Что нашла сеть
Каждая строка ниже — измерение, а не мнение. Каждая ведёт к опубликованному образцу, contract которого выполняется в закреплённом контейнере с отключённой сетью, так что его можно перезапустить и оспорить результат.
Система и среда взяты из записи связанного образца; записи без выбранного измерения исключаются.
597 находок в 8 экосистемах.
- cargo
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- golang
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- npm
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- pypi
Что заявляет образец и что измеряет его контракт
326–350 из 568, измеренных опубликованными образцами.
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pubКонтракт образцаdart · linux/x64equatable@2.1.0
СчитаетсяA class extending Equatable automatically formats its fields in toString() output by iterating over its overridden props.
Измереноif (User('alice').toString() != 'User') throw 'toString defaults to just the class name, not the formatted props';
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pubКонтракт образцаdart · linux/x64equatable@2.1.0
СчитаетсяExtending Equatable automatically includes instance properties in toString() output without requiring explicit configuration or debug assert flags.
ИзмереноCalling toString() on an Equatable instance without explicit stringify overrides returns only the runtimeType string 'DefaultItem' rather than 'DefaultItem(a, 42)' when assertions are not enabled.
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pubКонтракт образцаdart · linux/x64equatable@2.0.8
СчитаетсяEquatable evaluates two instances holding maps with different keys as non-equal even if all values in those maps are null.
ИзмереноComparing Equatable objects containing maps with disjoint keys like {'keyA': null} and {'keyB': null} evaluates to false because missing keys are checked with containsKey rather than resolving to null.
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pubКонтракт образцаdart · linux/x64crypto@3.0.6
СчитаетсяPassing integers outside 0..255 to Hash.convert raises an ArgumentError or RangeError on invalid byte values.
Измереноsha256.convert([256, -1, 300]) raises no error and silently masks each integer to 8 bits, returning the exact same digest as sha256.convert([0, 255, 44]) rather than throwing an ArgumentError
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pubКонтракт образцаdart · linux/x64collection@1.19.1
СчитаетсяbinarySearch returns the index of the first occurrence of the target element in the sorted list.
Измереноif (binarySearch(list, 2) != 3) throw 'binarySearch returns an arbitrary match (3) rather than the first occurrence (1)';
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pubКонтракт образцаdart · linux/x64crypto@3.0.7
СчитаетсяA Digest constructed from a byte list is immutable and copies the backing list to prevent modification of its hash representation, and comparing two digests' bytes directly via the == operator checks for value equality.
Измереноassert that a Digest constructed with a mutable List holds that list by reference, so modifying the list externally alters the Digest's bytes, its hex string representation, and its hash code
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pubКонтракт образцаdart · linux/x64collection@1.19.0
СчитаетсяCalling removeAll on a PriorityQueue empties the queue and returns all elements sorted in priority order.
ИзмереноPriorityQueue.removeAll empties the queue and returns elements in unsorted internal binary heap storage order (yielding [5, 20, 10, 40, 50, 30] for elements [40, 10, 30, 20, 50, 5]) rather than priority order [5, 10, 20, 30, 40, 50], which requires repeatedly calling removeFirst.
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pubКонтракт образцаdart · linux/x64collection@1.18.0
СчитаетсяSlicing a ListSlice of a ListSlice returns a sub-slice with elements offset by the sum of both slice start indices.
ИзмереноSlicing a ListSlice of a ListSlice yields a sub-slice with the correct offset relative to the parent slice.
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pubКонтракт образцаdart · linux/x64collection@1.19.1
СчитаетсяA priority queue should return the largest value first when no comparator is supplied.
ИзмереноA `PriorityQueue` without a comparator argument is a min-heap, so `removeFirst()` returns 1 before 3 from [3, 1, 5].
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pubКонтракт образцаdart · linux/x64collection@1.19.1
СчитаетсяAssigning a value to an invalid key on a CanonicalizedMap throws an ArgumentError, and putIfAbsent rejects invalid keys identically.
ИзмереноCanonicalizedMap operator []= silently discards assignments for keys rejected by isValidKey without throwing an ArgumentError, leaving map length at 0 and containsKey returning false.
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pubКонтракт образцаdart · linux/x64collection@1.19.1
СчитаетсяCalling cast on a CanonicalizedMap returns a valid Map wrapper that soundly checks and casts its keys and values for runtime lookups and iterations.
ИзмереноCalling cast on a CanonicalizedMap returns a map view that throws a TypeError on value retrieval, because it delegates to the underlying map containing MapEntry elements instead of unpacking them.
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pubКонтракт образцаdart · linux/x64collection@1.19.0
СчитаетсяCalling `mergeSort` with an explicit supertype, such as `mergeSort<num>`, should be treated as a normal typed call even when the argument is a `List<int>`.
Измерено`mergeSort<num>` on a `List<int>` completes without throwing and sorts the list in place.
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pubКонтракт образцаdart · linux/x64args@2.6.0
СчитаетсяWhen an option expecting a value is immediately followed by a registered flag like --verbose, ArgParser.parse throws an ArgParserException for a missing option value and evaluates --verbose as a flag.
ИзмереноArgParser.parse consumes an immediately following --verbose flag token as the literal string value of an option expecting a value, leaving the flag unparsed and false.
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pubКонтракт образцаdart · linux/x64args@2.4.2
СчитаетсяOmitting a mandatory option when parsing command line arguments with ArgParser causes parse() to throw an ArgParserException during the parse call.
ИзмереноArgParser.parse() in args 2.4.2 returns an ArgResults instance when a mandatory option is omitted, deferring mandatory validation failure to ArgResults operator [] access where it throws ArgumentError instead of throwing during parse() as in args 2.4.1.
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pubКонтракт образцаdart · linux/x64args@2.7.0
СчитаетсяConcurrent invocations of CommandRunner.run maintain isolated argResults and globalResults bindings for each command execution across asynchronous await points.
ИзмереноCalling CommandRunner.run concurrently while a command is awaiting an asynchronous operation overwrites Command.argResults and Command.globalResults mid-execution with the newly parsed values.
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pubКонтракт образцаdart · linux/x64args@2.7.0
СчитаетсяA multi-option should keep each argument token as one string unless parsing rules are explicitly changed.
ИзмереноArgParser.addMultiOption splits comma-separated values by default, so passing '--define env=prod,region=us-east' yields ['env=prod', 'region=us-east'] rather than the original single string.
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pubКонтракт образцаdart · linux/x64args@2.7.0
СчитаетсяArgResults allows retrieving parsed option and flag values using either their canonical name or any configured alias.
ИзмереноArgResults throws an ArgumentError when queried with an alias name via operator [] or wasParsed(), requiring all lookups to use the canonical option name regardless of how the option was supplied on the command line.
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pubКонтракт образцаdart · linux/x64args@2.7.0
СчитаетсяArgParser.parse always throws an ArgParserException when a mandatory option is missing from the arguments.
ИзмереноArgParser.parse does not throw an ArgParserException when a missing mandatory option has no callback, returning a successful ArgResults instead.
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pubКонтракт образцаdart · linux/x64args@2.7.0
СчитаетсяWhen allowTrailingOptions is false, option-like arguments after the first positional argument still trigger validation, and the double-dash separator is consumed as a special token.
ИзмереноDisabling allowTrailingOptions causes option-like arguments and the double-dash separator after a positional argument to be treated as literal positional arguments in results.rest rather than being parsed or consumed.
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npmКонтракт образцаnode · linux/x64vue@3.5.41
СчитаетсяReading a nested property from a shallowRef inside watchEffect makes that nested property reactive, so direct nested mutations rerun the effect.
Измереноassert directly mutating a nested property inside shallowRef does not rerun watchEffect even after the next scheduler tick
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npmКонтракт образцаnode · linux/x64react-dom@18.3.1
СчитаетсяrenderToPipeableStream returns a Node.js Readable stream or a Promise resolving to one, while renderToString throws when encountering suspended components
ИзмереноrenderToPipeableStream returns a synchronous { pipe, abort } controller object that is neither a Readable stream nor a Promise, where pipe(dest) returns the passed writable destination
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npmКонтракт образцаnode · linux/x64puppeteer@24.43.1
СчитаетсяCustom query handlers in Puppeteer can be registered globally via puppeteer.registerCustomQueryHandler with hyphenated or snake_case names.
Измереноpuppeteer.registerCustomQueryHandler is undefined in Puppeteer v24 and custom query handlers must be registered via the named customQueryHandlers export using names matching only [a-zA-Z].
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npmКонтракт образцаnode · linux/x64puppeteer@24.2.1
СчитаетсяA CDPSession continues attempting raw protocol message dispatch when sent a command, even after its underlying connection is marked closed.
ИзмереноIn puppeteer 24.2.1 compared to 24.2.0, calling send() on a CDPSession whose underlying CDP connection is closed immediately rejects with TargetCloseError.
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npmКонтракт образцаnode · linux/x64marked@18.0.0
СчитаетсяUnlike walkTokens which mutates tokens in-place without a return value, Marked's processAllTokens hook requires returning the modified token list.
ИзмереноA processAllTokens hook that mutates tokens in-place without returning them causes Marked.parse to throw a TypeError: Cannot read properties of undefined (reading 'length'), whereas explicitly returning the modified token array permits successful rendering.
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npmКонтракт образцаnode · linux/x64marked@18.0.6
СчитаетсяAn ordered list starting with a number other than 1 cannot interrupt a blockquote and is instead parsed as a lazy continuation of the blockquote paragraph, matching standard paragraph interruption rules.
ИзмереноAn ordered list starting with a number other than 1 that immediately follows a blockquote parses as a sibling ordered list rather than being nested inside the blockquote.
Как проверить любую строку здесь
Откройте образец, прочитайте его contract, запустите. Contract — это собственный тест образца: он выполняется без сети в закреплённом контейнере, и подписанная квитанция этого запуска — то, что хранит сеть. Ничто здесь не опирается на наше прочтение библиотеки — только на то, что библиотека сделала.
Некоторых опубликованных образцов на этой странице нет. Их контракт прошёл, и образец жив — но ни одна строка этого контракта не читается как фраза. Утверждение вроде expect(x).toBe(1), поставленное рядом с убеждением, которое оно проверяет, ничего читателю не говорит. Лучше оставить их за бортом, чем печатать свидетельство, которое никто не прочтёт.