public async Task AreExistingMethodShouldReturnFalseIfIdNotExists()
{
var options = new DbContextOptionsBuilder <ForumDbContext>()
.UseInMemoryDatabase(Guid.NewGuid().ToString())
.Options;
var db = new ForumDbContext(options);
var dateTimeProvider = new Mock <IDateTimeProvider>();
dateTimeProvider.Setup(dtp => dtp.Now()).Returns(new DateTime(2020, 3, 27));
for (int i = 0; i < 3; i++)
{
await db.Tags.AddAsync(new Tag
{
Name = $"Test {i}",
CreatedOn = dateTimeProvider.Object.Now()
});
}
await db.SaveChangesAsync();
var ids = new[] { 1, 2, 3, 4, 5 };
var tagsService = new TagsService(db, null, dateTimeProvider.Object);
var areExisting = await tagsService.AreExistingAsync(ids);
areExisting.Should().BeFalse();
}
