1 files changed, 52 insertions, 0 deletions
diff --git a/test/inlinetest.rb b/test/inlinetest.rb
new file mode 100644
index 0000000000..cd1ee0c683
--- /dev/null
+++ b/test/inlinetest.rb
@@ -0,0 +1,52 @@
+module InlineTest
+  def loadtest(libname)
+    in_critical do
+      in_progname(libpath(libname)) do
+	Kernel.load(libname)
+      end
+    end
+  end
+  module_function :loadtest
+
+  def loadtest__END__part(libname)
+    program = File.open(libpath(libname)) { |f| f.read }
+    mainpart, endpart = program.split(/^__END__$/)
+    if endpart.nil?
+      raise RuntimeError.new("No __END__ part in the library '#{filename}'")
+    end
+    require(libname)
+    eval(endpart)
+  end
+  module_function :loadtest__END__part
+
+  def self.in_critical
+    th_criticality = Thread.critical
+    Thread.critical = true
+    begin
+      yield
+    ensure
+      Thread.critical = th_criticality
+    end
+  end
+
+  def self.in_progname(progname)
+    progname_backup = $0.dup
+    $0.replace(progname)
+    begin
+      yield
+    ensure
+      $0.replace(progname_backup)
+    end
+  end
+
+  def self.libpath(libname)
+    libpath = nil
+    $:.find do |path|
+      File.file?(testname = File.join(path, libname)) && libpath = testname
+    end
+    if libpath.nil?
+      raise RuntimeError.new("'#{libname}' not found")
+    end
+    libpath
+  end
+end