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import Ajv from 'ajv';
import AjvFormats from 'ajv-formats';
const JSON_SCHEMA = {
type: 'object',
properties: {
fruit: {
type: 'string',
minLength: 3,
},
},
};
const ajv = new Ajv({
strictTypes: false,
strictTuples: false,
allowMatchingProperties: true,
});
AjvFormats(ajv);
const schema = ajv.compile(JSON_SCHEMA);
describe('custom matcher toValidateJsonSchema', () => {
it('throws error if validator is not compiled correctly', () => {
expect(() => {
expect({}).toValidateJsonSchema({});
}).toThrow(
'Validator must be a validating function with property "schema", created with `ajv.compile`. See https://ajv.js.org/api.html#ajv-compile-schema-object-data-any-boolean-promise-any.',
);
});
describe('positive assertions', () => {
it.each`
description | input
${'valid input'} | ${{ fruit: 'apple' }}
`('schema validation passes for $description', ({ input }) => {
expect(input).toValidateJsonSchema(schema);
});
it('throws if not matching', () => {
expect(() => expect(null).toValidateJsonSchema(schema)).toThrow(
`Expected the given data to pass the schema validation, but found that it was considered invalid. Errors:
Error with item : must be object`,
);
});
});
describe('negative assertions', () => {
it.each`
description | input
${'no input'} | ${null}
${'input with invalid type'} | ${'banana'}
${'input with invalid length'} | ${{ fruit: 'aa' }}
${'input with invalid type'} | ${{ fruit: 12345 }}
`('schema validation fails for $description', ({ input }) => {
expect(input).not.toValidateJsonSchema(schema);
});
it('throws if matching', () => {
expect(() => expect({ fruit: 'apple' }).not.toValidateJsonSchema(schema)).toThrow(
'Expected the given data not to pass the schema validation, but found that it was considered valid.',
);
});
});
});
|
