public void ForgettingAnItemNotAlreadyStocked_ThrowsAnException()
{
// Arrange
var sfm = new SmartFridgeManager();
var itemType = 123L;
// Act & Assert
Assert.Throws <InvalidOperationException>(() => sfm.ForgetItem(itemType));
}
public void AnUnaddedItemCanNotBeRemoved()
{
// Arrange
var sfm = new SmartFridgeManager();
var itemUUID = "8976";
// Act & Assert
Assert.Throws <InvalidOperationException>(() => sfm.HandleItemRemoved(itemUUID));
}
public void ItemCannotHaveAFillFactorGreaterThanOne()
{
// Arrange
var sfm = new SmartFridgeManager();
var itemUUID = "8976";
var itemType = 123;
var itemName = "Orange Juice";
double fillFactor = 2.0d;
// Act & Assert
Assert.Throws <ArgumentOutOfRangeException>(() => sfm.HandleItemAdded(itemType, itemUUID, itemName, fillFactor));
}
public void SameItemCannotBeAddedTwice()
{
// Arrange
var sfm = new SmartFridgeManager();
var itemUUID = "8976";
var itemType = 123;
var itemName = "Orange Juice";
double fillFactor = 1.0d;
sfm.HandleItemAdded(itemType, itemUUID, itemName, fillFactor);
// Act & Assert
Assert.Throws <InvalidOperationException>(() => sfm.HandleItemAdded(itemType, itemUUID, itemName, fillFactor));
}
public void AnAddedItemCanBeRemoved()
{
// Arrange
var sfm = new SmartFridgeManager();
var itemType = 123;
var itemUUID = "8976";
var itemName = "Orange Juice";
double fillFactor = 1.0d;
// Act
sfm.HandleItemAdded(itemType, itemUUID, itemName, fillFactor);
sfm.HandleItemRemoved(itemUUID);
// Assert
// If we got here without exception that's good enough for this test
}
public void GetFillFactor_WhenFridgeHasOneItemOfGivenType()
{
// Arrange
var sfm = new SmartFridgeManager();
var item1UUID = "1897";
var itemType = 123L;
var itemName = "Orange Juice";
double item1FillFactor = 0.25d;
sfm.HandleItemAdded(itemType, item1UUID, itemName, item1FillFactor);
// Act
var actualFillFactor = sfm.GetFillFactor(itemType);
// Assert
Assert.Equal(item1FillFactor, actualFillFactor);
}
public void GetItemsForShoppingListReturnsCorrectItems_WhenFridgeHasNoAlmostEmptyItems()
{
// Arrange
var sfm = new SmartFridgeManager();
var item1UUID = "18976";
var itemType = 123L;
var itemName = "Orange Juice";
double item1FillFactor = 0.75d;
sfm.HandleItemAdded(itemType, item1UUID, itemName, item1FillFactor);
double thresholdFillFactor = 0.5;
// Act
var items = sfm.GetItems(thresholdFillFactor);
// Assert
Assert.Empty(items);
}
public void GetItemsForShoppingListReturnsCorrectItems_WhenAnItemIsForgottenItShouldNotBeReturned()
{
// Arrange
var sfm = new SmartFridgeManager();
var item1UUID = "1897";
var itemType = 123L;
var itemName = "Orange Juice";
double item1FillFactor = 1.0d;
sfm.HandleItemAdded(itemType, item1UUID, itemName, item1FillFactor);
double thresholdFillFactor = 0.5;
// Act
sfm.ForgetItem(itemType);
var items = sfm.GetItems(thresholdFillFactor);
// Assert
Assert.Empty(items);
}
public void GetItems_NegativeThresholdNotAllowed()
{
// Arrange
var sfm = new SmartFridgeManager();
var item1UUID = "1897";
var ojItemType = 123L;
var itemName = "Orange Juice";
double ojFillFactor = 0.25d;
sfm.HandleItemAdded(ojItemType, item1UUID, itemName, ojFillFactor);
var item2UUID = "2897";
double item2FillFactor = 1.0d;
var otherItemType = 333L;
sfm.HandleItemAdded(otherItemType, item2UUID, itemName, item2FillFactor);
var threshold = -1.0d;
// Act & Assert
Assert.Throws <ArgumentOutOfRangeException>(() => sfm.GetItems(threshold));
}
public void GetItemsForShoppingListReturnsCorrectItems_WhenFridgeHasOneItemAlmostEmpty()
{
// Arrange
var sfm = new SmartFridgeManager();
var item1UUID = "18976";
var itemType = 123L;
var itemName = "Orange Juice";
double item1FillFactor = 0.25d;
sfm.HandleItemAdded(itemType, item1UUID, itemName, item1FillFactor);
double thresholdFillFactor = 0.5;
object[] expectedResult = new object[] { itemType, item1FillFactor };
// Act
var items = sfm.GetItems(thresholdFillFactor);
// Assert
Assert.Single(items);
Assert.Contains(expectedResult, items);
}
public void GetFillFactor_WhenFridgeHasUnrelatedItems()
{
// Arrange
var sfm = new SmartFridgeManager();
var item1UUID = "1897";
var ojItemType = 123L;
var itemName = "Orange Juice";
double ojFillFactor = 0.25d;
sfm.HandleItemAdded(ojItemType, item1UUID, itemName, ojFillFactor);
var item2UUID = "2897";
double item2FillFactor = 1.0d;
var otherItemType = 333L;
sfm.HandleItemAdded(otherItemType, item2UUID, itemName, item2FillFactor);
// Act
var actualFillFactor = sfm.GetFillFactor(ojItemType);
// Assert
Assert.Equal(ojFillFactor, actualFillFactor);
}
public SmartFridgeManagerTests()
{
_smartFridge = new Mock <ISmartFridge>();
_smartFridgeManager = new SmartFridgeManager(_smartFridge.Object);
}
