clearer organization for compiler tests

was slightly messy with small/large
now needed different test for expression and statements

test/compiler/expressions/test_field_access.rb

@@ -0,0 +1,46 @@
+require_relative "compiler_helper"
+
+module Virtual
+  class TestFields < MiniTest::Test
+    include CompilerHelper
+
+    def setup
+      Virtual.machine.boot
+    end
+
+    def test_field_not_defined
+      @root = :field_access
+      @string_input = <<HERE
+self.a
+HERE
+      assert_raises(RuntimeError) { check }
+    end
+
+    def test_field
+      Virtual.machine.space.get_class_by_name(:Object).object_layout.add_instance_variable(:bro)
+      @root = :field_access
+      @string_input = <<HERE
+self.bro
+HERE
+      @output = Register::RegisterValue
+      check
+    end
+
+    def test_local
+      Virtual.machine.space.get_main.ensure_local(:bar , :Integer)
+      @root = :name
+      @string_input    = 'bar '
+      @output = Register::RegisterValue
+      check
+    end
+
+    def test_args
+      Virtual.machine.space.get_main.arguments.push Parfait::Variable.new(:Integer , :bar)
+      @root = :name
+      @string_input    = 'bar '
+      @output = Register::RegisterValue
+      check
+    end
+
+  end
+end