extract the ruby from mains tests

move up in directory
in preparation for arm tests

test/mains/adds.rb

@@ -0,0 +1,7 @@
+a = 0
+b = 20
+while( a < b )
+  a = a + 1
+  b = b - 1
+end
+return a

test/mains/fibo.rb

@@ -0,0 +1,11 @@
+n = 6
+a = 0
+b = 1
+i = 1
+while( i < n )
+  result = a + b
+  a = b
+  b = result
+  i = i + 1
+end
+return result

test/mains/helper.rb

@@ -4,5 +4,10 @@ module Mains
   class MainsTest < MiniTest::Test
     include Risc::Ticker
     def setup;end
+
+    def run_main_file(file)
+      input = File.read("test/mains/#{file}.rb")
+      run_main(input)
+    end
   end
 end

test/mains/subs.rb

@@ -0,0 +1,5 @@
+b = 10
+while( b >= 1 )
+  b = b - 1
+end
+return b

test/mains/test_adds.rb

@@ -0,0 +1,19 @@
+require_relative 'helper'
+
+module Mains
+  class TestAdds < MainsTest
+
+    def test_ruby_adds
+      run_main_file "adds"
+      assert_equal 10 , get_return
+    end
+    def test_ruby_subs
+      run_main_file "subs"
+      assert_equal 0 , get_return
+    end
+    def test_ruby_adds_fibo
+      run_main_file "fibo"
+      assert_equal 8 , get_return
+    end
+  end
+end

test/risc/mains/test_adds.rb

@@ -1,45 +0,0 @@
-require_relative 'helper'
-
-module Mains
-  class TestAdds < MainsTest
-
-    def test_ruby_adds
-      run_main <<HERE
-        a = 0
-        b = 20
-        while( a < b )
-          a = a + 1
-          b = b - 1
-        end
-        return a
-HERE
-      assert_equal 10 , get_return
-    end
-    def test_ruby_subs
-      run_main <<HERE
-        b = 10
-        while( b >= 1 )
-          b = b - 1
-        end
-        return b
-HERE
-      assert_equal 0 , get_return
-    end
-    def test_ruby_adds_fibo
-      run_main <<HERE
-        n = 6
-        a = 0
-        b = 1
-        i = 1
-        while( i < n )
-          result = a + b
-          a = b
-          b = result
-          i = i + 1
-        end
-      	return result
-HERE
-      assert_equal 8 , get_return
-    end
-  end
-end