public void DefaultCtorIsOk()
{
var adapter = new CascadingMultipleDictionaryAdapter();
Assert.NotNull(adapter.Sources);
Assert.Empty(adapter.Sources);
}
public void AddingEmptySourceIsOk()
{
var adapter = new CascadingMultipleDictionaryAdapter();
adapter.AddSource(new Dictionary<string, string>());
Assert.NotEmpty(adapter.Sources);
}
public void OrderAffectValuesWhenTheSameKeyIsPresent()
{
var dict1 = new Dictionary<string, string> { { "item1", "value1" } };
var dict2 = new Dictionary<string, string> { { "item1", "value2" } };
var adapter = new CascadingMultipleDictionaryAdapter(new[] { dict1, dict2 });
Assert.Equal("value2", adapter["item1"]);
}
public void ItGetsTheValueFomDictionary()
{
var dict1 = new Dictionary<string, string> { { "item1", "value1" } };
var dict2 = new Dictionary<string, string> { { "item2", "value2" } };
var adapter = new CascadingMultipleDictionaryAdapter(new[] { dict1, dict2 });
Assert.Equal("value1", adapter["item1"]);
Assert.Equal("value2", adapter["item2"]);
Assert.Null(adapter["item3"]);
}
public void ItContainsTheKeysOfSourceDictionaries()
{
var dict1 = new Dictionary<string, string> { { "item1", "value1" } };
var dict2 = new Dictionary<string, string> { { "item2", "value2" } };
var adapter = new CascadingMultipleDictionaryAdapter(new[] { dict1, dict2 });
Assert.Equal(2, adapter.Sources.Count());
Assert.True(adapter.Contains("item1"));
Assert.True(adapter.Contains("item2"));
Assert.False(adapter.Contains("item3"));
}
public void EmptyInputIsOk()
{
// ReSharper disable once UnusedVariable
var dummy = new CascadingMultipleDictionaryAdapter(new List<IDictionary<string, string>>());
}
public void AddingNullSourceThrows()
{
var adapter = new CascadingMultipleDictionaryAdapter();
Assert.Throws<ArgumentNullException>(() => adapter.AddSource(null));
}
