[rubygems/rubygems] Bundler::YAMLSerializer.load couldn't raise error when invalid yaml was provided

https://github.com/rubygems/rubygems/commit/cfcfde04c7

lib/rubygems/config_file.rb

@@ -521,51 +521,46 @@ if you believe they were disclosed to a third party.
     Bundler::YAMLSerializer.dump(content)
   end
 
-  def self.load_with_rubygems_config_hash(hash)
+  def self.load_with_rubygems_config_hash(yaml)
     require "bundler/yaml_serializer"
 
-    content = Bundler::YAMLSerializer.load(hash)
+    content = Bundler::YAMLSerializer.load(yaml)
 
-    if content.is_a? Hash
-      content.transform_keys! do |k|
-        if k.match?(/\A:(.*)\Z/)
-          k[1..-1].to_sym
-        elsif k.include?("__")
-          if k.is_a?(Symbol)
-            k.to_s.gsub(/__/,".").gsub(%r{/\Z}, "").to_sym
-          else
-            k.dup.gsub(/__/,".").gsub(%r{/\Z}, "")
-          end
+    content.transform_keys! do |k|
+      if k.match?(/\A:(.*)\Z/)
+        k[1..-1].to_sym
+      elsif k.include?("__")
+        if k.is_a?(Symbol)
+          k.to_s.gsub(/__/,".").gsub(%r{/\Z}, "").to_sym
         else
-          k
+          k.dup.gsub(/__/,".").gsub(%r{/\Z}, "")
         end
+      else
+        k
       end
+    end
 
-      content.transform_values! do |v|
-        if v.is_a?(String)
-          if v.match?(/\A:(.*)\Z/)
-            v[1..-1].to_sym
-          elsif v.match?(/\A[+-]?\d+\Z/)
-            v.to_i
-          elsif v.match?(/\Atrue|false\Z/)
-            v == "true"
-          elsif v.empty?
-            nil
-          else
-            v
-          end
-        elsif v.is_a?(Hash) && v.empty?
+    content.transform_values! do |v|
+      if v.is_a?(String)
+        if v.match?(/\A:(.*)\Z/)
+          v[1..-1].to_sym
+        elsif v.match?(/\A[+-]?\d+\Z/)
+          v.to_i
+        elsif v.match?(/\Atrue|false\Z/)
+          v == "true"
+        elsif v.empty?
           nil
         else
           v
         end
+      elsif v.is_a?(Hash) && v.empty?
+        nil
+      else
+        v
       end
-
-      content
-    else
-      warn "Failed to load #{filename} because it doesn't contain valid YAML hash"
-      {}
     end
+
+    content
   end
 
   private

spec/bundler/bundler/friendly_errors_spec.rb

@@ -5,29 +5,6 @@ require "bundler/friendly_errors"
 require "cgi"
 
 RSpec.describe Bundler, "friendly errors" do
-  context "with invalid YAML in .gemrc" do
-    before do
-      File.open(home(".gemrc"), "w") do |f|
-        f.write "invalid: yaml: hah"
-      end
-    end
-
-    after do
-      FileUtils.rm(home(".gemrc"))
-    end
-
-    it "reports a relevant friendly error message" do
-      gemfile <<-G
-        source "#{file_uri_for(gem_repo1)}"
-        gem "rack"
-      G
-
-      bundle :install, :env => { "DEBUG" => "true" }
-
-      expect(err).to include("Failed to load #{home(".gemrc")}")
-    end
-  end
-
   it "calls log_error in case of exception" do
     exception = Exception.new
     expect(Bundler::FriendlyErrors).to receive(:exit_status).with(exception).and_return(1)

test/rubygems/test_gem_config_file.rb

@@ -465,21 +465,6 @@ if you believe they were disclosed to a third party.
     assert_equal %w[http://even-more-gems.example.com], Gem.sources
   end
 
-  def test_ignore_invalid_config_file
-    File.open @temp_conf, "w" do |fp|
-      fp.puts "invalid: yaml:"
-    end
-
-    begin
-      verbose = $VERBOSE
-      $VERBOSE = nil
-
-      util_config_file
-    ensure
-      $VERBOSE = verbose
-    end
-  end
-
   def test_load_ssl_verify_mode_from_config
     File.open @temp_conf, "w" do |fp|
       fp.puts ":ssl_verify_mode: 1"