start testing the previous runners more rigourusly

test/fragments/helper.rb

@@ -0,0 +1,43 @@
+require_relative '../helper'
+
+#test the generation of code fragments. 
+# ie parse                assumes @string_input
+#   compile
+#   assemble/write        assume a @should array with the bytes in it
+
+module Fragments
+  # need a code generator, for arm 
+  def setup
+    @program = Vm::Program.new "Arm"
+  end
+
+  def parse 
+    parser = Parser::Crystal.new
+    syntax  = parser.parse_with_debug(@string_input)
+    parts   = Parser::Transform.new.apply(syntax)
+    # file is a list of expressions, all but the last must be a function
+    # and the last is wrapped as a main
+    parts.each_with_index do |part,index|
+      if index == (parts.length - 1)
+        expr    = part.compile( @program.context , @program.main )
+      else
+        expr    = part.compile( @program.context ,  nil )
+        raise "should be function definition for now" unless expr.is_a? Vm::Function
+      end
+    end
+  end
+
+  # helper to write the file
+  def write name
+    writer = Elf::ObjectWriter.new(@program , Elf::Constants::TARGET_ARM)
+    assembly = writer.text
+    # use this for getting the bytes to compare to :  
+    #puts assembly
+    writer.save("#{name}_test.o")
+    assembly.text.bytes.each_with_index do |byte , index|
+      is = @should[index]
+      assert_equal  Fixnum , is.class , "@#{index.to_s(16)} = #{is}"
+      assert_equal  byte , is  , "@#{index.to_s(16)} #{byte.to_s(16)} != #{is.to_s(16)}"
+    end
+  end
+end

test/fragments/test_hello.rb

@@ -0,0 +1,16 @@
+require_relative 'helper'
+require 'parslet/convenience'
+
+class TestHello < MiniTest::Test
+  include Fragments
+
+  def test_hello
+    @string_input = <<HERE
+    putstring( "Hello Raisa, I am crystksdfkljsncjncn" )
+HERE
+    @should = [0x0,0xb0,0xa0,0xe3,0xe,0x0,0x2d,0xe9,0x28,0x0,0xaf,0xe3,0x2,0x0,0x0,0xeb,0xe,0x0,0xbd,0xe8,0x1,0x70,0xa0,0xe3,0x0,0x0,0x0,0xef,0x0,0x40,0x2d,0xe9,0x1,0x20,0xa0,0xe1,0x0,0x10,0xa0,0xe1,0x1,0x0,0xa0,0xe3,0x4,0x70,0xa0,0xe3,0x0,0x0,0x0,0xef,0x0,0x80,0xbd,0xe8,0x48,0x65,0x6c,0x6c,0x6f,0x20,0x52,0x61,0x69,0x73,0x61,0x2c,0x20,0x49,0x20,0x61,0x6d,0x20,0x63,0x72,0x79,0x73,0x74,0x6b,0x73,0x64,0x66,0x6b,0x6c,0x6a,0x73,0x6e,0x63,0x6a,0x6e,0x63,0x6e,0x0,0x0,0x0]
+    parse 
+    write "hello"
+  end
+end
+