public void CreateInstanceUpdateMessagesWorksForManyInstances()
{
int numberInstances = (4 * UpdateInstances.MaximumInstanceChunkSize) + 7;
var messages = UpdateInstances.CreateInstanceUpdateMessages(UpdateInstancesTest.CreateInstances(numberInstances)).ToList();
Assert.True(
7 == messages.Count,
"There should be seven messages: One to clear old instances, five to add new ones, and one to complete the instance update.");
Assert.True(messages[0] is ClearInstances, "The first message should clear old instances.");
for (int i = 1; i <= 4; i++)
{
Assert.True(messages[i] is AddInstances <TestInstance>, $"The {i}th message should add new instances.");
UpdateInstancesTest.CheckAddMessageContainsCorrectInstances(
(AddInstances <TestInstance>)messages[i],
firstInstanceIdentifier: (i - 1) * UpdateInstances.MaximumInstanceChunkSize,
numberInstances: UpdateInstances.MaximumInstanceChunkSize);
}
Assert.True(
messages[5] is AddInstances <TestInstance>,
"The fifth message should add the remaining instances.");
UpdateInstancesTest.CheckAddMessageContainsCorrectInstances(
(AddInstances <TestInstance>)messages[5],
firstInstanceIdentifier: 4 * UpdateInstances.MaximumInstanceChunkSize,
numberInstances: 7);
Assert.True(messages[6] is InstanceUpdateFinished, "The seventh message should complete the update process.");
}
public void CreateInstanceUpdateMessagesWorksForFewInstances()
{
var messages = UpdateInstances.CreateInstanceUpdateMessages(UpdateInstancesTest.CreateInstances(number: 2)).ToList();
Assert.True(
3 == messages.Count,
"There should be two messages: One to clear old instances, one to add new ones, and one to complete the instance update.");
Assert.True(messages[0] is ClearInstances, "The first message should clear old instances.");
Assert.True(messages[1] is AddInstances <TestInstance>, "The second message should add new instances.");
Assert.True(messages[2] is InstanceUpdateFinished, "The third message should complete the update process.");
UpdateInstancesTest.CheckAddMessageContainsCorrectInstances(
(AddInstances <TestInstance>)messages[1],
firstInstanceIdentifier: 0,
numberInstances: 2);
}
public void CreateInstanceUpdateMessagesWorksForEdgeCases()
{
int numberInstances = 2 * UpdateInstances.MaximumInstanceChunkSize;
var messages = UpdateInstances.CreateInstanceUpdateMessages(UpdateInstancesTest.CreateInstances(numberInstances)).ToList();
Assert.True(
4 == messages.Count,
"There should be four messages: One to clear old instances, two to add new ones, and one to complete the instance update.");
Assert.True(messages[0] is ClearInstances, "The first message should clear old instances.");
for (int i = 1; i <= 2; i++)
{
Assert.True(messages[i] is AddInstances <TestInstance>, $"The {i}th message should add new instances.");
UpdateInstancesTest.CheckAddMessageContainsCorrectInstances(
(AddInstances <TestInstance>)messages[i],
firstInstanceIdentifier: (i - 1) * UpdateInstances.MaximumInstanceChunkSize,
numberInstances: UpdateInstances.MaximumInstanceChunkSize);
}
Assert.True(messages[3] is InstanceUpdateFinished, "The fourth message should complete the update process.");
}