public async Task Differ_T_works()
{
var differ = new Differ <Product>(CONN_STR, KEY_PREFIX);
differ.ParseRow = s => new Product {
Id = s.Split(',')[0],
Name = s.Split(',')[1],
Description = s.Split(',')[2],
Price = decimal.Parse(s.Split(',')[3])
};
differ.GetId = p => p.Id;
// cache is empty. shouldn't be any diffs, but more importantly it shouldn't throw any errors
var diffs = (await differ.GetDiffsAsync()).ToList();
diffs.Should().BeEmpty();
// load day 1. should return all of them as Creates
await differ.LoadCurrentAsync("day1", GetCsvDay1());
diffs = (await differ.GetDiffsAsync()).ToList();
diffs.Should().HaveCount(7).And.OnlyContain(d => d.ChangeType == ChangeType.Create);
// load day 2. should return correct diffs compared to day 1
await differ.LoadCurrentAsync("day2", GetCsvDay2());
diffs = (await differ.GetDiffsAsync()).ToList();
diffs.Should().HaveCount(4);
diffs.Should().ContainSingle(d =>
d.ChangeType == ChangeType.Delete &&
d.Previous.Id == "0003" &&
d.Current == null);
diffs.Should().ContainSingle(d =>
d.ChangeType == ChangeType.Update &&
d.Previous.Id == "0001" &&
d.Previous.Name == d.Current.Name &&
d.Previous.Description == d.Current.Description &&
d.Previous.Price == 10m &&
d.Current.Price == 10.5m);
diffs.Should().ContainSingle(d =>
d.ChangeType == ChangeType.Update &&
d.Previous.Id == "0006" &&
d.Previous.Name == d.Current.Name &&
d.Previous.Price == d.Current.Price &&
d.Previous.Description != d.Current.Description);
diffs.Should().ContainSingle(d =>
d.ChangeType == ChangeType.Create &&
d.Current.Id == "0008" &&
d.Previous == null);
}
public async Task Differ_works()
{
var differ = new Differ(CONN_STR, KEY_PREFIX);
// cache is empty. shouldn't be any diffs, but more importantly it shouldn't throw any errors
(await differ.GetPreviousNotInCurrentAsync()).Should().BeEmpty();
(await differ.GetCurrentNotInPreviousAsync()).Should().BeEmpty();
// load day 1. all should be current not in previous, none vice-versa
await differ.LoadCurrentAsync("day1", GetCsvDay1());
(await differ.GetPreviousNotInCurrentAsync()).Should().BeEmpty();
(await differ.GetCurrentNotInPreviousAsync()).Should().HaveCount(7);
// load day 2. should return correct diffs compared to day 1
await differ.LoadCurrentAsync("day2", GetCsvDay2());
(await differ.GetPreviousNotInCurrentAsync())
.Select(s => s.Substring(0, 4))
.Should().BeEquivalentTo("0001", "0003", "0006");
(await differ.GetCurrentNotInPreviousAsync())
.Select(s => s.Substring(0, 4))
.Should().BeEquivalentTo("0001", "0006", "0008");
}