Test-Driven Development with React and TypeScript Building Maintainable React Applications ▫️Автор: Джунтао Цю ▫️Год издания: 2023 ▫️2-е издание ▫️295 страниц ▫️Аннотация издательства Springer: "Книга обучает практическим навыкам, необходимым для внедрения тестоориентированной разработки в повседневную работу с использованием React. Последние лучшие практики TDD, включая использование новых фреймворков для тестиро…

Channel
🐞Библиотека QA
@qa_lib
On this record: Topic · Growth · Engagement · What this channel posts · Advertising · Posts · Citations · Telegram's recommendations · Cite this entry
5,970subscribers
-74 since we began measuring on 7 August 2026
Risers and fallers across the register · movement among entries of 3,162–10,000.
Register entry
| Telegram ID | -1001566687826 |
|---|---|
| Type | Channel |
| Username | @qa_lib |
| Created | Between 1 August 2021 and 28 February 2023 — estimated from Telegram’s id allocation, not measured. How this range is calculated. |
| First recorded | 7 August 2026 |
| Last confirmed live | 6 October 2026 |
| Measurements held | 15 |
| Confirmed unchanged | 1 time, most recently 6 October 2026 |
| On Telegram | t.me/qa_lib |
Topic
Education — a classification, not a measurement. An on-box language model (Qwen3.6-35B-A3B-FP8, prompt version 1) read this channel’s own recent posts on 12 September 2026 and assigned it the closest of 31 fixed categories, at 93% confidence. This is a model’s judgement about what the channel is likely to be about, not a fact this register measured the way a subscriber count or a view count is measured — it can be revised on a later pass, and it carries no weight anywhere else on this page. How this classification works, and why it has no browse page of its own yet.
Growth
| Measured (UTC) | Subscribers | Change |
|---|---|---|
| 6 Oct 2026, 15:17 | 5,970 | -14 |
| 29 Sept 2026, 07:39 | 5,984 | -6 |
| 19 Sept 2026, 01:59 | 5,990 | -3 |
| 14 Sept 2026, 14:38 | 5,993 | -6 |
| 10 Sept 2026, 22:36 | 5,999 | -10 |
| 5 Sept 2026, 17:59 | 6,009 | -8 |
| 2 Sept 2026, 04:13 | 6,017 | -3 |
| 30 Aug 2026, 12:48 | 6,020 | -3 |
| 27 Aug 2026, 03:52 | 6,023 | -5 |
| 24 Aug 2026, 05:34 | 6,028 | -5 |
| 20 Aug 2026, 10:45 | 6,033 | -7 |
| 13 Aug 2026, 23:36 | 6,040 | -1 |
| 10 Aug 2026, 12:35 | 6,041 | -3 |
| 7 Aug 2026, 20:02 | 6,044 | no change |
| 7 Aug 2026, 12:17 | 6,044 | first reading |
Engagement
20 posts held, back to 27 May 2026 — the reader has not yet reached the start of this channel’s public history, so older posts may sit further back, unread. Read across 9 pages of Telegram’s post history, 20 posts per page.
Nothing published in the last 30 days. ERR and ER are rolling 30-day measures, so there is nothing to compute — we hold 20 posts for this entry, the most recent from 4 August 2026. An engagement rate over an empty window would be a number about nothing.
What this channel posts
- Video runtime
- 7s
- Average length
- 7s
Measured directly from 1 video with a duration reading, out of the posts we hold for this channel — not this channel’s whole posting history, only the sample this register has actually read. An exact reading to the second, taken from the post itself rather than from Telegram’s own rounded chrome, so it carries no ≈ mark.
Advertising
- Ad load
- 10.0%
- 2 of 20 posts carry an ad marker
- Regulatory tokens
- 2
- posts carrying an erid · 2 distinct tokens
- Median views · ads
- 798
- over 2 measured posts
- Median views · rest
- 709
- over 18 measured posts
An ad marker, not a judgement about a post. A post is counted here because it carries one of two explicit markings: an erid token, which Russian law has required on paid placements since 2022 and which is issued against a specific advertising contract, or a #реклама / #ad hashtag in the body, which is the channel declaring it itself. The first is documentary; the second is a self-declaration and is weaker. No classifier reads the text and decides — nothing on this site guesses that a post is an advertisement.
This is a floor, and it can only ever be a floor. A channel that runs paid placements without marking them produces no marker for us to count, and an unmarked ad is indistinguishable from an ordinary post on the public surface. The ad load above therefore means “the share of posts that declared themselves”, never “the share of posts that were paid for”. A low figure is not evidence of a channel that runs few ads.
Both figures are medians, and no ratio between them is published. Each is a view reading that actually occurred on a post, picked by percentile_disc rather than averaged, so one viral post cannot move it and no interpolated value is invented between two readings. The sample on one side is under five posts, which is too thin to compare. The two figures are shown side by side with the count behind each, and deliberately not divided into a headline like “ads get x% fewer views” — an arithmetic that is easy to print and, at this sample size, means nothing.
| erid | Posts | First seen | Last seen |
|---|---|---|---|
| 2VtzqwFZAzL | 1 | 27 May 2026 | 27 May 2026 |
| 2VtzqwgpJuo | 1 | 22 June 2026 | 22 June 2026 |
A token repeated across several posts is one advertising contract placed more than once, which is what the identifier is for. The strings are reproduced exactly as they appeared in the post or in its click-through URL and are not validated against any registry — we record the marker a channel published, and whether it resolves to a real contract is a question for the register that issued it.
Measured over the 20 most recent posts we hold, published 27 May 2026 to 4 August 2026. Views are the latest single reading held for each post, and any reading at or above 1,000 is rounded by Telegram to three significant figures.
Recent posts
🤔 Не знаете, с чего начать первое нагрузочное тестирование? 13 августа в 20:00 МСК на вебинаре разберем минимальный план первого нагрузочного тестирования: как выбрать инструмент нагрузки, какие запросы тестировать, как настроить базовый мониторинг и что делать с результатами. В результате вы получите понятный алгоритм для старта, разберетесь, как собрать рабочий минимум без лишней сложности, и поймете, куда разви…
Fundamentals of Software Testing Автор: Bernard Homès Год: 2024 Страниц: 384 Аннотация С момента выхода первого издания этой книги в 2011 году тестирование программного обеспечения претерпело значительные изменения. Теперь от тестировщиков требуется работать в "agile" командах и сосредоточиться на автоматизации тестовых случаев. Поэтому возникла необходимость обновить эту работу, чтобы предоставить фундаментальные …
"Как тестируют в Google" на русском ▪️Авторы: Джеймс Уиттакер, Джейсон Арбон, Джефф Каролло ▪️Год: 2014 ▪️Страниц: 320 ▪️О чем книга: В книге описано тестирование программных продуктов в Google: как устроены процессы, как организованы команды, какие техники используются, кто ответственен за качество. Принципы, на которых построено тестирование в Google, применимы в проектах и компаниях любого размера. Авторы книги …
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Showing the 12 most recent of 20 posts we hold for @qa_lib. View and reaction counts are the latest single reading for each post, not a live figure, and a recent post is still accumulating both. A view count marked ≈ was rounded by Telegram before we ever saw it — t.me prints views in full below 1,000 and to three significant figures above, so ≈1,200,000 means somewhere between 1,150,000 and 1,249,999. Unmarked counts are exact. Text is reproduced from the public post preview and truncated for length.
Mentions
Named by 1 registered channel — every channel on the register whose own posts have named this one, by its current username or any other username it currently holds, merged from two separately captured readings of the same fact so a namer caught by only one of them is not missed and a namer both caught is not counted twice. A username this channel has since dropped is not matched — that handle may belong to someone else now, and crediting today’s namer to yesterday’s owner would misattribute it.
Named by
Channels on the register whose posts name this channel's handle.
Names
Channels on the register whose handles appear in this channel's posts.
A mention is a weaker signal than a forward and is counted separately for that reason — naming a channel is not republishing it, and a handle in a post body is easy to place deliberately. The post counts beside each row below are distinct posts in which the handle appeared, from posts we have read on both sides — the “Named by N registered channels” figure above is a different count, of distinct NAMING CHANNELS rather than posts, and is not the sum of the rows under it.
Appears in Telegram’s recommendations for other channels
The reverse of the list above, and a different kind of signal. This does not require this channel to have ever been asked about directly — each row below is a channel we DID ask Telegram about, whose Telegram-generated list happened to include this one. A channel can appear here with an empty list above it, because being named by someone else’s query is independent of having been queried itself.
@godoftesting · 29,459
Telegram ranks this channel #8 of 90 here — alongside 89 others — read 8 September 2026
@forallqa · 22,729
Telegram ranks this channel #15 of 95 here — alongside 94 others — read 20 September 2026
@serious_tester · 29,983
Telegram ranks this channel #25 of 92 here — alongside 91 others — read 7 September 2026
@qachanell · 30,260
Telegram ranks this channel #38 of 92 here — alongside 91 others — read 7 September 2026
@qajoboffer · 20,485
Telegram ranks this channel #42 of 92 here — alongside 91 others — read 27 September 2026
@itevents · 19,759
Telegram ranks this channel #49 of 94 here — alongside 93 others — read 30 September 2026
@qa_sklad · 23,282
Telegram ranks this channel #49 of 94 here — alongside 93 others — read 18 September 2026
This channel appears in 7 seed channels' Telegram-generated recommendation lists in total. Each is Telegram’s list for THAT channel, not this one — see how this is measured.
Cite this entry
A live page changes as we take new readings, so a citation should name the measurement it is based on, not just the URL. The line below cites the subscriber count as measured 6 October 2026 — this entry's latest reading, not the date you are reading this.
“🐞Библиотека QA” (@qa_lib), 5,970 subscribers as measured 6 October 2026. Telegram Register, tgregister.com/channel/qa_lib.
Full measurement history, CC BY 4.0. Every reading this register holds for this entry, not just the latest one, as a dated, downloadable record: CSV · JSON. Free to use with attribution to tgregister.com. Each file carries its own generation timestamp, which is the figure to cite for exactly when the data was retrieved.