mermaid/src/utils.spec.js

/* eslint-env jasmine */
import utils from './utils';

describe('when detecting chart type ', function() {
  it('should handle a graph defintion', function() {
    const str = 'graph TB\nbfs1:queue';
    const type = utils.detectType(str);
    expect(type).toBe('flowchart');
  });
  it('should handle a graph defintion with leading spaces', function() {
    const str = '    graph TB\nbfs1:queue';
    const type = utils.detectType(str);
    expect(type).toBe('flowchart');
  });

  it('should handle a graph defintion with leading spaces and newline', function() {
    const str = '  \n  graph TB\nbfs1:queue';
    const type = utils.detectType(str);
    expect(type).toBe('flowchart');
  });
  it('should handle a graph defintion for gitGraph', function() {
    const str = '  \n  gitGraph TB:\nbfs1:queue';
    const type = utils.detectType(str);
    expect(type).toBe('git');
  });
});

describe('when finding substring in array ', function() {
  it('should return the array index that contains the substring', function() {
    const arr = ['stroke:val1', 'fill:val2'];
    const result = utils.isSubstringInArray('fill', arr);
    expect(result).toEqual(1);
  });
  it('should return -1 if the substring is not found in the array', function() {
    const arr = ['stroke:val1', 'stroke-width:val2'];
    const result = utils.isSubstringInArray('fill', arr);
    expect(result).toEqual(-1);
  });
});