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    jest-rdf
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    1.7.0 • Public • Published

    jest-rdf

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    Jest test utilities for RDFJS, including several new matchers.

    Installation

    $ yarn install --save-dev jest-rdf

    Configuration

    In order to use matchers in your tests, you'll have to make sure that they are imported. This can be done by adding the following entry to your Jest configuration:

    "jest": {
      "setupFilesAfterEnv": [ "jest-rdf" ]
    }

    If you are already using an existing test framework script file, make sure to add jest-rdf as follows to your file:

    ...
    require('jest-rdf');

    Optional: Typescript typings configuration

    If you are using TypeScript, possibly in combination with ts-jest, you will need to import the typings of this package to make the TS compiler recognise the new matchers.

    For this, include the following import at the top of each applicable test file:

    import "jest-rdf";
    

    API

    toBeRdfIsomorphic

    Check if two RDF graphs are isomorphic. An RDF graph is represented as an iterable of quads where the order of quads is not important.

    const g1 = [
      quad(blankNode('b1'), namedNode('p1'), namedNode('o1'), namedNode('g1')),
      quad(blankNode('b1'), namedNode('p2'), namedNode('o2'), namedNode('g2')),
    ];
    const g2 = [
      quad(blankNode('b2'), namedNode('p2'), namedNode('o2'), namedNode('g2')),
      quad(blankNode('b2'), namedNode('p1'), namedNode('o1'), namedNode('g1')),
    ];
    expect(g1).toBeRdfIsomorphic(g2);
    expect(dataset(g1)).toBeRdfIsomorphic(dataset(g2));

    Also supports nested quads:

    const g1 = [
      quad(quad(blankNode('b1'), namedNode('p1'), namedNode('o1'), namedNode('g1')), namedNode('p1'), namedNode('o1'), namedNode('g1')),
      quad(blankNode('b1'), namedNode('p2'), namedNode('o2'), namedNode('g2')),
    ];
    const g2 = [
      quad(quad(blankNode('b2'), namedNode('p2'), namedNode('o2'), namedNode('g2')), namedNode('p2'), namedNode('o2'), namedNode('g2')),
      quad(blankNode('b2'), namedNode('p1'), namedNode('o1'), namedNode('g1')),
    ];
    expect(g1).toBeRdfIsomorphic(g2);
    expect(dataset(g1)).toBeRdfIsomorphic(dataset(g2));

    toEqualRdfQuad

    Check if two RDF Quads are equal.

    Terms are compared under the semantics of toEqualRdfTerm.

    const q1 = quad(namedNode('s1'), namedNode('p1'), namedNode('o1'), namedNode('g1'));
    const q2 = quad(namedNode('s2'), namedNode('p2'), namedNode('o2'), namedNode('g2'));
    expect(q1).toEqualRdfQuad(q2);

    toEqualRdfQuadArray

    Check if two RDF Quad arrays are equal.

    Quads are compared under the semantics of toEqualRdfQuad.

    const q1 = quad(namedNode('s1'), namedNode('p1'), namedNode('o1'), namedNode('g1'));
    const q2 = quad(namedNode('s2'), namedNode('p2'), namedNode('o2'), namedNode('g2'));
    expect([q1]).toEqualRdfQuadArray([q2]);

    toEqualRdfTerm

    Check if two RDF Terms are equal.

    Blank nodes are always considered equal.

    expect(namedNode('t1')).toEqualRdfTerm(namedNode('t2'));

    toEqualRdfTermArray

    Check if two RDF Term arrays are equal.

    Terms are compared under the semantics of toEqualRdfTerm.

    expect([namedNode('t1'), namedNode('t2')]).toEqualRdfTermArray([namedNode('t2'), namedNode('t3')]);

    toBeRdfDatasetContaining

    Check if a dataset contains all of the given quads.

    const q1 = quad(namedNode('s1'), namedNode('p1'), namedNode('o1'), namedNode('g1'));
    const q2 = quad(namedNode('s2'), namedNode('p2'), namedNode('o2'), namedNode('g2'));
    const d = dataset([q1, q2]);
    expect(d).toBeRdfDatasetContaining(q1);
    expect(d).toBeRdfDatasetContaining(q1, q2);

    toBeRdfDatasetMatching

    Check if a dataset contains exactly the given amount of matching quads (default 1).

    const q1 = quad(namedNode('s'), namedNode('p1'), namedNode('o1'), namedNode('g1'));
    const q2 = quad(namedNode('s'), namedNode('p2'), namedNode('o2'), namedNode('g2'));
    const d = dataset([q1, q2]);
    expect(d).toBeRdfDatasetMatching({ subject: namedNode('s'), predicate: namedNode('p1') });
    expect(d).toBeRdfDatasetMatching({ subject: namedNode('s') }, 2);

    toBeRdfDatasetOfSize

    Check if a dataset contains exactly the given amount of quads.

    const q = quad(namedNode('s1'), namedNode('p1'), namedNode('o1'), namedNode('g1'));
    const d = dataset([q]);
    expect(d).toBeRdfDatasetOfSize(1);

    License

    This software is written by Ruben Taelman.

    This code is released under the MIT license.

    Install

    npm i jest-rdf

    DownloadsWeekly Downloads

    537

    Version

    1.7.0

    License

    MIT

    Unpacked Size

    19.7 kB

    Total Files

    23

    Last publish

    Collaborators

    • rubensworks