6 posts filed under Data. Subscribe to this category or read every post.
Clock skew across hosts, timestamps out of order, a stack trace spanning twelve lines, and NaN in a Prometheus gauge. The telemetry shapes that break ingest.
Testaroo · Guide · Advanced · v2026.09
Read the post →Nested MIME, four charsets in one mailbox, authentication headers that pass and fail, and a bounce that looks like a reply. Test your parser against real message shapes.
Testaroo · Guide · Intermediate · v2026.09
Read the post →Antimeridian crossings, unnormalised longitudes, silent CRS assumptions, and a shapefile that is really five files. Test the cases that break importers.
Testaroo · Guide · Intermediate · v2026.09
Read the post →Extractors fail on codecs they never linked, filenames they cannot decode, and nesting they never expected. Here is how to find out before your users do.
Testaroo · Guide · Intermediate · v2026.09
Read the post →Exercise OpenAPI, JSON Schema, pagination, and webhook parsers against deterministic valid twins and intentionally invalid SAMPLE payloads.
Testaroo · Guide · Intermediate · v2026.08
Read the post →Quoted commas, embedded newlines, ragged rows, odd delimiters, and encodings. The CSV cases every parser should survive.
Testaroo · Guide · Intermediate · v2026.08
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