fixes missing string tests and expression/transformation

test/runners/hello.rb

@@ -0,0 +1 @@
+puts( "hello world" )

test/test_ast.rb

@@ -32,6 +32,15 @@ class TestAst < MiniTest::Test
     check
   end
 
+  def test_string
+    @input    = <<HERE
+"hello" 
+HERE
+    @expected =  Parser::StringExpression.new('hello')
+    @parser = @parser.string
+    check
+  end
+
   def test_one_argument
     @input    = '(42)'
     @expected = { :argument_list => Parser::IntegerExpression.new(42) }

test/test_parser.rb

@@ -45,6 +45,15 @@ class ParserTest < MiniTest::Test
     check
   end
 
+  def test_string
+    @input    = <<HERE
+"hello" 
+HERE
+    @expected =  {:string=>"hello"}
+    @parser = @parser.string
+    check
+  end
+
   def test_one_argument
     @input    = '(42)'
     @expected = {:argument_list => {:argument => {:integer => '42'}} }
@@ -70,6 +79,18 @@ class ParserTest < MiniTest::Test
     check
   end
 
+  def test_function_call_string
+    @input    = <<HERE
+    puts( "hello")
+HERE
+    @expected = {:function_call => {:name => 'baz' },
+                :argument_list    => [{:argument => {:integer => '42'}},
+                             {:argument => {:name => 'foo'}}]}
+
+    @parser = @parser.function_call
+    check
+  end
+
   def test_expression_else
     @input    = <<HERE
 4

test/test_runner.rb

@@ -25,6 +25,8 @@ class TestRunner < MiniTest::Test
     #link
     # execute
     # check result ?
+    puts string
+    puts " "
     puts tree.inspect
   end
 

test/test_transform.rb

@@ -26,6 +26,13 @@ class TransformTest <  MiniTest::Test
     check
   end
 
+  def test_string
+    @input    =  {:string=>"hello"}
+    @expected =  Parser::StringExpression.new('hello')
+    @parser = @parser.string
+    check
+  end
+
   def test_argument_list
     @input    = {:argument_list => [{:argument => {:integer => '42'}},
                           {:argument => {:name   => 'foo'}}]}