Lo que la red encontró
Cada línea de abajo es una medición, no una opinión. Todas enlazan a una muestra publicada cuyo contract se ejecuta en un contenedor fijado y sin red, así que puedes volver a ejecutarlo y contradecir el resultado.
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597 hallazgos en 8 ecosistemas.
- cargo
- composer
- gem
- golang
- hex
- npm
- pub
- pypi
Lo que dice la muestra y mide su contrato
26–50 de 568, medidos por muestras publicadas.
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golangContrato de muestrago · linux/x64github.com/mattn/go-isatty@v0.0.20
Se creeisatty.IsTerminal and isatty.IsCygwinTerminal inspect terminal and shell environment variables such as TERM or CYGWIN to determine or override terminal detection for redirected descriptors
Medidoisatty.IsTerminal evaluates file descriptors via OS ioctl/syscall and returns false for files and pipes regardless of whether TERM is configured to xterm-256color or another terminal type.
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golangContrato de muestrago · linux/x64github.com/jackc/pgpassfile@v1.0.0
Se creeParsePassfile returns a parsing error when encountering unescaped colons in password fields or parses them as part of the password field.
MedidoParsePassfile silently discards lines with unescaped colons in password fields rather than returning an error or preserving colons, causing FindPassword to return an empty string.
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golangContrato de muestrago · linux/x64github.com/dustin/go-humanize@v1.0.1
Se creeFormatInteger with an empty format string or "#,###" formats an integer with comma thousands grouping and no decimal places
Medidohumanize.FormatInteger with an empty format string returns "12,345.00" rather than "12,345" because it delegates to FormatFloat with the default two-decimal template.
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pypiContrato de muestrapython · linux/x64joblib@1.5.3
Se creeConfiguring parallel_config with prefer='threads' and n_jobs=4 executes subsequent unparameterized Parallel calls across 4 worker threads.
MedidoSetting prefer='threads' in parallel_config with n_jobs=4 switches to ThreadingBackend but silently resets implicit n_jobs in context to 1, while explicit backend='threading' preserves n_jobs=4.
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golangContrato de muestrago · linux/x64github.com/stretchr/testify@v1.11.1
Se creeA testify suite always executes its SetupSuite and TearDownSuite hooks whenever suite.Run is called, even when the testify.m flag filters out all test methods.
MedidoSetting the testify.m flag to a regular expression filters executed test methods and their per-test lifecycle hooks, and skips suite-level SetupSuite and TearDownSuite entirely when zero methods match.
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golangContrato de muestrago · linux/x64github.com/Microsoft/go-winio@v0.6.2
Se creeguid.FromString parses standard Windows registry GUID strings with braces or unhyphenated hex, and ToWindowsArray produces standard RFC 4122 big-endian byte ordering.
Medidoguid.GUID.ToWindowsArray encodes Data1, Data2, and Data3 in little-endian order while preserving Data4, differing from standard RFC 4122 big-endian layout.
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golangContrato de muestrago · linux/x64golang.org/x/sys@v0.30.0
Se creeexecabs.LookPath and execabs.Command resolve and execute bare command names from relative directories when PATH contains '.' or a relative path
Medidoexecabs.LookPath fails with an error and returns an empty string when PATH lookup resolves a bare command name to an executable in the current working directory, and execabs.Command immediately populates cmd.Err to prevent execution.
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npmContrato de muestranode · linux/x64fast-xml-parser@5.11.0
Se creeXMLParser automatically creates an Array for repeated schema elements regardless of whether the document contains one or multiple child tags.
MedidoXMLParser parses single-child elements into plain objects rather than 1-element arrays by default, causing array methods like map to throw TypeError, unless the isArray callback explicitly returns true for the tag or jPath.
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npmContrato de muestranode · linux/x64three@0.185.1
Se creeReturning false from an Object3D.traverse callback aborts traversal or skips subtrees, and child node mutations during traversal are safely handled.
MedidoObject3D.traverse executes a pre-order depth-first traversal across all descendants and ignores boolean return values from callbacks, continuing traversal without early abort or subtree pruning.
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npmContrato de muestranode · linux/x64three@0.185.1
Se creeImageUtils.sRGBToLinear preserves alpha channel transparency untouched when converting canvas ImageData, and Lut maps color gradients bottom-up.
MedidoImageUtils.sRGBToLinear extracts canvas pixel data via CanvasRenderingContext2D.getImageData and applies the sRGB-to-linear conversion curve across all 4 channels, transforming translucent alpha values rather than preserving alpha intact.
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npmContrato de muestranode · linux/x64three@0.185.1
Se creeBufferAttribute.getX indexes raw flat array offsets, divides Int8Array values symmetrically by 128, and modifies Float32Array values when normalized is true.
MedidoBufferAttribute.getX multiplies the passed index by itemSize to access the first component of that logical vertex, rather than accessing the flat array offset directly.
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npmContrato de muestranode · linux/x64react@18.3.1
Se creeReact useId accepts a prefix string parameter to customize generated element IDs and produces unescaped CSS-compatible selector strings.
MedidouseId returns colon-delimited strings like :R0: that ignore any prefix arguments passed to the hook and cannot be used directly in unescaped CSS ID selectors.
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npmContrato de muestranode · linux/x64react@18.3.1
Se creestartTransition accepts async callbacks and returns a Promise tracking the pending transition, maintaining transition batching across await boundaries.
MedidostartTransition returns undefined synchronously even when passed an async callback, and restores the transition batch config to null before any post-await microtasks run.
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cargoContrato de muestrarust · linux/x64regex@1.13.1
Se creeRegexBuilder compiles any syntactically valid regular expression into memory without size constraints and supports standard octal escape sequences by default.
MedidoRegexBuilder::size_limit restricts the compiled regex memory footprint, returning Error::CompiledTooBig with the configured limit when exceeded rather than panicking or truncating the pattern.
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pypiContrato de muestrapython · linux/x64jinja2@3.1.6
Se creea template string ending with a newline will render with that newline intact by default
MedidoEnvironment().from_string('hello\n').render() returns 'hello' rather than 'hello\n', because the default is to strip exactly one trailing newline.
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npmContrato de muestranode · linux/x64pino@9.14.0
Se creeA mixin function that returns a shared object safely adds those properties to the log record while leaving the shared object unmodified.
Medidoreturning a shared object from mixin() results in that object being mutated with the properties of the logged payload, causing subsequent log entries to inherit those properties.
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golangContrato de muestrago · linux/x64github.com/spf13/cobra@v1.9.1
Se creeLocal flags declared on a parent command are parsed when specified before a subcommand name on the command line.
MedidoBy default with TraverseChildren false, passing a parent local flag before a subcommand name fails with an unknown flag error because all preceding flags are evaluated in the child command context.
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npmContrato de muestranode · linux/x64marked@13.0.2
Se creeReturning undefined from a custom marked renderer method falls back to the default renderer rather than suppressing output.
MedidoReturning undefined from a custom renderer method produces an empty string rather than delegating to the default renderer, which requires returning explicit boolean false.
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npmContrato de muestranode · linux/x64happy-dom@20.11.2
Se creeEvaluating scripts in a GlobalWindow executes in an isolated window context where bare window and document identifiers resolve to the instance.
MedidoDOM scripts evaluated in GlobalWindow run in host globalThis without a VM context, causing unqualified window references to throw ReferenceError rather than resolving the window instance
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npmContrato de muestranode · linux/x64happy-dom@20.11.2
Se creereadAsString() and read() inspect captured virtual console logs non-destructively without clearing the internal buffer until an explicit clear() invocation.
MedidoVirtualConsolePrinter.read() and readAsString() destructively drain the internal log buffer upon invocation, causing subsequent immediate reads to return empty results.
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npmContrato de muestranode · linux/x64minimatch@10.1.1
Se creeslashless glob patterns match file basenames at any directory depth when filtering path arrays
Medidominimatch.filter generates a curried predicate function for Array.prototype.filter where slashless patterns match root paths by default and match base filenames across directories when matchBase is enabled
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npmContrato de muestranode · linux/x64minimatch@10.1.1
Se creeminimatch.escape prefixes backslashes before all special characters including Windows path separators and braces
Medidominimatch.escape wraps wildcard and grouping characters in single-character classes rather than prefixing backslashes when windowsPathsNoEscape is enabled, preserving backslash directory separators while leaving braces unescaped unless magicalBraces is set
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npmContrato de muestranode · linux/x64fast-glob@3.3.3
Se creefg.sync with stats: true returns string path arrays unless objectMode is explicitly requested, flat basename patterns never match nested directories, and pattern array order changes negative pattern filtering.
Medidofg.sync with stats: true automatically produces an array of Entry objects containing fs.Stats and Dirent instances without requiring objectMode: true.
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golangContrato de muestrago · linux/x64github.com/caddyserver/caddy/v2@v2.11.4
Se creeA bare numeric address like "8080" configures listening port 8080, and URI schemes like "tcp://localhost:2019" parse as standard TCP addresses.
Medidocaddy.ParseNetworkAddress("8080") parses 8080 as the hostname with StartPort 0, while ":8080" is required to configure port 8080.
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pypiContrato de muestrapython · linux/x64requests@2.34.2
Se creeCustom transport adapters receive allow_redirects directly in send() kwargs and must handle redirect following themselves.
MedidoBaseAdapter.send is an unimplemented interface method that raises NotImplementedError, requiring custom adapters to supply transport execution.
Cómo comprobar cualquier línea de aquí
Abre la muestra, lee su contract y ejecútalo. El contract es la propia prueba de la muestra: se ejecuta sin red en un contenedor fijado, y el recibo firmado de esa ejecución es lo que la red guarda. Nada de esto depende de cómo leamos una biblioteca, solo de lo que la biblioteca hizo.
Algunas muestras publicadas no están en esta página. Su contrato pasó y la muestra está activa, pero ninguna línea de ese contrato se lee como una frase. Una aserción como expect(x).toBe(1), puesta junto a la creencia que comprueba, no le dice nada a quien lee. Preferimos dejarlas fuera antes que publicar pruebas que nadie puede leer.