From 80726b2217eb43a094101377c4273b7b2fdf4833 Mon Sep 17 00:00:00 2001
From: Lars Kanis <lars@greiz-reinsdorf.de>
Date: Thu, 20 Apr 2023 10:26:48 +0200
Subject: Add a spec file for FFI::DynamicLibrary

.. and test Ractor compatibility there.
---
 spec/ffi/dynamic_library_spec.rb | 56 ++++++++++++++++++++++++++++++++++++++++
 spec/ffi/fixtures/compile.rb     |  2 +-
 spec/ffi/library_spec.rb         | 17 ------------
 3 files changed, 57 insertions(+), 18 deletions(-)
 create mode 100644 spec/ffi/dynamic_library_spec.rb

diff --git a/spec/ffi/dynamic_library_spec.rb b/spec/ffi/dynamic_library_spec.rb
new file mode 100644
index 0000000..a6ea2a9
--- /dev/null
+++ b/spec/ffi/dynamic_library_spec.rb
@@ -0,0 +1,56 @@
+#
+# This file is part of ruby-ffi.
+# For licensing, see LICENSE.SPECS
+#
+
+require File.expand_path(File.join(File.dirname(__FILE__), "spec_helper"))
+
+describe FFI::DynamicLibrary do
+  it "should be shareable for Ractor", :ractor do
+    libtest = FFI::DynamicLibrary.open(TestLibrary::PATH,
+        FFI::DynamicLibrary::RTLD_LAZY | FFI::DynamicLibrary::RTLD_GLOBAL)
+    Ractor.make_shareable(libtest)
+
+    res = Ractor.new(libtest) do |libtest2|
+      libtest2.find_symbol("testClosureVrV").address
+    end.take
+
+    expect( res ).to be > 0
+  end
+
+  it "load a library in a Ractor", :ractor do
+    res = Ractor.new do
+      libtest = FFI::DynamicLibrary.open(TestLibrary::PATH,
+          FFI::DynamicLibrary::RTLD_LAZY | FFI::DynamicLibrary::RTLD_GLOBAL)
+      libtest.find_symbol("testClosureVrV")
+    end.take
+
+    expect(res.address).to be > 0
+  end
+
+  it "has a memsize function", skip: RUBY_ENGINE != "ruby" do
+    base_size = ObjectSpace.memsize_of(Object.new)
+
+    libtest = FFI::DynamicLibrary.open(TestLibrary::PATH,
+        FFI::DynamicLibrary::RTLD_LAZY | FFI::DynamicLibrary::RTLD_GLOBAL)
+    size = ObjectSpace.memsize_of(libtest)
+    expect(size).to be > base_size
+  end
+
+  describe Symbol do
+    before do
+      @libtest = FFI::DynamicLibrary.open(
+        TestLibrary::PATH,
+        FFI::DynamicLibrary::RTLD_LAZY | FFI::DynamicLibrary::RTLD_GLOBAL,
+      )
+    end
+
+    it "has a memsize function", skip: RUBY_ENGINE != "ruby" do
+      base_size = ObjectSpace.memsize_of(Object.new)
+
+      symbol = @libtest.find_symbol("gvar_gstruct_set")
+      size = ObjectSpace.memsize_of(symbol)
+      expect(size).to be > base_size
+    end
+  end
+end
diff --git a/spec/ffi/fixtures/compile.rb b/spec/ffi/fixtures/compile.rb
index 58ee561..2be97cb 100644
--- a/spec/ffi/fixtures/compile.rb
+++ b/spec/ffi/fixtures/compile.rb
@@ -69,5 +69,5 @@ module TestLibrary
     lib
   end
 
-  PATH = compile_library(".", "libtest.#{FFI::Platform::LIBSUFFIX}")
+  PATH = FFI.make_shareable(compile_library(".", "libtest.#{FFI::Platform::LIBSUFFIX}"))
 end
diff --git a/spec/ffi/library_spec.rb b/spec/ffi/library_spec.rb
index a17d673..5b806bb 100644
--- a/spec/ffi/library_spec.rb
+++ b/spec/ffi/library_spec.rb
@@ -322,21 +322,4 @@ describe "Library" do
       expect(val[:data]).to eq(i)
     end
   end
-
-  describe "Symbol" do
-    before do
-      @libtest = FFI::DynamicLibrary.open(
-        TestLibrary::PATH,
-        FFI::DynamicLibrary::RTLD_LAZY | FFI::DynamicLibrary::RTLD_GLOBAL,
-      )
-    end
-
-    it "has a memsize function", skip: RUBY_ENGINE != "ruby" do
-      base_size = ObjectSpace.memsize_of(Object.new)
-
-      symbol = @libtest.find_symbol("gvar_gstruct_set")
-      size = ObjectSpace.memsize_of(symbol)
-      expect(size).to be > base_size
-    end
-  end
 end
-- 
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