5 files changed, 76 insertions, 1 deletions
diff --git a/spec/ruby/optional/capi/fixtures/class.rb b/spec/ruby/optional/capi/fixtures/class.rb
index de824b3ab0..b463e3b4c3 100644
--- a/spec/ruby/optional/capi/fixtures/class.rb
+++ b/spec/ruby/optional/capi/fixtures/class.rb
@@ -15,6 +15,16 @@ class CApiClassSpecs
     end
   end
 
+  class KeywordAlloc
+    attr_reader :initialized, :args, :kwargs
+
+    def initialize(*args, **kwargs)
+      @initialized = true
+      @args = args
+      @kwargs = kwargs
+    end
+  end
+
   class Attr
     def initialize
       @foo, @bar, @baz = 1, 2, 3
@@ -68,15 +78,27 @@ class CApiClassSpecs
 
   class SubSub < Sub
     def call_super_method
-      :subclass_method
+      :subsubclass_method
+    end
+  end
+
+  class SuperSelf
+    def call_super_method
+      self
     end
   end
 
+  class SubSelf < SuperSelf
+  end
+
   class A
     C = 1
     autoload :D, File.expand_path('../path_to_class.rb', __FILE__)
 
     class B
     end
+
+    module M
+    end
   end
 end
diff --git a/spec/ruby/optional/capi/fixtures/kernel.rb b/spec/ruby/optional/capi/fixtures/kernel.rb
new file mode 100644
index 0000000000..d3fc7c57e8
--- /dev/null
+++ b/spec/ruby/optional/capi/fixtures/kernel.rb
@@ -0,0 +1,19 @@
+class CApiKernelSpecs
+  class ClassWithPublicMethod
+    def public_method(*, **)
+      :public
+    end
+  end
+
+  class ClassWithPrivateMethod
+    private def private_method(*, **)
+      :private
+    end
+  end
+
+  class ClassWithProtectedMethod
+    protected def protected_method(*, **)
+      :protected
+    end
+  end
+end
diff --git a/spec/ruby/optional/capi/fixtures/module.rb b/spec/ruby/optional/capi/fixtures/module.rb
index ba90eb7181..aac8bfbfb3 100644
--- a/spec/ruby/optional/capi/fixtures/module.rb
+++ b/spec/ruby/optional/capi/fixtures/module.rb
@@ -13,6 +13,10 @@ class CApiModuleSpecs
     autoload :D, File.expand_path('../const_get.rb', __FILE__)
 
     X = 1
+    Q = 1
+    R = 2
+    S = 3
+    T = 5
   end
 
   class B < A
diff --git a/spec/ruby/optional/capi/fixtures/object.rb b/spec/ruby/optional/capi/fixtures/object.rb
new file mode 100644
index 0000000000..a59f2309d8
--- /dev/null
+++ b/spec/ruby/optional/capi/fixtures/object.rb
@@ -0,0 +1,29 @@
+class CApiObjectSpecs
+  class IVars
+    def initialize
+      @a = 3
+      @b = 7
+      @c = 4
+    end
+
+    def self.set_class_variables
+      @@foo = :a
+      @@bar = :b
+      @@baz = :c
+    end
+  end
+
+  module MVars
+    @@mvar = :foo
+    @@mvar2 = :bar
+
+    @ivar = :baz
+  end
+
+  module CVars
+    @@cvar = :foo
+    @@cvar2 = :bar
+
+    @ivar = :baz
+  end
+end
diff --git a/spec/ruby/optional/capi/fixtures/read.txt b/spec/ruby/optional/capi/fixtures/read.txt
new file mode 100644
index 0000000000..f7065a35d0
--- /dev/null
+++ b/spec/ruby/optional/capi/fixtures/read.txt
@@ -0,0 +1 @@
+fixture file contents to test read() with RSTRING_PTR