public void DumpedDataCanBeReloaded()
{
var cache = new CacheWithFail <string, Data>();
cache.Add("Foo", new Data {
String = "Foo", Int = 1
});
cache.Add("Bar", new Data {
String = "Bar", Int = 2
});
var json = cache.DumpCacheAsJson();
var newCache = new CacheWithFail <string, Data>();
newCache.LoadCacheFromJson(json);
Data data;
newCache.TryGetValue("Foo", out data).Should().Be(CacheState.Found);
data.String.Should().Be("Foo");
data.Int.Should().Be(1);
newCache.TryGetValue("Bar", out data).Should().Be(CacheState.Found);
data.String.Should().Be("Bar");
data.Int.Should().Be(2);
}
public async Task ClearClearsTheCacheButNotFailedItems()
{
var cache = new CacheWithFail <string, Data>();
cache.Add("Foo", new Data {
String = "Foo", Int = 1
});
await cache.GetOrAddAsync("Bar", async s => await Task.Run(() => (Data)null));
cache.Clear();
Data data;
cache.TryGetValue("Foo", out data).Should().Be(CacheState.NotFound);
var called = false;
await cache.GetOrAddAsync("Bar", async s => await Task.Run(() =>
{
called = true;
return((Data)null);
}));
called.Should().BeFalse();
}
public void ContainsKeyReturnsCorrectValue(string key, bool expected)
{
var cache = new CacheWithFail <string, Data>();
cache.Add("Foo", new Data {
String = "Foo", Int = 1
});
cache.ContainsKey(key).Should().Be(expected);
}
public async Task IfItemIsInCacheFuncIsNotCalled()
{
var cache = new CacheWithFail<string, Data>();
cache.Add("Foo", new Data { String = "Foo", Int = 1 });
var called = false;
await cache.GetOrAddAsync("Foo", async s => await Task.Run(() =>
{
called = true;
return new Data { String = "Foo", Int = 1 };
}));
called.Should().BeFalse();
}
public async Task ClearClearsTheCache()
{
var cache = new CacheWithFail <string, Data>();
cache.Add("Foo", new Data {
String = "Foo", Int = 1
});
await cache.GetOrAddAsync("Bar", async s => await Task.Run(() => (Data)null));
cache.Clear();
Data data;
cache.TryGetValue("Foo", out data).Should().Be(CacheState.NotFound);
}
public async Task IfAddFailsThenFuncIsNotCalledAgain()
{
var cache = new CacheWithFail<string, Data>();
cache.Add("Foo", new Data { String = "Foo", Int = 1 });
await cache.GetOrAddAsync("Bar", async s => await Task.Run(() => (Data)null));
var called = false;
await cache.GetOrAddAsync("Bar", async s => await Task.Run(() =>
{
called = true;
return (Data)null;
}));
called.Should().BeFalse();
}
public async Task IfAddFailsThenFuncIsNotCalledAgain()
{
var cache = new CacheWithFail <string, Data>();
cache.Add("Foo", new Data {
String = "Foo", Int = 1
});
await cache.GetOrAddAsync("Bar", async s => await Task.Run(() => (Data)null));
var called = false;
await cache.GetOrAddAsync("Bar", async s => await Task.Run(() =>
{
called = true;
return((Data)null);
}));
called.Should().BeFalse();
}
public async Task IfItemIsInCacheFuncIsNotCalled()
{
var cache = new CacheWithFail <string, Data>();
cache.Add("Foo", new Data {
String = "Foo", Int = 1
});
var called = false;
await cache.GetOrAddAsync("Foo", async s => await Task.Run(() =>
{
called = true;
return(new Data {
String = "Foo", Int = 1
});
}));
called.Should().BeFalse();
}
public async Task ForceReloadForcesAReload()
{
var cache = new CacheWithFail <string, Data>();
cache.Add("Foo", new Data {
String = "Foo", Int = 1
});
var called = false;
await cache.GetOrAddAsync("Foo", async s => await Task.Run(() =>
{
called = true;
return(new Data {
String = "Foo", Int = 1
});
}), true);
called.Should().BeTrue();
}
public async Task IfAddFailsThenFuncIsCalledAgainAfterTimeout()
{
var cache = new CacheWithFail <string, Data>(TimeSpan.FromMilliseconds(100));
cache.Add("Foo", new Data {
String = "Foo", Int = 1
});
await cache.GetOrAddAsync("Bar", async s => await Task.Run(() => (Data)null));
await Task.Delay(1000);
var called = false;
await cache.GetOrAddAsync("Bar", async s => await Task.Run(() =>
{
called = true;
return((Data)null);
}));
called.Should().BeTrue();
}
public void DumpedDataCanBeReloaded()
{
var cache = new CacheWithFail<string, Data>();
cache.Add("Foo", new Data { String = "Foo", Int = 1 });
cache.Add("Bar", new Data { String = "Bar", Int = 2 });
var json = cache.DumpCacheAsJson();
var newCache = new CacheWithFail<string, Data>();
newCache.LoadCacheFromJson(json);
Data data;
newCache.TryGetValue("Foo", out data).Should().Be(CacheState.Found);
data.String.Should().Be("Foo");
data.Int.Should().Be(1);
newCache.TryGetValue("Bar", out data).Should().Be(CacheState.Found);
data.String.Should().Be("Bar");
data.Int.Should().Be(2);
}
public async Task IfAddFailsThenFuncIsCalledAgainAfterTimeout()
{
var cache = new CacheWithFail<string, Data>(TimeSpan.FromMilliseconds(100));
cache.Add("Foo", new Data { String = "Foo", Int = 1 });
await cache.GetOrAddAsync("Bar", async s => await Task.Run(() => (Data)null));
await Task.Delay(1000);
var called = false;
await cache.GetOrAddAsync("Bar", async s => await Task.Run(() =>
{
called = true;
return (Data)null;
}));
called.Should().BeTrue();
}
public async Task ForceReloadForcesAReload()
{
var cache = new CacheWithFail<string, Data>();
cache.Add("Foo", new Data { String = "Foo", Int = 1 });
var called = false;
await cache.GetOrAddAsync("Foo", async s => await Task.Run(() =>
{
called = true;
return new Data { String = "Foo", Int = 1 };
}), true);
called.Should().BeTrue();
}
public void ContainsKeyReturnsCorrectValue(string key, bool expected)
{
var cache = new CacheWithFail<string, Data>();
cache.Add("Foo", new Data { String = "Foo", Int = 1 });
cache.ContainsKey(key).Should().Be(expected);
}
public async Task ClearClearsTheCacheButNotFailedItems()
{
var cache = new CacheWithFail<string, Data>();
cache.Add("Foo", new Data { String = "Foo", Int = 1 });
await cache.GetOrAddAsync("Bar", async s => await Task.Run(() => (Data)null));
cache.Clear();
Data data;
cache.TryGetValue("Foo", out data).Should().Be(CacheState.NotFound);
var called = false;
await cache.GetOrAddAsync("Bar", async s => await Task.Run(() =>
{
called = true;
return (Data)null;
}));
called.Should().BeFalse();
}
public async Task ClearClearsTheCache()
{
var cache = new CacheWithFail<string, Data>();
cache.Add("Foo", new Data { String = "Foo", Int = 1 });
await cache.GetOrAddAsync("Bar", async s => await Task.Run(() => (Data)null));
cache.Clear();
Data data;
cache.TryGetValue("Foo", out data).Should().Be(CacheState.NotFound);
}
