axios/test/unit/defaults/transformResponse.js

import defaults from '../../../lib/defaults/index.js';
import transformData from '../../../lib/core/transformData.js';
import assert from 'assert';

describe('transformResponse', function () {
  describe('200 request', function () {
    it('parses json', function () {
      const data = '{"message": "hello, world"}';
      const result = transformData.call(
        {
          data,
          response: {
            headers: { 'content-type': 'application/json' },
            status: 200,
          },
        },
        defaults.transformResponse
      );
      assert.strictEqual(result.message, 'hello, world');
    });
    it('ignores XML', function () {
      const data = '<message>hello, world</message>';
      const result = transformData.call(
        {
          data,
          response: {
            headers: { 'content-type': 'text/xml' },
            status: 200,
          },
        },
        defaults.transformResponse
      );
      assert.strictEqual(result, data);
    });
  });
  describe('204 request', function () {
    it('does not parse the empty string', function () {
      const data = '';
      const result = transformData.call(
        {
          data,
          response: {
            headers: { 'content-type': undefined },
            status: 204,
          },
        },
        defaults.transformResponse
      );
      assert.strictEqual(result, '');
    });
    it('does not parse undefined', function () {
      const data = undefined;
      const result = transformData.call(
        {
          data,
          response: {
            headers: { 'content-type': undefined },
            status: 200,
          },
        },
        defaults.transformResponse
      );
      assert.strictEqual(result, data);
    });
  });
});