public void Set_WhenSettingAValue_ShouldReturnTrue(string key, string value)
{
// Arrange
var db = new SimpleCacheDb();
//Act
bool result = db.Set(key, value);
//Assert
Assert.True(result);
}
public void Get_WhenGettingAKeyThatDoesNotExists_ShouldReturnNull(string key)
{
//Arrange
var db = new SimpleCacheDb();
//Act
string value = db.Get(key);
//Assert
Assert.Null(value);
}
public void Del_WhenDeletingAnNonExistentValue_ShouldReturTrue(string key)
{
//Arrange
var db = new SimpleCacheDb();
//Act
bool returnedStatus = db.Del(key);
//Assert
Assert.False(returnedStatus);
}
public void Incr_WhenIncrementingNonExistentKey_ShouldReturn1(string key, string expectedResult)
{
//Arrange
var db = new SimpleCacheDb();
//Act
string value = db.Incr(key);
//Assert
Assert.Equal(expectedResult, value);
}
public void Del_WhenDeletingAnExistentValue_ShouldReturTrue(string key, string value)
{
//Arrange
var db = new SimpleCacheDb();
//Act
db.Set(key, value);
bool returnedStatus = db.Del(key);
//Assert
Assert.True(returnedStatus);
}
public void Get_WhenSettingValue_ShouldReturTheSameValue(string key, string value)
{
//Arrange
var db = new SimpleCacheDb();
//Act
db.Set(key, value);
string returnedValue = db.Get(key);
//Assert
Assert.Equal(value, returnedValue);
}
public void Incr_WhenIncrementingAnExistentKey_ValueShoudBeIncreasedBy1(string key, string initialValue, string expectedResult)
{
//Arrange
var db = new SimpleCacheDb();
//Act
db.Set(key, initialValue);
string increasedValue = db.Incr(key);
//Assert
Assert.Equal(expectedResult, increasedValue);
}
public void Zadd_WhenAddingItem_ShouldReturnTrue()
{
//Arrange
var db = new SimpleCacheDb();
var key = "name";
var score = 1;
var value = "Bob";
//Act
bool result = db.Zadd(key, score, value);
//Assert
Assert.True(result);
}
public void Incr_WhenIncrementingAKeyWithNonIntegerValue_ShouldThrowAnException()
{
//Arrange
var db = new SimpleCacheDb();
var key = "name";
var value = "Bob";
//Act
db.Set(key, value);
Action action = () => db.Incr(key);
//Assert
Assert.Throws <Exception>(action);
}
public void Zcard_WhenAddingThreeMembersForTheSameKey_ShouldReturnThree()
{
//Arrange
var db = new SimpleCacheDb();
var key = "students";
//Act
db.Zadd(key, 15, "Bob");
db.Zadd(key, 20, "Thomas");
db.Zadd(key, 15, "Robert");
var cardinality = db.Zcard(key);
//Assert
Assert.Equal(3, cardinality);
}
public void Set_WhenSettingValueWithExpiration_ShouldRespectExpirationTime(string key, string value, int expirationSeconds)
{
//Arrange
var db = new SimpleCacheDb();
//Act
db.Set(key, value, expirationSeconds);
string returnedValueBeforeExpiration = db.Get(key);
Console.WriteLine(returnedValueBeforeExpiration);
Thread.Sleep(1000);
string returnedValueAfterExpiration = db.Get(key);
//Assert
Assert.Equal(value, returnedValueBeforeExpiration);
Assert.Null(returnedValueAfterExpiration);
}
