public void TryGetItem_CaseSensitive_ReturnsCorrectItem()
{
// Arrange
var manager = new TestItemManager();
var item1 = manager.GetOrCreateItem("abc", item => item.Value = 1);
var item2 = manager.GetOrCreateItem("ABC", item => item.Value = 2);
// Act
var actual1 = manager.TryGetItem("abc");
var actual2 = manager.TryGetItem("ABC");
var actual3 = manager.TryGetItem("aBc");
// Assert
item1.Should().NotBeNull();
item2.Should().NotBeNull();
item1.Should().NotBeSameAs(item2);
actual1.Should().NotBeNull();
actual1.Should().BeSameAs(item1);
actual2.Should().NotBeNull();
actual2.Should().BeSameAs(item2);
actual3.Should().BeNull();
}
public void GetOrCreateItem_CreatesNew_PreviouslyRemovedItem()
{
// Arrange
var manager = new TestItemManager();
// Act
var item1 = manager.GetOrCreateItem(
"abc",
item =>
{
Assert.Equal(0, item.Value);
item.Value = 1;
});
Assert.True(manager.TryRemoveItem("abc"));
var item2 = manager.GetOrCreateItem(
"abc",
item =>
{
Assert.Equal(0, item.Value);
item.Value = 2;
});
// Assert
Assert.NotNull(item1);
Assert.Equal("abc", item1.ItemId);
Assert.Equal(1, item1.Value);
Assert.NotNull(item2);
Assert.Equal("abc", item2.ItemId);
Assert.Equal(2, item2.Value);
}
public void GetOrCreateItem_ReusesAndReinitializes_ExistingItem()
{
// Arrange
var manager = new TestItemManager();
// Act
var item1 = manager.GetOrCreateItem(
"abc",
item =>
{
item.Value.Should().Be(0);
item.Value = 1;
});
var item2 = manager.GetOrCreateItem(
"abc",
item =>
{
item.Value.Should().Be(1);
item.Value = 2;
});
// Assert
item1.Should().NotBeNull();
item1.ItemId.Should().Be("abc");
item1.Value.Should().Be(2);
item1.Should().BeSameAs(item2);
}
public void TryGetItem_CaseSensitive_ReturnsCorrectItem()
{
// Arrange
var manager = new TestItemManager();
var item1 = manager.GetOrCreateItem("abc", item => item.Value = 1);
var item2 = manager.GetOrCreateItem("ABC", item => item.Value = 2);
// Act
var actual1 = manager.TryGetItem("abc");
var actual2 = manager.TryGetItem("ABC");
var actual3 = manager.TryGetItem("aBc");
// Assert
Assert.NotNull(item1);
Assert.NotNull(item2);
Assert.NotSame(item2, item1);
Assert.NotNull(actual1);
Assert.Same(item1, actual1);
Assert.NotNull(actual2);
Assert.Same(item2, actual2);
Assert.Null(actual3);
}
public void GetOrCreateItem_CreatesNew_PreviouslyRemovedItem()
{
// Arrange
var manager = new TestItemManager();
// Act
var item1 = manager.GetOrCreateItem(
"abc",
item =>
{
item.Value.Should().Be(0);
item.Value = 1;
});
manager.TryRemoveItem("abc").Should().BeTrue();
var item2 = manager.GetOrCreateItem(
"abc",
item =>
{
item.Value.Should().Be(0);
item.Value = 2;
});
// Assert
item1.Should().NotBeNull();
item1.ItemId.Should().Be("abc");
item1.Value.Should().Be(1);
item2.Should().NotBeNull();
item2.ItemId.Should().Be("abc");
item2.Value.Should().Be(2);
}
public void GetOrCreateItem_ReusesAndReinitializes_ExistingItem()
{
// Arrange
var manager = new TestItemManager();
// Act
var item1 = manager.GetOrCreateItem(
"abc",
item =>
{
Assert.Equal(0, item.Value);
item.Value = 1;
});
var item2 = manager.GetOrCreateItem(
"abc",
item =>
{
Assert.Equal(1, item.Value);
item.Value = 2;
});
// Assert
Assert.NotNull(item1);
Assert.Equal("abc", item1.ItemId);
Assert.Equal(2, item1.Value);
Assert.Same(item2, item1);
}
public void TryGetItem_NonExistentItem_ReturnsNull()
{
var manager = new TestItemManager();
var item = manager.TryGetItem("abc");
Assert.Null(item);
}
public void GetItems_Works_Empty()
{
var manager = new TestItemManager();
var items = manager.GetItems();
Assert.Empty(items);
}
public void GetOrCreateItem_DoesNotAdd_WhenSetupActionThrows()
{
var manager = new TestItemManager();
Action action = () => manager.GetOrCreateItem("abc", item => throw new Exception());
Assert.Throws <Exception>(action);
Assert.Empty(manager.GetItems());
}
public void GetItems_Works_OneItem()
{
var manager = new TestItemManager();
var item = manager.GetOrCreateItem("abc", item => { });
var items = manager.GetItems();
Assert.Single(items);
Assert.Same(item, items[0]);
}
public void GetItems_Works_Empty()
{
// Arrange
var manager = new TestItemManager();
// Act
var items = manager.GetItems();
// Assert
Assert.Empty(items);
}
public void TryGetItem_NonExistentItem_ReturnsNull()
{
// Arrange
var manager = new TestItemManager();
// Act
var item = manager.TryGetItem("abc");
// Assert
Assert.Null(item);
}
public void TryRemoveItem_Works()
{
var manager = new TestItemManager();
var item = manager.GetOrCreateItem("abc", item => { });
var result1 = manager.TryRemoveItem("abc");
var result2 = manager.TryRemoveItem("abc");
Assert.True(result1);
Assert.False(result2);
}
public void GetItems_Works_Empty()
{
// Arrange
var manager = new TestItemManager();
// Act
var items = manager.GetItems();
// Assert
items.Should().BeEmpty();
}
public void GetOrCreateItem_DoesNotAdd_WhenSetupActionThrows()
{
// Arrange
var manager = new TestItemManager();
// Act
Action action = () => manager.GetOrCreateItem("abc", item => throw new Exception());
// Assert
action.Should().ThrowExactly <Exception>();
manager.GetItems().Should().BeEmpty();
}
public void TryGetItem_ExistingItem_Works()
{
var manager = new TestItemManager();
manager.GetOrCreateItem("abc", item => item.Value = 1);
var item = manager.TryGetItem("abc");
Assert.NotNull(item);
Assert.Equal("abc", item.ItemId);
Assert.Equal(1, item.Value);
}
public void GetItems_Works_TwoItems()
{
var manager = new TestItemManager();
var item1 = manager.GetOrCreateItem("abc", item => { });
var item2 = manager.GetOrCreateItem("def", item => { });
var items = manager.GetItems();
Assert.Equal(2, items.Count);
Assert.Contains(item1, items);
Assert.Contains(item2, items);
}
public void GetItems_Works_OneItem()
{
// Arrange
var manager = new TestItemManager();
// Act
var item = manager.GetOrCreateItem("abc", item => { });
var items = manager.GetItems();
// Assert
items.Should().HaveCount(1);
items[0].Should().BeSameAs(item);
}
public void TryRemoveItem_Works()
{
// Arrange
var manager = new TestItemManager();
// Act
var item = manager.GetOrCreateItem("abc", item => { });
var result1 = manager.TryRemoveItem("abc");
var result2 = manager.TryRemoveItem("abc");
// Assert
result1.Should().BeTrue();
result2.Should().BeFalse();
}
public void GetOrCreateItem_CreatesAndInitializes_NonExistentItem()
{
var manager = new TestItemManager();
var item1 = manager.GetOrCreateItem("abc", item => item.Value = 1);
var item2 = manager.GetOrCreateItem("def", item => item.Value = 2);
Assert.NotNull(item1);
Assert.Equal("abc", item1.ItemId);
Assert.Equal(1, item1.Value);
Assert.NotNull(item2);
Assert.Equal("def", item2.ItemId);
Assert.Equal(2, item2.Value);
}
public void GetItems_Works_TwoItems()
{
// Arrange
var manager = new TestItemManager();
// Act
var item1 = manager.GetOrCreateItem("abc", item => { });
var item2 = manager.GetOrCreateItem("def", item => { });
var items = manager.GetItems();
// Assert
items.Should().HaveCount(2);
items.Should().Contain(item1);
items.Should().Contain(item2);
}
public void TryGetItem_ExistingItem_Works()
{
// Arrange
var manager = new TestItemManager();
manager.GetOrCreateItem("abc", item => item.Value = 1);
// Act
var item = manager.TryGetItem("abc");
// Assert
item.Should().NotBeNull();
item.ItemId.Should().Be("abc");
item.Value.Should().Be(1);
}
public void GetOrCreateItem_ThreadSafety()
{
const int Iterations = 100_000;
var manager = new TestItemManager();
Parallel.For(0, Iterations, i =>
{
manager.GetOrCreateItem("abc", item => item.Value++);
});
var item = manager.TryGetItem("abc");
Assert.NotNull(item);
Assert.Equal("abc", item.ItemId);
Assert.Equal(Iterations, item.Value);
}
public void Items_Notifications_Work()
{
// Arrange
var manager = new TestItemManager();
var itemsCountSignal = manager.Items.Select(items => items.Count);
// Act
manager.GetOrCreateItem("abc", item => { });
manager.GetOrCreateItem("def", item => { });
Assert.Equal(2, itemsCountSignal.Value);
manager.TryRemoveItem("abc");
manager.TryRemoveItem("def");
Assert.Equal(0, itemsCountSignal.Value);
}
public void GetOrCreateItem_CreatesAndInitializes_NonExistentItem()
{
// Arrange
var manager = new TestItemManager();
// Act
var item1 = manager.GetOrCreateItem("abc", item => item.Value = 1);
var item2 = manager.GetOrCreateItem("def", item => item.Value = 2);
// Assert
item1.Should().NotBeNull();
item1.ItemId.Should().Be("abc");
item1.Value.Should().Be(1);
item2.Should().NotBeNull();
item2.ItemId.Should().Be("def");
item2.Value.Should().Be(2);
}
public void GetOrCreateItem_ThreadSafety()
{
// Arrange
const int Iterations = 100_000;
var manager = new TestItemManager();
// Act
Parallel.For(0, Iterations, i =>
{
manager.GetOrCreateItem("abc", item => item.Value++);
});
// Assert
var item = manager.TryGetItem("abc");
item.Should().NotBeNull();
item.ItemId.Should().Be("abc");
item.Value.Should().Be(Iterations);
}
public void TryGetItem_CaseInsensitive_ReturnsSameItem()
{
var manager = new TestItemManager();
var item1 = manager.GetOrCreateItem("abc", item => item.Value = 1);
var item2 = manager.GetOrCreateItem("ABC", item => item.Value = 2);
var actual1 = manager.TryGetItem("abc");
var actual2 = manager.TryGetItem("ABC");
var actual3 = manager.TryGetItem("aBc");
Assert.NotNull(item1);
Assert.NotNull(item2);
Assert.NotNull(actual1);
Assert.NotNull(actual2);
Assert.NotNull(actual3);
Assert.Same(item1, item2);
Assert.Same(item2, actual1);
Assert.Same(actual1, actual2);
Assert.Same(actual2, actual3);
}
