public void GetShouldReturnDefaultValueIfItemNotExistTest()
{
// Given
var sut = new DictionaryDefaultValueDecorator <int, string>(
new Dictionary <int, string>(),
EqualityComparer <string> .Default,
"default value");
// When
var result = sut[1];
// Then
result.Should().Be("default value");
}
public void SetShouldRemoveItemIfValueIsDefaultTest()
{
// Given
var dictionary = new Dictionary <int, string> {
{ 1, "1" }, { 2, "default value" }
};
var sut = new DictionaryDefaultValueDecorator <int, string>(dictionary, EqualityComparer <string> .Default,
"default value");
// When
sut[1] = "default value";
// Then
sut.Should().BeEmpty();
dictionary.Should().BeEmpty();
}
public void AddShouldNotAddDefaultValueButAnywayShouldThrowExceptionIfItemExistTest()
{
// Given
var dictionary = new Dictionary <int, string> {
{ 1, "1" }
};
var sut = new DictionaryDefaultValueDecorator <int, string>(
dictionary,
EqualityComparer <string> .Default,
"default value");
// When
var action = sut.Invoking(s => s.Add(1, "default value"));
// Then
action.Should().Throw <ArgumentException>().WithMessage("Duplicate key*").Which.ParamName.Should().Be("key");
}
