renaming to_mom tests and improve guard

test/vool/to_mom/test_if_simple.rb

@@ -0,0 +1,27 @@
+
+require_relative "helper"
+
+module Vool
+  class TestSimpleIfMom < MiniTest::Test
+    include MomCompile
+
+    def setup
+      Risc.machine.boot
+      @stats = compile_first_method( "if(@a) ; 5.mod4 ; else; 4.mod4 ; end")
+      @first = @stats.first
+    end
+
+    def test_if_compiles_as_array
+      assert_equal Mom::IfStatement , @first.class , @stats
+    end
+    def test_condition_compiles_to_check
+      assert_equal Mom::TruthCheck , @first.condition.class , @stats
+    end
+    def test_condition_is_instance
+      assert_equal Vool::InstanceVariable , @first.condition.condition.class , @stats
+    end
+    def test_nothing_hoisted
+      assert_nil @first.hoisted , @stats
+    end
+  end
+end