public async Task LogEntryMultipleContextLimitTest()
{
//Arrange
var dbConnection = new UnitTestDbConnection();
Database.SetInitializer(new DropCreateDatabaseAlways <ZvsContext>());
var log = new DatabaseFeedback(dbConnection);
for (var i = 0; i < 2003; i++)
{
await log.ReportInfoFormatAsync(CancellationToken.None, "hello world {0}", i);
}
using (var context = new ZvsContext(dbConnection))
{
var currentLogEntryCount = context.LogEntries.Count();
var firstentry = await context.LogEntries.OrderBy(o => o.Datetime).FirstAsync();
var lastEntry = await context.LogEntries.OrderByDescending(o => o.Datetime).FirstAsync();
//Aseert
Assert.IsTrue(currentLogEntryCount == 2000, "Expected 2000 entries and got " + currentLogEntryCount);
Assert.IsTrue(firstentry.Message == "hello world 3", "Expected first entry to start with 3");
Assert.IsTrue(lastEntry.Message == "hello world 2002", "Expected last entry to start with 2002");
}
}
public async Task LogEntryLimitMultiThreadedTest()
{
//Arrange
var dbConnection = new UnitTestDbConnection();
Database.SetInitializer(new DropCreateDatabaseAlways <ZvsContext>());
var log = new DatabaseFeedback(dbConnection);
var task1 = Task.Run(async() =>
{
for (var i = 0; i < 1500; i++)
{
await log.ReportInfoFormatAsync(CancellationToken.None, "loop1 {0}", i);
}
});
var task2 = Task.Run(async() =>
{
for (var i = 0; i < 400; i++)
{
await log.ReportInfoFormatAsync(CancellationToken.None, "loop2 {0}", i);
}
});
var task3 = Task.Run(async() =>
{
using (var context = new ZvsContext(dbConnection))
{
for (var i = 0; i < 700; i++)
{
context.LogEntries.Add(new LogEntry
{
Datetime = DateTime.Now,
Level = LogEntryLevel.Info,
Message = $"loop3 {i}",
Source = "Source"
});
}
await context.SaveChangesAsync(CancellationToken.None);
}
});
await Task.WhenAll(task1, task2, task3);
using (var context = new ZvsContext(dbConnection))
{
var currentLogEntryCount = context.LogEntries.Count();
//Assert
Assert.IsTrue(currentLogEntryCount == 2000, "Expected 2000 entries and got " + currentLogEntryCount);
}
}
public async Task LogEntrySingleContextLimitTest()
{
//Arrange
var dbConnection = new UnitTestDbConnection();
Database.SetInitializer(new DropCreateDatabaseAlways <ZvsContext>());
using (var context = new ZvsContext(dbConnection))
{
for (var i = 0; i < 2023; i++)
{
context.LogEntries.Add(new LogEntry
{
Datetime = DateTime.Now,
Level = LogEntryLevel.Info,
Message = $"hello world {i}",
Source = "Source"
});
await Task.Delay(10);
}
await context.SaveChangesAsync(CancellationToken.None);
}
using (var context = new ZvsContext(dbConnection))
{
var currentLogEntryCount = context.LogEntries.Count();
var firstentry = await context.LogEntries.OrderBy(o => o.Datetime).FirstAsync();
var lastEntry = await context.LogEntries.OrderByDescending(o => o.Datetime).FirstAsync();
//Assert
Assert.IsTrue(currentLogEntryCount == 2000, "Expected 2000 entries and got " + currentLogEntryCount);
Assert.AreEqual("hello world 23", firstentry.Message);
Assert.AreEqual("hello world 2022", lastEntry.Message);
}
}