public async Task UpdateSucceedsIfExpectedChangeTokenMatches()
{
DbContextDataProvider <DefaultDataProvider, TestContext> provider = CreateProvider();
string changeToken = Guid.NewGuid().ToString("N");
ITokenGenerator generator = CreateTokenGenerator(changeToken);
TestContext testContext = provider.GetContext();
var dbEntity = new DbEntityWithChangeToken()
{
ChangeToken = changeToken
};
testContext.ChangeTokenEntities.Add(dbEntity);
await testContext.SaveChangesAsync();
TestContextChangeTokenExRepository repository = CreateChangeTokenExRepository(provider, generator);
await repository.UpdateAsync(
new EntityWithChangeTokenEx { Id = dbEntity.Id, ChangeToken = "abc", ExpectedChangeToken = changeToken },
CancellationToken.None);
}
public async Task UpdateThrowsIfExpectedChangeTokenDoesNotMatch()
{
DbContextDataProvider <DefaultDataProvider, TestContext> provider = CreateProvider();
string changeToken = Guid.NewGuid().ToString("N");
ITokenGenerator generator = CreateTokenGenerator(changeToken);
TestContext testContext = provider.GetContext();
var dbEntity = new DbEntityWithChangeToken()
{
ChangeToken = changeToken
};
testContext.ChangeTokenEntities.Add(dbEntity);
await testContext.SaveChangesAsync();
TestContextChangeTokenExRepository repository = CreateChangeTokenExRepository(provider, generator);
await Assert.ThrowsAsync <EntityConcurrencyException>(
() => repository.UpdateAsync(
new EntityWithChangeTokenEx {
Id = dbEntity.Id, ExpectedChangeToken = "abc"
},
CancellationToken.None));
}