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A day of IoT sensor readings (temperature, humidity, pressure) at one-minute intervals from three sensors, with a realistic daily cycle plus noise, for testing time-series ingestion and downsampling. JSON twin included.
The IoT sensor readings as a JSON array: the format twin of the CSV, for time-series testing.
Synthetic iot dataset (sensor-readings-mini) as CSV, for ETL and warehouse loader tests.
JSON twin of the iot/sensor-readings-mini mini-dataset.
A real ISO 9660 disk image with Joliet and Rock Ridge extensions for long filenames, holding a few documented text files. For testing ISO mounting, extraction, and conversion.
A sample ISO 20022 customer credit-transfer initiation (pain.001.001.09): a single payment with debtor/creditor parties, IBANs, BICs, amount, and remittance info. IBANs are published documentation examples; a fixture for testing payment-message parsers and bank integrations.
The checkout trace in the Jaeger query-API shape: a data array holding one trace, spans carrying microsecond startTime and duration, CHILD_OF references, typed tags and a per-service processes map. The same span tree as the OTLP and Zipkin twins, so a converter can be scored exactly.
A Java Archive (JAR): a ZIP with a META-INF/MANIFEST.MF and resource files only (no .class bytecode). For testing JAR/ZIP readers and manifest parsing.
The nested-JAR layout an executable fat jar uses: a manifest with a Class-Path entry and a second JAR stored uncompressed under BOOT-INF/lib so it can be read in place without being extracted first. It contains resources only - properties, JSON and text, no compiled bytecode - and the manifest uses the CRLF line endings the JAR specification requires.
Intentionally lint-bait SAMPLE java snippet (empty-catch-invalid) for rule-engine tests.
The .properties edge cases collected in one file: both comment markers, empty values, a value whose trailing spaces are significant, unescaped = and : inside values, a # that is not a comment, escape sequences, an escaped space in a key, and a duplicate key.
Java record type hello for javac / highlighter fixtures.
A English Java ResourceBundle with MessageFormat patterns, a ChoiceFormat plural, positional arguments, escaped braces and apostrophes, a backslash line continuation, and non-ASCII carried as \uXXXX escapes because .properties is defined as ISO-8859-1. The bytes on disk are pure ASCII.
A German Java ResourceBundle with MessageFormat patterns, a ChoiceFormat plural, positional arguments, escaped braces and apostrophes, a backslash line continuation, and non-ASCII carried as \uXXXX escapes because .properties is defined as ISO-8859-1. The bytes on disk are pure ASCII.
A realistic Java stack trace: a Spring-style NullPointerException with a nested 'Caused by' chain and '... N more' elision. A fixture for testing stack-trace parsers, error groupers, and log viewers.
A realistic Java class with a package declaration, fields, a nested record, methods that throw exceptions, and formatted output, for testing highlighters, javac, Checkstyle, and parsers.
The classic hello-world in Java (a public class with the standard main method) for testing highlighters, javac, and Java parsers.
Intentionally lint-bait SAMPLE javascript snippet (eqeqeq-invalid) for rule-engine tests.
Intentionally lint-bait SAMPLE javascript snippet (var-shadow-invalid) for rule-engine tests.
The classic hello-world in modern JavaScript: a minimal function calling console.log, for testing highlighters, Node, and JS parsers.
Intentionally corrupt JavaScript object literal, labelled invalid for error handling. Labelled intentionally invalid in title and description.
A realistic JavaScript snippet with an ES class, private #fields, arrow functions, template literals, a getter, and async/await, for testing highlighters, ESLint, Prettier, and bundlers.
A declarative Jenkins matrix over two axes with a nested excludes block: six platform/arch combinations minus the windows arm64 pair leaves five cells, documented in the specs so an expansion can be scored exactly.
A Jenkinsfile importing a pinned shared library and calling three custom steps that no static parser can resolve locally. For testing how tooling reports unknown steps and whether it records the library dependency and its version pin.
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