add vool hashes

test/vool/test_compiler.rb

@@ -2,4 +2,5 @@ require_relative "helper"
 require_relative "test_array_statement"
 require_relative "test_basic_values"
 require_relative "test_class_statement"
+require_relative "test_hash_statement"
 require_relative "test_method_statement"

test/vool/test_hash_statement.rb

@@ -0,0 +1,35 @@
+require_relative "../helper"
+
+module Vool
+  class HashArray < MiniTest::Test
+
+    def test_empty
+      lst = Compiler.compile( "{}")
+      assert_equal HashStatement , lst.class
+    end
+    def test_empty_length
+      lst = Compiler.compile( "{}")
+      assert_equal 0 , lst.length
+    end
+    def test_one
+      lst = Compiler.compile( "{ 1 => 2}")
+      assert_equal HashStatement , lst.class
+    end
+    def test_one_length
+      lst = Compiler.compile( "{ 1 => 2}")
+      assert_equal 1 , lst.length
+    end
+    def test_one_pair
+      lst = Compiler.compile( "{ 1 => 2}")
+      assert_equal 1 , lst.hash.keys.first.value
+    end
+    def test_two_length
+      lst = Compiler.compile( "{ sym: :works , 'string_too' => 2}")
+      assert_equal 2 , lst.length
+    end
+    def test_two_key_one
+      lst = Compiler.compile( "{ sym: :works , 'string_too' => 2}")
+      assert_equal :sym , lst.hash.keys.first.value
+    end
+  end
+end