public async Task TestMemoryMonitorWithSimulatedValues()
{
using (var monitor = new MacPlatformService.MacMemoryMonitor()) {
var tcs = new TaskCompletionSource <bool> ();
int statusChangedCount = 0;
monitor.StatusChanged += (o, args) => {
if (statusChangedCount == 0)
{
Assert.AreEqual(PlatformMemoryStatus.Low, args.MemoryStatus);
}
else if (statusChangedCount == 1)
{
Assert.AreEqual(PlatformMemoryStatus.Critical, args.MemoryStatus);
}
else if (statusChangedCount == 2)
{
Assert.AreEqual(PlatformMemoryStatus.Normal, args.MemoryStatus);
tcs.SetResult(true);
}
else
{
throw new Exception("Should not be reached");
}
statusChangedCount++;
};
await SimulateMemoryPressure("warn");
await SimulateMemoryPressure("critical");
await SimulateMemoryPressure("normal");
await tcs.Task;
}
}
public async Task TestMacMemoryMonitorLifetime()
{
var tcs = new TaskCompletionSource <bool> ();
using (var macMonitor = new MacPlatformService.MacMemoryMonitor()) {
// Cancellation is async.
macMonitor.DispatchSource.SetCancelHandler(() => tcs.SetResult(true));
}
Assert.AreEqual(true, await tcs.Task, "Expected cancel handler to be called");
}
public async Task TestMemoryMonitorWithSimulatedValues()
{
using (var monitor = new MacPlatformService.MacMemoryMonitor()) {
var countsReached = new Dictionary <PlatformMemoryStatus, int> ();
monitor.StatusChanged += (o, args) => {
if (!countsReached.TryGetValue(args.MemoryStatus, out int count))
{
count = 0;
}
countsReached [args.MemoryStatus] = ++count;
};
await SimulateMemoryPressure("warn");
await SimulateMemoryPressure("critical");
Assert.That(countsReached [PlatformMemoryStatus.Low], Is.GreaterThanOrEqualTo(1));
Assert.That(countsReached [PlatformMemoryStatus.Critical], Is.GreaterThanOrEqualTo(1));
}
}
