add unique parameter to option

test/test_multi.py

@@ -24,6 +24,25 @@ def test_multi():
     raises(ConfigError, "multi._getcontext()")
 
 
+def test_multi_unique():
+    i = IntOption('int', '', multi=True, unique=True)
+    o = OptionDescription('od', '', [i])
+    c = Config(o)
+    assert c.int == []
+    c.int = [0]
+    assert c.int == [0]
+    raises(ValueError, "c.int = [0, 0]")
+    raises(ValueError, "c.int = [1, 0, 2, 3, 4, 5, 6, 0, 7]")
+    raises(ValueError, "c.int.append(0)")
+    raises(ValueError, "c.int.extend([1, 2, 1, 3])")
+    raises(ValueError, "c.int.extend([1, 2, 0, 3])")
+    c.int.extend([4, 5, 6])
+
+
+def test_non_multi_unique():
+    raises(ValueError, "IntOption('int', '', unique=True)")
+
+
 def test_multi_none():
     s = StrOption('str', '', multi=True)
     o = OptionDescription('od', '', [s])

test/test_submulti.py

@@ -4,7 +4,7 @@ do_autopath()
 
 from tiramisu.setting import groups, owners
 from tiramisu.config import Config
-from tiramisu.option import StrOption, OptionDescription, submulti
+from tiramisu.option import StrOption, IntOption, OptionDescription, submulti
 from tiramisu.value import SubMulti, Multi
 from tiramisu.error import SlaveError
 
@@ -663,3 +663,19 @@ def test_callback_submulti():
     assert cfg.getowner(multi2) == owners.default
     assert cfg.multi == [['val']]
     assert cfg.multi2 == [['val']]
+
+
+def test_submulti_unique():
+    i = IntOption('int', '', multi=submulti, unique=True)
+    o = OptionDescription('od', '', [i])
+    c = Config(o)
+    assert c.int == []
+    c.int = [[0]]
+    assert c.int == [[0]]
+    raises(ValueError, "c.int = [[0, 0]]")
+    c.int = [[0], [0]]
+    raises(ValueError, "c.int[0] = [1, 0, 2, 3, 4, 5, 6, 0, 7]")
+    raises(ValueError, "c.int[0].append(0)")
+    raises(ValueError, "c.int[0].extend([1, 2, 1, 3])")
+    raises(ValueError, "c.int[0].extend([1, 2, 0, 3])")
+    c.int[0].extend([4, 5, 6])