/
errors.test.ts
69 lines (57 loc) · 2.28 KB
/
errors.test.ts
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import { PersistError, RehydrateError } from '../errors';
describe('errors.ts', () => {
describe('PersistError', () => {
it('extends Error', () => {
const error = new Error('ERROR 1-0');
const instance = new PersistError(error);
expect(instance).toBeInstanceOf(Error);
expect(instance).toBeInstanceOf(PersistError);
expect(instance.originalError).toEqual(error);
expect(instance.message).toEqual(`${error.name}: ${error.message}`);
});
it('copies the stack trace of wrapped Error', () => {
const error = new Error('ERROR 1-1');
const errorStackLines = error.stack!.split('\n');
const errorStackOnly = errorStackLines
.slice(1, errorStackLines.length)
.join('\n');
const instance = new PersistError(error);
const instanceStackLine1 = instance.stack!.split('\n')[1];
expect(instance.stack).toEqual(
`PersistError: Error: ${error.message}\n`
+ `${instanceStackLine1}\n`
+ `${errorStackOnly}`
);
});
it('does not break when an invalid error is wrapped', () => {
expect(new PersistError({ invalid: 'error1' })).toBeInstanceOf(PersistError);
});
});
describe('RehydrateError', () => {
it('extends Error', () => {
const error = new Error('ERROR 2-0');
const instance = new RehydrateError(error);
expect(instance).toBeInstanceOf(Error);
expect(instance).toBeInstanceOf(RehydrateError);
expect(instance.originalError).toEqual(error);
expect(instance.message).toEqual(`${error.name}: ${error.message}`);
});
it('copies the stack trace of wrapped Error', () => {
const error = new Error('ERROR 1-1');
const errorStackLines = error.stack!.split('\n');
const errorStackOnly = errorStackLines
.slice(1, errorStackLines.length)
.join('\n');
const instance = new RehydrateError(error);
const instanceStackLine1 = instance.stack!.split('\n')[1];
expect(instance.stack).toEqual(
`RehydrateError: Error: ${error.message}\n`
+ `${instanceStackLine1}\n`
+ `${errorStackOnly}`
);
});
it('does not break when an invalid error is wrapped', () => {
expect(new PersistError({ invalid: 'error2' })).toBeInstanceOf(PersistError);
});
});
});