public void Size(int cacheSize, int expectedCacheSize)
{
// arrange
var cache = new TaskCache(cacheSize);
// act
var result = cache.Size;
// assert
Assert.Equal(expectedCacheSize, result);
}
public void ConstructorBNoException()
{
// arrange
var cache = new TaskCache <string>(10, TimeSpan.Zero);
// act
Action verify = () => new CacheConstructor(cache);
// assert
Assert.Null(Record.Exception(verify));
}
public void ConstructorBCacheNull()
{
// arrange
TaskCache <string> cache = null;
// act
Action verify = () => new CacheConstructor(cache);
// assert
Assert.Throws <ArgumentNullException>("cache", verify);
}
public void ClearEmptyCache()
{
// arrange
var cacheSize = 10;
var cache = new TaskCache(cacheSize);
// act
cache.Clear();
// assert
Assert.Equal(0, cache.Usage);
}
public void ClearNoException()
{
// arrange
var cacheSize = 10;
var cache = new TaskCache(cacheSize);
// act
Action verify = () => cache.Clear();
// assert
Assert.Null(Record.Exception(verify));
}
public void Size(int cacheSize, int expectedCacheSize)
{
// arrange
TimeSpan slidingExpiration = TimeSpan.Zero;
var cache = new TaskCache <string, string>(cacheSize,
slidingExpiration);
// act
var result = cache.Size;
// assert
Assert.Equal(expectedCacheSize, result);
}
public void TryAddValueNull()
{
// arrange
var cacheSize = 10;
var cache = new TaskCache(cacheSize);
var key = new TaskCacheKey("a", "Foo");
// act
void Verify() => cache.TryAdd(key, default(Task <string>) !);
// assert
Assert.Throws <ArgumentNullException>("value", Verify);
}
public void GetOrAddTaskWhenNothingIsCached_IntegerKey()
{
// arrange
var cacheSize = 10;
var cache = new TaskCache(cacheSize);
var key = new TaskCacheKey("a", 1);
// act
Task <string> resolved = cache.GetOrAddTask(key, () => Task.FromResult("Quox"));
// assert
Assert.Equal("Quox", resolved.Result);
}
public void RemoveNoException()
{
// arrange
var cacheSize = 10;
var cache = new TaskCache(cacheSize);
var key = "Foo";
// act
Action verify = () => cache.Remove(key);
// assert
Assert.Null(Record.Exception(verify));
}
public void RemoveNoException()
{
// arrange
var cacheSize = 10;
var cache = new TaskCache(cacheSize);
var key = "Foo";
// act
bool Verify() => cache.TryRemove(new("a", key));
// assert
Assert.False(Verify());
}
public void TryGetValueNullResult()
{
// arrange
var cacheSize = 10;
var cache = new TaskCache(cacheSize);
var key = "Foo";
// act
var result = cache.TryGetValue(key, out object value);
// assert
Assert.False(result);
}
public void ClearNoException()
{
// arrange
var cacheSize = 10;
TimeSpan slidingExpiration = TimeSpan.Zero;
var cache = new TaskCache <string, string>(cacheSize,
slidingExpiration);
// act
Action verify = () => cache.Clear();
// assert
Assert.Null(Record.Exception(verify));
}
public void TryAddValueNull()
{
// arrange
var cacheSize = 10;
var cache = new TaskCache(cacheSize);
var key = "Foo";
string value = null;
// act
Action verify = () => cache.TryAdd(key, value);
// assert
Assert.Throws <ArgumentNullException>("value", verify);
}
public void TryAddNoException()
{
// arrange
var cacheSize = 10;
var cache = new TaskCache(cacheSize);
var key = "Foo";
var value = "Bar";
// act
Action verify = () => cache.TryAdd(key, value);
// assert
Assert.Null(Record.Exception(verify));
}
public void ClearEmptyCache()
{
// arrange
var cacheSize = 10;
TimeSpan slidingExpiration = TimeSpan.Zero;
var cache = new TaskCache <string, string>(cacheSize,
slidingExpiration);
// act
cache.Clear();
// assert
Assert.Equal(0, cache.Usage);
}
public void TryGetValueNullResult()
{
// arrange
var cacheSize = 10;
TimeSpan slidingExpiration = TimeSpan.Zero;
var cache = new TaskCache <string, string>(cacheSize,
slidingExpiration);
var key = "Foo";
// act
var result = cache.TryGetValue(key, out Task <string> value);
// assert
Assert.False(result);
}
public void RemoveKeyNull()
{
// arrange
var cacheSize = 10;
TimeSpan slidingExpiration = TimeSpan.Zero;
var cache = new TaskCache <string, string>(cacheSize,
slidingExpiration);
string key = null;
// act
Action verify = () => cache.Remove(key);
// assert
Assert.Throws <ArgumentNullException>("key", verify);
}
public void ClearAllEntries()
{
// arrange
var cacheSize = 10;
var cache = new TaskCache(cacheSize);
cache.TryAdd("Foo", Task.FromResult("Bar"));
cache.TryAdd("Bar", Task.FromResult("Baz"));
// act
cache.Clear();
// assert
Assert.Equal(0, cache.Usage);
}
public void RemoveNoException()
{
// arrange
var cacheSize = 10;
TimeSpan slidingExpiration = TimeSpan.Zero;
var cache = new TaskCache <string>(cacheSize,
slidingExpiration);
var key = "Foo";
// act
Action verify = () => cache.Remove(key);
// assert
Assert.Null(Record.Exception(verify));
}
public void TryAddKeyNull()
{
// arrange
var cacheSize = 10;
TimeSpan slidingExpiration = TimeSpan.Zero;
var cache = new TaskCache <string, string>(cacheSize,
slidingExpiration);
string key = null;
var value = Task.FromResult("Foo");
// act
Action verify = () => cache.TryAdd(key, value);
// assert
Assert.Throws <ArgumentNullException>("key", verify);
}
public void TryAddValueNull()
{
// arrange
var cacheSize = 10;
TimeSpan slidingExpiration = TimeSpan.Zero;
var cache = new TaskCache <string, string>(cacheSize,
slidingExpiration);
var key = "Foo";
Task <string> value = null;
// act
Action verify = () => cache.TryAdd(key, value);
// assert
Assert.Throws <ArgumentNullException>("value", verify);
}
public void TryAddNoException()
{
// arrange
var cacheSize = 10;
TimeSpan slidingExpiration = TimeSpan.Zero;
var cache = new TaskCache <string, string>(cacheSize,
slidingExpiration);
var key = "Foo";
var value = Task.FromResult("Bar");
// act
Action verify = () => cache.TryAdd(key, value);
// assert
Assert.Null(Record.Exception(verify));
}
public void ClearAllEntries()
{
// arrange
var cacheSize = 10;
TimeSpan slidingExpiration = TimeSpan.Zero;
var cache = new TaskCache <string, string>(cacheSize,
slidingExpiration);
cache.TryAdd("Foo", Task.FromResult("Bar"));
cache.TryAdd("Bar", Task.FromResult("Baz"));
// act
cache.Clear();
// assert
Assert.Equal(0, cache.Usage);
}
public void Usage(string[] values, int expectedUsage)
{
// arrange
var cacheSize = 10;
var cache = new TaskCache(cacheSize);
foreach (var value in values)
{
cache.TryAdd($"Key:{value}", value);
}
// act
var result = cache.Usage;
// assert
Assert.Equal(expectedUsage, result);
}
public void TryGetValueResultByInteger()
{
// arrange
var cacheSize = 10;
var cache = new TaskCache(cacheSize);
var key = 1;
var expected = "Bar";
cache.TryAdd(key, expected);
// act
var result = cache.TryGetValue(key, out object actual);
// assert
Assert.True(result);
Assert.Equal(expected, (string)actual);
}
public void VerifyExpirationTrue()
{
// arrange
var cacheSize = 10;
var slidingExpiration = TimeSpan.FromMilliseconds(500);
var cache = new TaskCache <string, string>(cacheSize,
slidingExpiration);
var key = "Foo";
cache.TryAdd(key, Task.FromResult("Bar"));
// act
var exists = cache.TryGetValue(key, out Task <string> actual);
// assert
Assert.True(exists);
}
public void TryAddNewCacheEntryWithFactory()
{
// arrange
var cacheSize = 10;
var cache = new TaskCache(cacheSize);
var key = new TaskCacheKey("a", "Foo");
var expected = Task.FromResult("Bar");
// act
var added = cache.TryAdd(key, () => expected);
// assert
Task <string> resolved = cache.GetOrAddTask(key, () => Task.FromResult("Baz"));
Assert.True(added);
Assert.Same(expected, resolved);
}
public void TryAddNewCacheEntry()
{
// arrange
var cacheSize = 10;
var cache = new TaskCache(cacheSize);
var key = "Foo";
var expected = "Bar";
// act
var added = cache.TryAdd(key, expected);
// assert
var exists = cache.TryGetValue(key, out object actual);
Assert.True(added);
Assert.True(exists);
Assert.Equal(expected, (string)actual);
}
public void RemoveEntry()
{
// arrange
var cacheSize = 10;
var cache = new TaskCache(cacheSize);
var key = new TaskCacheKey("a", "Foo");
var value = Task.FromResult("Bar");
cache.TryAdd(key, value);
// act
cache.TryRemove(key);
// assert
Task <string> retrieved = cache.GetOrAddTask(key, () => Task.FromResult("Baz"));
Assert.NotSame(value, retrieved);
}
public void RemoveEntry()
{
// arrange
var cacheSize = 10;
var cache = new TaskCache(cacheSize);
var key = "Foo";
cache.TryAdd(key, "Bar");
// act
cache.Remove(key);
// assert
var exists = cache.TryGetValue(key, out object actual);
Assert.False(exists);
Assert.Null(actual);
}