start new elf testing category (and minors)

test/elf/test_all.rb

@@ -0,0 +1 @@
+require_relative "test_hello"

test/elf/test_hello.rb

@@ -0,0 +1,29 @@
+require_relative "compiler_helper"
+
+class HelloTest < MiniTest::Test
+
+  def check
+    machine = Virtual.machine.boot
+    Parfait::Space.object_space.get_class_by_name(:Integer).remove_instance_method :plus
+    #TODO remove this hack: write proper aliases
+    statements = machine.parse_and_compile @string_input
+    output_at = "Register::CallImplementation"
+    #{}"Register::CallImplementation"
+    machine.run_before output_at
+    #puts Sof.write(machine.space)
+    machine.run_after output_at
+    writer = Elf::ObjectWriter.new(machine)
+    writer.save "hello.o"
+  end
+
+  def test_string_put
+    @string_input    = <<HERE
+class Object
+  int main()
+    "Hello again\n".putstring()
+  end
+end
+HERE
+    check
+  end
+end