1 files changed, 27 insertions, 0 deletions
diff --git a/test/rubygems/test_gem_resolver_composed_set.rb b/test/rubygems/test_gem_resolver_composed_set.rb
index 85026f7eb9..f8455e1aa4 100644
--- a/test/rubygems/test_gem_resolver_composed_set.rb
+++ b/test/rubygems/test_gem_resolver_composed_set.rb
@@ -2,6 +2,33 @@ require 'rubygems/test_case'
 
 class TestGemResolverComposedSet < Gem::TestCase
 
+  def test_errors
+    index_set   = Gem::Resolver::IndexSet.new
+    current_set = Gem::Resolver::CurrentSet.new
+
+    set = Gem::Resolver::ComposedSet.new index_set, current_set
+
+    set.instance_variable_get(:@errors) << :a
+    current_set.errors << :b
+
+    assert_includes set.errors, :a
+    assert_includes set.errors, :b
+    assert_includes set.errors, index_set.errors.first
+  end
+
+  def test_prerelease_equals
+    best_set    = Gem::Resolver::BestSet.new
+    current_set = Gem::Resolver::CurrentSet.new
+
+    set = Gem::Resolver::ComposedSet.new best_set, current_set
+
+    set.prerelease = true
+
+    assert set.prerelease
+    assert best_set.prerelease
+    assert current_set.prerelease
+  end
+
   def test_remote_equals
     best_set    = Gem::Resolver::BestSet.new
     current_set = Gem::Resolver::CurrentSet.new