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Text Embeddings: 8-dim (JSON)

L2-normalised 8-dimensional text embeddings in JSON, for vector store loader tests.

File: JSON · Embeddings · 12 rows
Use case: ML training dataJSON parsing· Conversion set

Text Embeddings: 8-dim (NPY)

NumPy matrix twin of the Wave F 8-dim embeddings.

File: NPY · Embeddings
Use case: ML training data· Conversion set

Preview of Textual Input Types (HTML) — Actual file preview for Textual Input Types (HTML)

The six textual HTML input types on a single page, each with the autocomplete token and validation attributes it normally carries, so a parser can be checked type by type rather than against a mixed realistic form.

File: HTML · Software Quality · 8 fields
Use case: Form testingForm parsing+3

Texture: Checkerboard

A 256×256 checkerboard texture that tiles seamlessly, for testing texture mapping, pattern fills, tiling, and background rendering.

File: PNG · Texture
Use case: Image pipeline QA· Conversion set

Texture: Diagonal Stripes

A 256×256 diagonal stripes texture that tiles seamlessly, for testing texture mapping, pattern fills, tiling, and background rendering.

File: PNG · Texture
Use case: Image pipeline QA· Conversion set

Texture: Grain

A 256×256 grain texture, for testing texture mapping, pattern fills, tiling, and background rendering.

File: PNG · Texture
Use case: Image pipeline QA· Conversion set

Texture: Grid

A 256×256 grid texture that tiles seamlessly, for testing texture mapping, pattern fills, tiling, and background rendering.

File: PNG · Texture
Use case: Image pipeline QA· Conversion set

Texture: Polka Dots

A 256×256 polka dots texture that tiles seamlessly, for testing texture mapping, pattern fills, tiling, and background rendering.

File: PNG · Texture
Use case: Image pipeline QA· Conversion set

Textured Cube: UV + embedded PNG (GLB)

A UV-mapped cube with an embedded 128×128 checkerboard PNG texture and a PBR material, all packed into one self-contained GLB. A fixture for testing texture and UV handling, embedded-image extraction, and PBR material loading.

File: GLB · Textured
Use case: Conversion testing

TGA: Truevision Test Image

A 256×256 fruit still-life image saved as uncompressed Truevision TGA: a format common in games and 3D texturing. For testing TGA decoders and conversion to modern formats.

File: TGA · Raster Formats · 256 × 256 px
Use case: Conversion testing

TGZ - Empty Archive

The empty tar wrapped in gzip, which is what `tar czf` produces from an empty directory. The gzip header and trailer are still there and still have to parse, so this separates 'cannot read the codec' from 'read the codec and found nothing inside'.

File: TGZ · Empty · 0 members
Use case: Conversion testingError handling· Conversion set

TGZ Containing a TGZ

A gzipped tar whose second member is another gzipped tar. Tools that apply decompression greedily - gunzip until the bytes stop being gzip - skip straight past the outer tar and report the inner archive's two members as if they were the whole thing.

File: TGZ · Nested Mixed
Use case: Conversion testingCompression testing· Conversion set

TGZ: Nested Companion SAMPLE

Gzipped tarball SAMPLE companion for nested-archive conversion sets.

File: TGZ · Nested · 2 members
Use case: Conversion testing

Thermocouple Time Series With Standard Uncertainty (.csv)

A full day of thermocouple readings at 30-minute cadence with a constant type-B standard uncertainty and two rows flagged as recovering. The timestamps are explicit UTC with a Z suffix so a reader has no excuse to guess a timezone.

File: CSV · Measurements · 48 rows
Use case: Scientific dataCSV parsing+2· Conversion set

Three-Molecule SDfile Library: Multi-Record (.sdf)

Three molecules of different sizes in one SDfile, each with its own connection table and four data fields, separated by the $$$$ terminator. It is the fixture for streaming SDfile readers that have to split on the terminator rather than load the whole file.

File: SDF · Chemistry · 3 records
Use case: Scientific dataEditor testing+1· Conversion set

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Thumbnail Track: Sprite Sheet

A 6x2 sprite sheet of 160x90 scrub-preview thumbnails in a single JPEG. Players fetch one image rather than 12 separate requests, then crop each tile with a media fragment, which is why the WebVTT index in this group is the load-bearing half of the pair. Useless on its own; that is the point of shipping them together.

File: JPG · Thumbnails Track
Use case: Streaming manifestsVideo QA· Conversion set

Thumbnail Track: WebVTT Sprite Index

The WebVTT half of a scrub-preview pair: each cue covers a slice of the timeline and its payload is a media-fragment URL naming a rectangle of the sprite sheet. This is how seek-bar previews are delivered in practice, and the #xywh fragment syntax is the part players implement inconsistently: some resolve it relative to the VTT, others to the page, and some ignore the fragment entirely and show the whole sheet.

File: VTT · Thumbnails Track · 12 cues
Use case: Streaming manifestsSubtitle parsing+1· Conversion set

TIFF with EXIF, XMP and IPTC Metadata

A losslessly compressed TIFF carrying known camera/software tags plus XMP and IPTC payloads, paired with an exactly decoded stripped image.

File: TIFF · Color And Metadata
Use case: Metadata testingConversion testing· Paired fixture

TIFF with Metadata Stripped

The same losslessly compressed TIFF pixels with EXIF-style, XMP and IPTC metadata absent, providing a ground-truth scrubber control.

File: TIFF · Color And Metadata
Use case: Metadata testingConversion testing· Paired fixture

Time Off Request (HTML)

A leave request where the second date must not precede the first and the working-day count is computed in the browser. The cross-field date rule is the constraint HTML cannot express, which makes it a useful validator fixture.

File: HTML · Employment · 6 fields
Use case: Form testingForm parsing+3

Time-series: Business Hours

Hourly order counts weekdays only (09–16 UTC) across three SAMPLE days.

File: CSV · Timeseries · 24 rows
Use case: Time-series dataData import+1

Time-series: DST Fall Back Duplicate Hour (CSV)

Load readings with a repeated 01:00 local hour on fall-back DST. Tests ambiguous timestamp handling.

File: CSV · Timeseries · 5 rows
Use case: Time-series dataData import+1

Time-series: DST Spring Forward Gap (CSV)

Hourly load data skipping the 03:00 hour on DST spring-forward day. Tests timezone/DST gap handling.

File: CSV · Timeseries · 4 rows
Use case: Time-series dataData import+1

Time-series: Duplicate Timestamp Keys (CSV)

Two rows share the same timestamp key. Tests deduplication and last-write-wins policies.

File: CSV · Timeseries · 3 rows
Use case: Time-series dataData import+2· Conversion set