async_dynamic_mocha_tests.js

function generateSchemaTests(title, majorVersion, schemaInfos) {
    it(`All ${title} schemas should have title ${title} `, function() {
        schemaInfos.forEach((info) => {
            assert.equal(info.schema.title, title);
        });
    });
    it(`All ${title} major version ${majorVersion} schemas should be ${majorVersion}.x.y`, function() {
        schemaInfos.forEach((info) => {
            assert.equal(semver.coerce(_.get(info.schema, '$id')).major, majorVersion);
        });
    });
    // ... other tests and assertions here
    // E.g. it('backwards compatible, etc.')
}

describe('Test Schema Conventions', function() {
    let fixture;

    before('Copying fixtures to temp directory and declaring tests', async function() {
        // Copy the fixtures/ dir into a temp directory that is automatically
        // cleaned up after each test.
        fixture = testFixture();
        await fixture.copy();

        const schemaBasePath = fixture.resolve('schemas/');
        const schemasByTitleAndMajor = await findSchemasByTitleAndMajor(schemaBasePath);

        describe('Each schema should conform', function() {
            _.keys(schemasByTitleAndMajor).forEach((title) => {
                _.keys(schemasByTitleAndMajor[title]).forEach((majorVersion) => {
                    generateSchemaTests(
                        title,
                        majorVersion,
                        schemasByTitleAndMajor[title][majorVersion]
                    );
                });
            });
        });
    });

    it.skip('This is a required placeholder to allow before() to work', function () { });
});

output

  Test Schema Conventions
    - This is a required placeholder to allow before() to work

  Each schema should conform
    ✓ All basic schemas should have title basic
    ✓ All basic major version 1 schemas should be 1.x.y
    ✓ All common schemas should have title common
    ✓ All common major version 1 schemas should be 1.x.y