public void Replace_WithEnumeration_ReturnsNewEnumerationWithItemReplaced()
{
// arrange
var testModel = new TestModel {
Id = 2
};
var replacement = new TestModel {
Id = 5
};
var items = new TestModel[] {
new TestModel {
Id = 1
},
testModel,
new TestModel {
Id = 3
},
new TestModel {
Id = 4
},
};
// act
var newItems = items.Replace(testModel, replacement);
// assert
Assert.Contains(replacement, newItems);
Assert.DoesNotContain(testModel, newItems);
}
public void Replace_WithEnumerationAndNullSource_ReturnsNewEnumerationWithItemReplaced()
{
// arrange
var replacement = new TestModel { Id = 5 };
var items = new TestModel[] {
new TestModel { Id = 1 },
new TestModel { Id = 3 },
new TestModel { Id = 4 },
};
// act
var newItems = items.Replace(null, replacement);
// assert
Assert.Contains(replacement, newItems);
}
public void Replace_WithEnumeration_ReturnsNewEnumerationWithItemReplaced()
{
// arrange
var testModel = new TestModel { Id = 2 };
var replacement = new TestModel { Id = 5 };
var items = new TestModel[] {
new TestModel { Id = 1 },
testModel,
new TestModel { Id = 3 },
new TestModel { Id = 4 },
};
// act
var newItems = items.Replace(testModel, replacement);
// assert
Assert.Contains(replacement, newItems);
Assert.DoesNotContain(testModel, newItems);
}
public void Replace_WithEnumerationAndNullSource_ReturnsNewEnumerationWithItemReplaced()
{
// arrange
var replacement = new TestModel {
Id = 5
};
var items = new TestModel[] {
new TestModel {
Id = 1
},
new TestModel {
Id = 3
},
new TestModel {
Id = 4
},
};
// act
var newItems = items.Replace(null, replacement);
// assert
Assert.Contains(replacement, newItems);
}