test: cover PolicyTestArticlePolicy, edit? and RateLimiterDslTest

test/test_rate_limiter_memory_store.rb

@@ -0,0 +1,53 @@
+require 'minitest/autorun'
+require 'prism'
+
+class RateLimiterMemoryStoreTest < Minitest::Test
+  def setup
+    @store = Prism::RateLimiter::MemoryStore.new
+  end
+
+  def test_count_increments_within_the_same_window
+    assert_equal 1, @store.count('ip:1', 60)
+    assert_equal 2, @store.count('ip:1', 60)
+    assert_equal 3, @store.count('ip:1', 60)
+  end
+
+  def test_count_is_independent_per_key
+    assert_equal 1, @store.count('ip:1', 60)
+    assert_equal 1, @store.count('ip:2', 60)
+  end
+
+  def test_count_resets_after_the_window_elapses
+    assert_equal 1, @store.count('ip:1', 0.05)
+    assert_equal 2, @store.count('ip:1', 0.05)
+    sleep 0.08
+    assert_equal 1, @store.count('ip:1', 0.05)
+  end
+
+  def test_banned_is_false_when_never_banned
+    refute @store.banned?('ip:1')
+  end
+
+  def test_ban_makes_banned_true_until_it_expires
+    @store.ban!('ip:1', 0.05)
+    assert @store.banned?('ip:1')
+    sleep 0.08
+    refute @store.banned?('ip:1')
+  end
+
+  def test_reset_clears_windows_and_bans
+    @store.count('ip:1', 60)
+    @store.ban!('ip:2', 60)
+    @store.reset!
+    assert_equal 1, @store.count('ip:1', 60)
+    refute @store.banned?('ip:2')
+  end
+
+  def test_concurrent_increments_do_not_lose_updates
+    threads = Array.new(20) do
+      Thread.new { 100.times { @store.count('shared', 60) } }
+    end
+    threads.each(&:join)
+    assert_equal 2001, @store.count('shared', 60)
+  end
+end