public async Task OnActivateAsync_WithDefaultState_DoesNotMutateState()
{
// Arrange
var state = new ColorGrainState();
Silo.AddPersistentState(stateName: "State", state: state);
// Act
var grain = await Silo.CreateGrainAsync <ColorGrain>(GrainId);
// Assert
state.Color.Should().Be(Color.Unknown);
state.Id.Should().Be(Guid.Empty);
}
public async Task GetFavouriteColor_WithState_ReturnsColor()
{
Silo.AddPersistentState("Default", state: new ColorGrainState
{
Id = GrainId,
Color = Color.Blue
});
var grain = await Silo.CreateGrainAsync <ColorRankingGrain>(GrainId);
// Act
var color = await grain.GetFavouriteColor();
color.Should().Be(Color.Blue);
}
public async Task SetColor_WithDefaultState_SetsState()
{
// Arrange
var state = new ColorGrainState();
Silo.AddPersistentState(stateName: "State", state: state);
var grain = await Silo.CreateGrainAsync <ColorGrain>(GrainId);
// Act
await grain.SetColor(Color.Blue);
// Assert
state.Color.Should().Be(Color.Blue);
state.Id.Should().Be(GrainId);
}
public async Task SetColor_WithMutatedState_ThrowsInconsistentStateException()
{
// Arrange
var mock = new Mock <IStorage <ColorGrainState> >();
mock.SetupAllProperties();
mock.Setup(o => o.WriteStateAsync()).Throws <InconsistentStateException>();
Silo.AddPersistentState(stateName: "State", storage: mock.Object);
var grain = await Silo.CreateGrainAsync <ColorGrain>(GrainId);
Action action = () => grain.SetColor(Color.Green);
// Act+Assert
action.Should().Throw <InconsistentStateException>();
}
public async Task SetFavouriteColor_WithState_SetsState()
{
var persistentState = Silo.AddPersistentState("Default", state: new ColorGrainState
{
Id = GrainId,
Color = Color.Red
});
var grain = await Silo.CreateGrainAsync <ColorRankingGrain>(GrainId);
// Act
await grain.SetFavouriteColor(Color.Blue);
var state = persistentState.State;
state.Color.Should().Be(Color.Blue);
state.Id.Should().Be(GrainId);
}
public async Task GetColor_WithState_ReturnsColor()
{
// Arrange
var state = new ColorGrainState
{
Color = Color.Red,
Id = GrainId,
};
Silo.AddPersistentState(stateName: "State", state: state);
var grain = await Silo.CreateGrainAsync <ColorGrain>(GrainId);
// Act
var color = await grain.GetColor();
// Assert
color.Should().Be(Color.Red);
}
public async Task ResetColor_WithState_ClearsState()
{
// Arrange
var state = new ColorGrainState
{
Color = Color.Red,
Id = GrainId,
};
Silo.AddPersistentState(stateName: "State", state: state);
var grain = await Silo.CreateGrainAsync <ColorGrain>(GrainId);
// Act
await grain.ResetColor();
// Assert
var storageStats = Silo.StorageManager.GetStorageStats(stateName: "State");
storageStats.Clears.Should().Be(1);
}
public async Task ResetColor_WithDefaultState_DoesNotClearState()
{
// Arrange
var state = new ColorGrainState();
Silo.AddPersistentState(stateName: "State", state: state);
var grain = await Silo.CreateGrainAsync <ColorGrain>(GrainId);
// Act
await grain.ResetColor();
// Assert
state.Color.Should().Be(Color.Unknown);
state.Id.Should().Be(Guid.Empty);
// Note that the following assert ties this test to the _implementation_ details. Generally, one should try
// to avoid tying the test to the implementation details. It can lead to more brittle tests. However, one may
// choose to accept this as a trade-off when the implementation detail represents an important behavior.
var storageStats = Silo.StorageManager.GetStorageStats(stateName: "State");
storageStats.Clears.Should().Be(0);
}