1 files changed, 41 insertions, 0 deletions
diff --git a/test/fiddle/test_fiddle.rb b/test/fiddle/test_fiddle.rb
index 8751d96920..9bddb056c9 100644
--- a/test/fiddle/test_fiddle.rb
+++ b/test/fiddle/test_fiddle.rb
@@ -5,6 +5,13 @@ rescue LoadError
 end
 
 class TestFiddle < Fiddle::TestCase
+  def test_nil_true_etc
+    assert_equal Fiddle::Qtrue, Fiddle.dlwrap(true)
+    assert_equal Fiddle::Qfalse, Fiddle.dlwrap(false)
+    assert_equal Fiddle::Qnil, Fiddle.dlwrap(nil)
+    assert Fiddle::Qundef
+  end
+
   def test_windows_constant
     require 'rbconfig'
     if RbConfig::CONFIG['host_os'] =~ /mswin|mingw/
@@ -14,4 +21,38 @@ class TestFiddle < Fiddle::TestCase
     end
   end
 
+  def test_dlopen_linker_script_input_linux
+    omit("This is only for Linux") unless RUBY_PLATFORM.match?("linux")
+    if Dir.glob("/usr/lib/*/libncurses.so").empty?
+      omit("libncurses.so is needed")
+    end
+    # libncurses.so uses INPUT() on Debian GNU/Linux
+    # $ cat /usr/lib/x86_64-linux-gnu/libncurses.so
+    # INPUT(libncurses.so.6 -ltinfo)
+    handle = Fiddle.dlopen("libncurses.so")
+    begin
+      assert_equal("libncurses.so",
+                   File.basename(handle.file_name, ".*"))
+    ensure
+      handle.close
+    end
+  end
+
+  def test_dlopen_linker_script_group_linux
+    omit("This is only for Linux") unless RUBY_PLATFORM.match?("linux")
+    # libc.so uses GROUP() on Debian GNU/Linux
+    # $ cat /usr/lib/x86_64-linux-gnu/libc.so
+    # /* GNU ld script
+    #    Use the shared library, but some functions are only in
+    #    the static library, so try that secondarily.  */
+    # OUTPUT_FORMAT(elf64-x86-64)
+    # GROUP ( /lib/x86_64-linux-gnu/libc.so.6 /usr/lib/x86_64-linux-gnu/libc_nonshared.a  AS_NEEDED ( /lib64/ld-linux-x86-64.so.2 ) )
+    handle = Fiddle.dlopen("libc.so")
+    begin
+      assert_equal("libc.so",
+                   File.basename(handle.file_name, ".*"))
+    ensure
+      handle.close
+    end
+  end
 end if defined?(Fiddle)