Merge pull request rubyapi#2440: Fix missing parents when superclass is namespaced

Preserve fully qualified superclass constants during documentation generation and cover the association with a parser-backed regression test.

Author: colby-swandale

lib/rubyapi_rdoc_generator.rb

@@ -166,7 +166,7 @@ def superclass_for_doc(doc)
     if doc.superclass.is_a?(String)
       doc.superclass
     else
-      doc.superclass.name
+      doc.superclass.full_name
     end
   end
 end

test/fixtures/doc/namespaced_superclass.rb

@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+module Namespaced
+  class Parent
+  end
+
+  class Child < Parent
+  end
+end

test/lib/rubyapi_rdoc_generator_test.rb

@@ -0,0 +1,29 @@
+# frozen_string_literal: true
+
+require "test_helper"
+
+class RubyAPIRDocGeneratorTest < ActiveSupport::TestCase
+  test "namespaced superclass association" do
+    document "namespaced_superclass.rb"
+    object = RubyObject.find_by!(constant: "Namespaced::Child")
+
+    assert_equal "Namespaced::Parent", object.superclass_constant
+    assert_equal RubyObject.find_by!(constant: "Namespaced::Parent"), object.superclass
+  end
+
+  private
+
+  def document(filename)
+    opts = RDoc::Options.load_options.tap do |options|
+      options.generator = RubyAPIRDocGenerator
+      options.generator_options = [ RubyRelease.new(version: "test", signatures: false) ]
+      options.root = Rails.root.join("test/fixtures/doc").to_s
+      options.files = [ Rails.root.join("test/fixtures/doc", filename).to_s ]
+      options.op_dir = Rails.root.join("tmp/rdoc_test").to_s
+      options.visibility = :private
+      options.verbosity = 0
+      options.template = ""
+    end
+    RDoc::RDoc.new.document(opts)
+  end
+end