Novus Examples, Real, documented example files for testing

Diff Regression B: 1Px Crop (288px)

Changed twin B for visual-diff regression (pixel: 1px-crop). Expect a non-zero pixel / perceptual diff vs A.

File: PNG · Diff Regression · 288 × 288 px
Use case: Visual diff / regression· Paired fixture

Diff Regression B: 1Px Shift (288px)

Changed twin B for visual-diff regression (pixel: 1px-shift). Expect a non-zero pixel / perceptual diff vs A.

File: PNG · Diff Regression · 288 × 288 px
Use case: Visual diff / regression· Paired fixture

Diff Regression B: Button Add (288px)

Changed twin B for visual-diff regression (button: button-add). Expect a non-zero pixel / perceptual diff vs A.

File: PNG · Diff Regression · 288 × 288 px
Use case: Visual diff / regression· Paired fixture

Diff Regression B: Button Label (288px)

Changed twin B for visual-diff regression (button: button-label). Expect a non-zero pixel / perceptual diff vs A.

File: PNG · Diff Regression · 288 × 288 px
Use case: Visual diff / regression· Paired fixture

Diff Regression B: Colour Tint (288px)

Changed twin B for visual-diff regression (colour: colour-tint). Expect a non-zero pixel / perceptual diff vs A.

File: PNG · Diff Regression · 288 × 288 px
Use case: Visual diff / regression· Paired fixture

Diff Regression B: Corner Badge (288px)

Changed twin B for visual-diff regression (button: corner-badge). Expect a non-zero pixel / perceptual diff vs A.

File: PNG · Diff Regression · 288 × 288 px
Use case: Visual diff / regression· Paired fixture

Diff Regression B: Dot Noise (288px)

Changed twin B for visual-diff regression (pixel: dot-noise). Expect a non-zero pixel / perceptual diff vs A.

File: PNG · Diff Regression · 288 × 288 px
Use case: Visual diff / regression· Paired fixture

Diff Regression B: Hue Shift (288px)

Changed twin B for visual-diff regression (colour: hue-shift). Expect a non-zero pixel / perceptual diff vs A.

File: PNG · Diff Regression · 288 × 288 px
Use case: Visual diff / regression· Paired fixture

Digital Silence (2s WAV)

Two seconds of true digital silence (all-zero samples): a fixture for testing silence detection, auto-trim thresholds, and noise-floor handling.

File: WAV · Signals · 2 s
Use case: Audio analysisAuto-trim testing

Direct Deposit AcroForm (SAMPLE)

Fillable direct deposit PDF.

File: PDF · Employment · 3 fields
Use case: Form testingPDF form filling+2

Direct Deposit Authorization (HTML)

Payroll direct deposit SAMPLE paired with employment forms.

File: HTML · Employment · 3 fields
Use case: Form testingForm parsing+1

Directed Acyclic Pipeline - GEXF 1.3

A six-stage software pipeline DAG for testing dependency import, cycle checks and reproducible topological sorting. This GEXF 1.3 member carries the same node IDs, edge IDs, directions and weights as its two format twins.

File: GEXF · Graph
Use case: Graph dataConversion testing+1· Conversion set

Directed Acyclic Pipeline - GraphML

A six-stage software pipeline DAG for testing dependency import, cycle checks and reproducible topological sorting. This GraphML member carries the same node IDs, edge IDs, directions and weights as its two format twins.

File: GRAPHML · Graph
Use case: Graph dataConversion testing+1· Conversion set

Directed Acyclic Pipeline - JSON edge list

A six-stage software pipeline DAG for testing dependency import, cycle checks and reproducible topological sorting. This JSON edge list member carries the same node IDs, edge IDs, directions and weights as its two format twins.

File: JSON · Graph
Use case: Graph dataConversion testing+1· Conversion set

Directed Dependency Cycle - GEXF 1.3

A four-service directed cycle whose only valid topological result is failure, for dependency-analysis regression tests. This GEXF 1.3 member carries the same node IDs, edge IDs, directions and weights as its two format twins.

File: GEXF · Graph
Use case: Graph dataConversion testing+1· Conversion set

Directed Dependency Cycle - GraphML

A four-service directed cycle whose only valid topological result is failure, for dependency-analysis regression tests. This GraphML member carries the same node IDs, edge IDs, directions and weights as its two format twins.

File: GRAPHML · Graph
Use case: Graph dataConversion testing+1· Conversion set

Directed Dependency Cycle - JSON edge list

A four-service directed cycle whose only valid topological result is failure, for dependency-analysis regression tests. This JSON edge list member carries the same node IDs, edge IDs, directions and weights as its two format twins.

File: JSON · Graph
Use case: Graph dataConversion testing+1· Conversion set

Disconnected Directed Graph - GEXF 1.3

A directed graph with two linked islands and one isolated node, designed for weak-component and isolated-node tests. This GEXF 1.3 member carries the same node IDs, edge IDs, directions and weights as its two format twins.

File: GEXF · Graph
Use case: Graph dataConversion testing+1· Conversion set

Disconnected Directed Graph - GraphML

A directed graph with two linked islands and one isolated node, designed for weak-component and isolated-node tests. This GraphML member carries the same node IDs, edge IDs, directions and weights as its two format twins.

File: GRAPHML · Graph
Use case: Graph dataConversion testing+1· Conversion set

Disconnected Directed Graph - JSON edge list

A directed graph with two linked islands and one isolated node, designed for weak-component and isolated-node tests. This JSON edge list member carries the same node IDs, edge IDs, directions and weights as its two format twins.

File: JSON · Graph
Use case: Graph dataConversion testing+1· Conversion set

DKIM / SPF Annotated Email (EML)

An email annotated with DKIM-Signature, Received-SPF, and Authentication-Results headers (all reporting pass), for testing email-authentication header parsing. The DKIM signature value is a sample placeholder, not real cryptography.

File: EML · Authentication
Use case: Email parsing

dnt-policy.txt (Do Not Track compliance statement)

A sample machine-discoverable Do Not Track policy of the kind served at /.well-known/dnt-policy.txt, stating retention windows, exceptions and a contact for a fictional site. For testing crawlers and privacy scanners that look for the document and read its version header.

File: TXT · Well Known
Use case: Web assetsEditor testing+1· Conversion set

DOC: Legacy Word 97

The formatted Word document saved as legacy binary .doc (Word 97-2003, OLE compound file) via LibreOffice. For testing legacy-Office parsers and DOC→DOCX conversion.

File: DOC · Word
Use case: Conversion testing· Conversion set

Docker Compose Anchors and x- Extension Fields

Compose with three x- extension fields carrying YAML anchors that are merged into services. The trap is ordering: a tool that strips x- keys before parsing the YAML destroys the anchors and the file stops resolving.

File: YAML · Docker
Use case: Config parsingEncoding detection+1

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