when change len of calculated master, change len of slave too

test/test_option_calculation.py

@@ -373,6 +373,9 @@ def test_callback_multi_value():
     assert cfg.val2 == ['val']
     assert cfg.val3 == ['yes']
     assert cfg.val4 == ['val', 'yes']
+    cfg.val2.append('new')
+    assert cfg.val1 == ['val']
+    assert cfg.val2 == ['val', 'new']
 
 
 def test_callback_multi_list():
@@ -466,6 +469,66 @@ def test_callback_master_and_slaves_slave():
     assert cfg.val1.val2 == ['val2', 'val2', 'val']
 
 
+def test_callback_master_and_slaves_slave_cal():
+    val3 = StrOption('val3', "", multi=True)
+    val1 = StrOption('val1', "", multi=True, callback=return_value, callback_params={'': ((val3, False),)})
+    val2 = StrOption('val2', "", multi=True, callback=return_val)
+    interface1 = OptionDescription('val1', '', [val1, val2])
+    interface1.impl_set_group_type(groups.master)
+    maconfig = OptionDescription('rootconfig', '', [interface1, val3])
+    cfg = Config(maconfig)
+    cfg.read_write()
+    assert cfg.val3 == []
+    assert cfg.val1.val1 == []
+    assert cfg.val1.val2 == []
+    cfg.val1.val1 = ['val1']
+    cfg.val3 = ['val1']
+    assert cfg.val1.val1 == ['val1']
+    assert cfg.val1.val2 == ['val']
+    assert cfg.val1.val1 == ['val1']
+    assert cfg.val1.val2 == ['val']
+    del(cfg.val1.val1)
+    cfg.val1.val2 = ['val']
+    cfg.val3 = ['val1', 'val2']
+    assert cfg.val1.val2 == ['val', 'val']
+    assert cfg.val1.val1 == ['val1', 'val2']
+    cfg.val1.val2 = ['val1', 'val2']
+    cfg.val3.pop(1)
+    # cannot remove slave's value because master is calculated
+    # so raise
+    raises(SlaveError, "cfg.val1.val1")
+    raises(SlaveError, "cfg.val1.val2")
+    cfg.val3 = ['val1', 'val2', 'val3']
+    assert cfg.val1.val2 == ['val1', 'val2', 'val']
+
+
+def test_callback_master_and_slaves_slave_cal2():
+    val3 = StrOption('val3', "", ['val', 'val'], multi=True)
+    val1 = StrOption('val1', "", multi=True, callback=return_value, callback_params={'': ((val3, False),)})
+    val2 = StrOption('val2', "", ['val2', 'val2'], multi=True)
+    interface1 = OptionDescription('val1', '', [val1, val2])
+    interface1.impl_set_group_type(groups.master)
+    maconfig = OptionDescription('rootconfig', '', [interface1, val3])
+    cfg = Config(maconfig)
+    cfg.read_write()
+    assert cfg.val3 == ['val', 'val']
+    assert cfg.val1.val1 == ['val', 'val']
+    assert cfg.val1.val2 == ['val2', 'val2']
+    cfg.val3.pop(1)
+#    # cannot remove slave's value because master is calculated
+#    # so raise
+    raises(SlaveError, "cfg.val1.val1")
+    raises(SlaveError, "cfg.val1.val2")
+    cfg.val3 = ['val', 'val']
+    assert cfg.val3 == ['val', 'val']
+    assert cfg.val1.val1 == ['val', 'val']
+    assert cfg.val1.val2 == ['val2', 'val2']
+    raises(SlaveError, "cfg.val1.val1 = ['val']")
+    assert cfg.val3 == ['val', 'val']
+    assert cfg.val1.val1 == ['val', 'val']
+    assert cfg.val1.val2 == ['val2', 'val2']
+
+
 def test_callback_master_and_slaves_slave_list():
     val1 = StrOption('val1', "", multi=True)
     val2 = StrOption('val2', "", multi=True, callback=return_list)