public void PUT_RemoveAtContract([PexAssumeUnderTest] BinaryHeap.BinaryHeap <int, int> bh, int index)
{
AssumePrecondition.IsTrue(index < bh.Count && index >= 0);
int Old_bhCount = bh.Count;
int Old_bhCapacity = bh.Capacity;
int Old_bhMinimumKey = bh.Count > 0 ? bh.Minimum().Key : PexChoose.Value <int>("old_bhMinimumKey");
int Old_bhMinimumValue = bh.Count > 0 ? bh.Minimum().Value : PexChoose.Value <int>("old_bhMinimumValue");
int Old_index = index;
int Old_Ret_Key = PexChoose.Value <int>("old_Ret_Key");
int Old_Ret_Value = PexChoose.Value <int>("old_Ret_Value");
//code
var ra = bh.RemoveAt(index);
int New_Ret_Key = ra.Key;
int New_Ret_Value = ra.Value;
int New_bhCount = bh.Count;
int New_bhCapacity = bh.Capacity;
int New_bhMinimumKey = bh.Count > 0 ? bh.Minimum().Key : PexChoose.Value <int>("new_bhMinimumKey");
int New_bhMinimumValue = bh.Count > 0 ? bh.Minimum().Value : PexChoose.Value <int>("new_bhMinimumValue");
int New_index = index;
PexObserve.ValueForViewing("$old_bh_count", Old_bhCount);
PexObserve.ValueForViewing("$new_bh_count", New_bhCount);
PexObserve.ValueForViewing("$old_bh_capacity", Old_bhCapacity);
PexObserve.ValueForViewing("$new_bh_capacity", New_bhCapacity);
PexObserve.ValueForViewing("$old_bh_minimum_key", Old_bhMinimumKey);
PexObserve.ValueForViewing("$new_bh_minimum_key", New_bhMinimumKey);
PexObserve.ValueForViewing("$old_bh_minimum_value", Old_bhMinimumValue);
PexObserve.ValueForViewing("$new_bh_minimum_value", New_bhMinimumValue);
PexObserve.ValueForViewing("$old_bh_index", Old_index);
PexObserve.ValueForViewing("$new_bh_index", New_index);
PexObserve.ValueForViewing("$old_ret_key", Old_Ret_Key);
PexObserve.ValueForViewing("$new_ret_key", New_Ret_Key);
PexObserve.ValueForViewing("$old_ret_value", Old_Ret_Value);
PexObserve.ValueForViewing("$new_ret_value", New_Ret_Value);
PexAssert.IsTrue(false);
}
public void PUT_RemoveAtContract([PexAssumeUnderTest] BinaryHeap.BinaryHeap <int, int> bh, int index)
{
AssumePrecondition.IsTrue(index < bh.Count && index >= 0);
int Old_bhCount = bh.Count;
int Old_bhMinimumKey = bh.Minimum().Key;
int Old_bhMinimumValue = bh.Minimum().Value;
int Old_index = index;
//bool Old_removeAtRoot = index == 0;
//code
var ra = bh.RemoveAt(index);
int New_Ret_Key = ra.Key;
int New_Ret_Value = ra.Value;
int New_bhCount = bh.Count;
int New_bhMinimumKey = bh.Count > 0 ? bh.Minimum().Key: PexChoose.Value <int>("new_min_key");
//int New_bhMinimumKey = bh.Count > 0 ? bh.Minimum().Key : Old_bhMinimumKey-1;
int New_bhMinimumValue = bh.Count > 0 ? bh.Minimum().Value : PexChoose.Value <int>("new_min_val");
//int New_bhMinimumValue = bh.Count > 0 ? bh.Minimum().Value : Old_bhMinimumValue - 1;
PexObserve.ValueForViewing("$old_bh_count", Old_bhCount);
PexObserve.ValueForViewing("$new_bh_count", New_bhCount);
PexObserve.ValueForViewing("$old_bh_minimum_key", Old_bhMinimumKey);
PexObserve.ValueForViewing("$new_bh_minimum_key", New_bhMinimumKey);
PexObserve.ValueForViewing("$old_bh_minimum_value", Old_bhMinimumValue);
PexObserve.ValueForViewing("$new_bh_minimum_value", New_bhMinimumValue);
PexObserve.ValueForViewing("$old_bh_index", Old_index);
PexObserve.ValueForViewing("$new_ret_key", New_Ret_Key);
PexObserve.ValueForViewing("$new_ret_value", New_Ret_Value);
Assert.True(((Old_index <= New_bhCount && New_bhCount == -1 + Old_bhCount && Old_bhMinimumKey <= New_Ret_Key && Old_index >= 0)));
}