public void RemoveItem_ItemNotExists_ReturnsFalse()
{
var dctIntStr = new DictionaryImplementedWithList <int, string>();
dctIntStr.Add(1, "a");
dctIntStr.Remove(new KeyValuePair <int, string>(2, "a")).Should().BeFalse();
}
public void RemoveByKey_KeyNotExists_ReturnsFalse()
{
var dctIntStr = new DictionaryImplementedWithList <int, string>();
dctIntStr.Add(1, "a");
dctIntStr.Remove(2).Should().BeFalse();
}
public void ContainsKey_NonSpecialKey_KeyNotExists_ReturnsFalse()
{
var dctIntStr = new DictionaryImplementedWithList <int, string>();
dctIntStr.Add(1, "a");
dctIntStr.ContainsKey(2).Should().BeFalse();
}
public void ContainsKey_StringKey_UsesCaseInsensitiveCompare_KeyExists_ReturnsTrue()
{
var dctStrStr = new DictionaryImplementedWithList <string, string>();
dctStrStr.Add("mykey", "myvalue");
dctStrStr.ContainsKey("MYKEY").Should().BeTrue();
}
public void DictionaryGet_KeyNotExists_ThrowsKeyNotFound()
{
var dctIntStr = new DictionaryImplementedWithList <int, string>();
string val;
Action act = () => val = dctIntStr[3];
act.ShouldThrow <KeyNotFoundException>();
}
public void Add_KeyNotExist_IncreasesCount()
{
var dctIntStr = new DictionaryImplementedWithList <int, string>();
dctIntStr.Count.Should().Be(0);
dctIntStr.Add(new KeyValuePair <int, string>(1, "A"));
dctIntStr.Count.Should().Be(1);
}
public void DictionarySet_KeyExists_SetsValue()
{
var dctIntStr = new DictionaryImplementedWithList <int, string>();
dctIntStr.Add(1, "a");
dctIntStr[1] = "b";
dctIntStr[1].Should().Be("b");
}
public void DictionaryGet_KeyExists_ReturnsValue()
{
var dctIntStr = new DictionaryImplementedWithList <int, string>();
dctIntStr.Add(1, "A");
var val = dctIntStr[1];
val.Should().Be("A");
}
public void Add_KeyExists_ThrowsError()
{
var dctIntStr = new DictionaryImplementedWithList <int, string>();
dctIntStr.Add(new KeyValuePair <int, string>(1, "A"));
Action act = () => dctIntStr.Add(new KeyValuePair <int, string>(1, "A"));
act.ShouldThrow <ArgumentException>();
}
public void TryGetValue_KeyNotExists_ReturnFalse()
{
var dctIntStr = new DictionaryImplementedWithList <int, string>();
string myValue;
dctIntStr.Add(1, "a");
dctIntStr.TryGetValue(2, out myValue).Should().BeFalse();
}
public void DictionarySet_KeyNotExists_ThrowsKeyNotFound()
{
var dctIntStr = new DictionaryImplementedWithList <int, string>();
dctIntStr.Add(1, "a");
Action act = () => dctIntStr[2] = "A";
act.ShouldThrow <KeyNotFoundException>();
}
public void Clear_ReducesCountToZero()
{
var dctIntStr = new DictionaryImplementedWithList <int, string>();
dctIntStr.Add(1, "A");
dctIntStr.Count.Should().Be(1);
dctIntStr.Clear();
dctIntStr.Count.Should().Be(0);
}
public void ContainsKey_ObjectKey_UseCustomComparer_KeyNotExists_ReturnsFalse()
{
var dctObjStr = new DictionaryImplementedWithList <Animal, string>(
new AnimalComparer());
var tony = new Animal {
Name = "Tony", Says = "Roar"
};
var simba = new Animal {
Name = "Tigger", Says = "Meow"
};
dctObjStr.Add(tony, "they're great!");
dctObjStr.ContainsKey(simba).Should().BeFalse();
}
public void GetEnumerator_CanEnumerate()
{
var dctIntStr = new DictionaryImplementedWithList <int, string>();
dctIntStr.Add(1, "a");
dctIntStr.Add(2, "b");
dctIntStr.Add(3, "c");
var enumerator = dctIntStr.GetEnumerator();
var counter = 1;
while (enumerator.MoveNext())
{
var pair = enumerator.Current;
pair.Key.Should().Be(counter);
counter++;
}
}
public void CopyTo_CopiesDictionaryToArray()
{
var myArray = new KeyValuePair <int, string> [5];
var dctIntStr = new DictionaryImplementedWithList <int, string>();
dctIntStr.Add(1, "a");
dctIntStr.Add(2, "b");
dctIntStr.Add(3, "c");
dctIntStr.CopyTo(myArray, 2);
myArray[2].Key.Should().Be(1);
myArray[2].Value.Should().Be("a");
myArray[3].Key.Should().Be(2);
myArray[3].Value.Should().Be("b");
myArray[4].Key.Should().Be(3);
myArray[4].Value.Should().Be("c");
}
