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ea2d76de51
* Document a way of handling an error that might be null * Make typecheck strict * Test some edge cases Co-authored-by: Jakob Ackermann <jakob.ackermann@overleaf.com>
61 lines
1.6 KiB
JavaScript
61 lines
1.6 KiB
JavaScript
const { expect } = require('chai')
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const OError = require('../..')
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/**
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* @param {Error} e
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* @param {any} expected
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*/
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exports.expectError = function OErrorExpectError(e, expected) {
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expect(
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e.name,
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"error should set the name property to the error's name"
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).to.equal(expected.name)
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expect(
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e instanceof expected.klass,
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'error should be an instance of the error type'
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).to.be.true
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expect(
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e instanceof Error,
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'error should be an instance of the built-in Error type'
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).to.be.true
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expect(
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require('util').types.isNativeError(e),
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'error should be recognised by util.types.isNativeError'
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).to.be.true
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expect(
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e.toString(),
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'toString should return the default error message formatting'
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).to.equal(expected.message)
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expect(e.stack, 'error should have a stack trace').to.not.be.empty
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expect(
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/** @type {string} */ (e.stack).split('\n')[0],
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'stack should start with the default error message formatting'
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).to.match(new RegExp(`^${expected.name}:`))
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expect(
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/** @type {string} */ (e.stack).split('\n')[1],
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'first stack frame should be the function where the error was thrown'
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).to.match(expected.firstFrameRx)
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}
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/**
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* @param {Error} error
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* @param {String[]} expected
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*/
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exports.expectFullStackWithoutStackFramesToEqual = function (error, expected) {
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const fullStack = OError.getFullStack(error)
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const fullStackWithoutFrames = fullStack
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.split('\n')
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.filter((line) => !/^\s+at\s/.test(line))
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expect(
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fullStackWithoutFrames,
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'full stack without frames should equal'
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).to.deep.equal(expected)
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}
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