test/term_test.rb in polynomials-0.1.7 vs test/term_test.rb in polynomials-0.2.0

@@ -22,6 +22,18 @@
 
   def  test_parsing_variable_omitted
     assert_equal 6, Term.parse('6').coefficient
     assert_equal 0, Term.parse('6').exponent
   end
+
+  def test_invalid_string_raises_not_parsable_error
+    ['6x^ -5', '6^20',  '2 2', 'xx', '2 ^ x'].each do |not_parsable_string|
+      assert_raises NotParsableError do
+        term = Term.parse not_parsable_string
+      end
+    end
+  end
+
+  def testing_to_s
+    assert_equal "+ 6 ", Term.parse('6').to_s
+  end
 end