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// NOTE: Make sure to initialize ajv when using this helper
const getAjvErrorMessage = ({ errors }) => {
return (errors || []).map((error) => {
return `Error with item ${error.instancePath}: ${error.message}`;
});
};
export function toValidateJsonSchema(testData, validator) {
if (!(validator instanceof Function && validator.schema)) {
return {
validator,
message: () =>
'Validator must be a validating function with property "schema", created with `ajv.compile`. See https://ajv.js.org/api.html#ajv-compile-schema-object-data-any-boolean-promise-any.',
pass: false,
};
}
const isValid = validator(testData);
return {
actual: testData,
message: () => {
if (isValid) {
// We can match, but still fail because we're in a `expect...not.` context
return 'Expected the given data not to pass the schema validation, but found that it was considered valid.';
}
const errorMessages = getAjvErrorMessage(validator).join('\n');
return `Expected the given data to pass the schema validation, but found that it was considered invalid. Errors:\n${errorMessages}`;
},
pass: isValid,
};
}
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