fix some word with tests

test/parfait/test_word.rb

@@ -0,0 +1,47 @@
+require_relative 'helper'
+
+class TestwordRT < MiniTest::Test
+  include RuntimeTests
+
+  def test_len
+    @string_input = <<HERE
+Word w = " "
+return w.char_length
+HERE
+    check_return 1
+  end
+
+  def test_space
+    @string_input = <<HERE
+Word w = " "
+return w.char_at(1)
+HERE
+    assert_equal 32 , " ".codepoints[0] # just checking
+    check_return 32
+  end
+
+  def test_add_doesnt_change1
+    @string_input = <<HERE
+Word w = " "
+w.push_char(32)
+return w.char_at(1)
+HERE
+    check_return 32
+  end
+  def test_after_add_get_works
+    @string_input = <<HERE
+Word w = " "
+w.push_char(32)
+return w.char_at(2)
+HERE
+    check_return 32
+  end
+  def test_after_add_length_works
+    @string_input = <<HERE
+Word w = " "
+w.push_char(32)
+return w.char_length
+HERE
+    check_return 2
+  end
+end