmock"
+  spec.add_development_dependency "dalli" # Default memcached adapter
 
   # TODO: Remove when other production adapters exist
   # because the default configuration of redis store, we really do require

lib/coverband.rb

@@ -14,6 +14,7 @@
 require "coverband/adapters/file_store"
 require "coverband/adapters/stdout_store"
 require "coverband/adapters/null_store"
+require "coverband/adapters/memcached_store"
 require "coverband/utils/file_hasher"
 require "coverband/collectors/coverage"
 require "coverband/collectors/abstract_tracker"

test/coverband/adapters/memecached_store_test.rb

@@ -0,0 +1,26 @@
+# frozen_string_literal: true
+
+require File.expand_path("../../test_helper", File.dirname(__FILE__))
+
+if ENV["COVERBAND_MEMCACHED"]
+  require "active_support"
+  require "dalli"
+
+  class MemcachedTest < Minitest::Test
+    def setup
+      super
+      @store = Coverband::Adapters::MemcachedStore.new(ActiveSupport::Cache::MemCacheStore.new)
+    end
+
+    def test_coverage
+      @store.clear!
+      mock_file_hash
+      expected = basic_coverage
+      @store.save_report(expected)
+      assert_equal expected.keys, @store.coverage.keys
+      @store.coverage.each_pair do |key, data|
+        assert_equal expected[key], data["data"]
+      end
+    end
+  end
+end