cadence-web/client/helpers/get-string-elipsis.spec.js

Cadence Web UI

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import getStringElipsis from './get-string-elipsis';
import { MAXIMUM_JSON_CHARACTER_LIMIT, MAXIMUM_JSON_MESSAGE } from '~constants';

describe('getStringElipsis', () => {
  describe('when passed a string that has a length less than MAXIMUM_JSON_CHARACTER_LIMIT', () => {
    it('should return the original string', () => {
      const input = 'a-short-string';
      const output = getStringElipsis(input);

      expect(output).toEqual('a-short-string');
    });
  });
  describe('when passed the empty string', () => {
    it('should return the empty string', () => {
      const input = '';
      const output = getStringElipsis(input);

      expect(output).toEqual('');
    });
  });
  describe('when passed a string that has a length equal to MAXIMUM_JSON_CHARACTER_LIMIT', () => {
    it('should return a substring of the original string up until the limit and display a message.', () => {
      const input = ''.padEnd(MAXIMUM_JSON_CHARACTER_LIMIT, '_');
      const output = getStringElipsis(input);

      expect(output).toEqual(input + MAXIMUM_JSON_MESSAGE);
    });
  });
});