axios-axios/tests/unit/axios.test.js

import { describe, it } from 'vitest';
import assert from 'assert';
import Axios from '../../lib/core/Axios.js';

describe('Axios', () => {
  describe('handle un-writable error stack', () => {
    const testUnwritableErrorStack = async (stackAttributes) => {
      const axios = new Axios({});
      // Mock axios._request to return an Error with an un-writable stack property.
      axios._request = () => {
        const mockError = new Error('test-error');
        Object.defineProperty(mockError, 'stack', stackAttributes);
        throw mockError;
      };

      try {
        await axios.request('test-url', {});
      } catch (e) {
        assert.strictEqual(e.message, 'test-error');
      }
    };

    it('should support errors with a defined but un-writable stack', async () => {
      await testUnwritableErrorStack({ value: {}, writable: false });
    });

    it('should support errors with an undefined and un-writable stack', async () => {
      await testUnwritableErrorStack({ value: undefined, writable: false });
    });

    it('should support errors with a custom getter/setter for the stack property', async () => {
      await testUnwritableErrorStack({
        get: () => ({}),
        set: () => {
          throw new Error('read-only');
        },
      });
    });

    it('should support errors with a custom getter/setter for the stack property (null case)', async () => {
      await testUnwritableErrorStack({
        get: () => null,
        set: () => {
          throw new Error('read-only');
        },
      });
    });
  });

  it('should not throw if the config argument is omitted', () => {
    const axios = new Axios();

    assert.deepStrictEqual(axios.defaults, {});
  });
});