Fix incorrect bundled gems warning for hyphenated gem names

When requiring a file like "benchmark/ips", the warning system would
incorrectly warn about the "benchmark" gem not being a default gem,
even when the user has "benchmark-ips" (a separate third-party gem)
in their Gemfile.

The fix checks if a hyphenated version of the require path exists in
the bundle specs before issuing a warning. For example, requiring
"benchmark/ips" now checks for both "benchmark" and "benchmark-ips"
in the Gemfile.

[Bug #21828]

1 files changed, 13 insertions, 0 deletions

diff --git a/test/test_bundled_gems.rb b/test/test_bundled_gems.rb
index 19546dd296..6e25df9b01 100644
--- a/test/test_bundled_gems.rb
+++ b/test/test_bundled_gems.rb
@@ -32,4 +32,17 @@ class TestBundlerGem < Gem::TestCase
     assert Gem::BUNDLED_GEMS.warning?(path, specs: {})
     assert_nil Gem::BUNDLED_GEMS.warning?(path, specs: {})
   end
+
+  def test_no_warning_for_hyphenated_gem
+    # When benchmark-ips gem is in specs, requiring "benchmark/ips" should not warn
+    # about the benchmark gem (Bug #21828)
+    assert_nil Gem::BUNDLED_GEMS.warning?("benchmark/ips", specs: {"benchmark-ips" => true})
+  end
+
+  def test_warning_without_hyphenated_gem
+    # When benchmark-ips is NOT in specs, requiring "benchmark/ips" should warn
+    warning = Gem::BUNDLED_GEMS.warning?("benchmark/ips", specs: {})
+    assert warning
+    assert_match(/benchmark/, warning)
+  end
 end