mermaid
Version:
Markdownish syntax for generating flowcharts, sequence diagrams, class diagrams and gantt charts.
254 lines (214 loc) • 8.52 kB
JavaScript
var parser = require('./parser/gitGraph').parser;
var ast = require('./gitGraphAst.js');
describe('when parsing a gitGraph',function() {
'use strict';
beforeEach(function () {
console.log('ast',ast);
console.log('parser',parser);
parser.yy = ast;
parser.yy.clear();
});
it('should handle a gitGraph defintion', function () {
var str = 'gitGraph:\n' +
'commit\n';
parser.parse(str);
var commits = parser.yy.getCommits();
//console.log(commits);
expect(Object.keys(commits).length).toBe(1);
expect(parser.yy.getCurrentBranch()).toBe('master');
expect(parser.yy.getDirection()).toBe('LR');
expect(Object.keys(parser.yy.getBranches()).length).toBe(1);
});
it('should handle a gitGraph defintion with empty options', function () {
var str = 'gitGraph:\n' +
'options\n' +
'end\n' +
'commit\n';
parser.parse(str);
var commits = parser.yy.getCommits();
//console.log(commits);
expect(parser.yy.getOptions()).toEqual({});
expect(Object.keys(commits).length).toBe(1);
expect(parser.yy.getCurrentBranch()).toBe('master');
expect(parser.yy.getDirection()).toBe('LR');
expect(Object.keys(parser.yy.getBranches()).length).toBe(1);
});
it('should handle a gitGraph defintion with valid options', function () {
var str = 'gitGraph:\n' +
'options\n' +
'{"key": "value"}\n' +
'end\n' +
'commit\n';
parser.parse(str);
var commits = parser.yy.getCommits();
//console.log(commits);
//console.log('options object', parser.yy.getOptions());
expect(parser.yy.getOptions()['key']).toBe('value');
expect(Object.keys(commits).length).toBe(1);
expect(parser.yy.getCurrentBranch()).toBe('master');
expect(parser.yy.getDirection()).toBe('LR');
expect(Object.keys(parser.yy.getBranches()).length).toBe(1);
});
it('should not fail on a gitGraph with malformed json', function () {
var str = 'gitGraph:\n' +
'options\n' +
'{"key": "value"\n' +
'end\n' +
'commit\n';
parser.parse(str);
var commits = parser.yy.getCommits();
//console.log(commits);
expect(Object.keys(commits).length).toBe(1);
expect(parser.yy.getCurrentBranch()).toBe('master');
expect(parser.yy.getDirection()).toBe('LR');
expect(Object.keys(parser.yy.getBranches()).length).toBe(1);
});
it('should handle set direction', function () {
var str = 'gitGraph BT:\n' +
'commit\n';
parser.parse(str);
var commits = parser.yy.getCommits();
//console.log(commits);
expect(Object.keys(commits).length).toBe(1);
expect(parser.yy.getCurrentBranch()).toBe('master');
expect(parser.yy.getDirection()).toBe('BT');
expect(Object.keys(parser.yy.getBranches()).length).toBe(1);
});
it('should checkout a branch', function () {
var str = 'gitGraph:\n' +
'branch new\n' +
'checkout new\n'
parser.parse(str);
var commits = parser.yy.getCommits();
expect(Object.keys(commits).length).toBe(0);
expect(parser.yy.getCurrentBranch()).toBe('new');
});
it('should add commits to checked out branch', function () {
var str = 'gitGraph:\n' +
'branch new\n' +
'checkout new\n' +
'commit\n'+
'commit\n'
parser.parse(str);
var commits = parser.yy.getCommits();
expect(Object.keys(commits).length).toBe(2);
expect(parser.yy.getCurrentBranch()).toBe('new');
var branchCommit = parser.yy.getBranches()['new'];
expect(branchCommit).not.toBeNull();
expect(commits[branchCommit].parent).not.toBeNull();
});
it('should handle commit with args', function () {
var str = 'gitGraph:\n' +
'commit "a commit"\n';
parser.parse(str);
var commits = parser.yy.getCommits();
//console.log(commits);
expect(Object.keys(commits).length).toBe(1);
var key = Object.keys(commits)[0];
expect(commits[key].message).toBe('a commit');
expect(parser.yy.getCurrentBranch()).toBe('master');
});
it('it should reset a branch', function () {
var str = 'gitGraph:\n' +
'commit\n' +
'commit\n' +
'branch newbranch\n' +
'checkout newbranch\n' +
'commit\n' +
'reset master\n';
parser.parse(str);
var commits = parser.yy.getCommits();
expect(Object.keys(commits).length).toBe(3);
expect(parser.yy.getCurrentBranch()).toBe('newbranch');
expect(parser.yy.getBranches()['newbranch']).toEqual(parser.yy.getBranches()['master']);
expect(parser.yy.getHead().id).toEqual(parser.yy.getBranches()['newbranch']);
});
it('reset can take an argument', function () {
var str = 'gitGraph:\n' +
'commit\n' +
'commit\n' +
'branch newbranch\n' +
'checkout newbranch\n' +
'commit\n' +
'reset master^\n';
parser.parse(str);
var commits = parser.yy.getCommits();
expect(Object.keys(commits).length).toBe(3);
expect(parser.yy.getCurrentBranch()).toBe('newbranch');
var master = commits[parser.yy.getBranches()['master']];
expect(parser.yy.getHead().id).toEqual(master.parent);
})
it('it should handle fast forwardable merges', function () {
var str = 'gitGraph:\n' +
'commit\n' +
'branch newbranch\n' +
'checkout newbranch\n' +
'commit\n' +
'commit\n' +
'checkout master\n'+
'merge newbranch\n';
parser.parse(str);
var commits = parser.yy.getCommits();
//console.log(commits);
expect(Object.keys(commits).length).toBe(3);
expect(parser.yy.getCurrentBranch()).toBe('master');
expect(parser.yy.getBranches()['newbranch']).toEqual(parser.yy.getBranches()['master']);
expect(parser.yy.getHead().id).toEqual(parser.yy.getBranches()['newbranch']);
});
it('it should handle cases when merge is a noop', function () {
var str = 'gitGraph:\n' +
'commit\n' +
'branch newbranch\n' +
'checkout newbranch\n' +
'commit\n' +
'commit\n' +
'merge master\n';
parser.parse(str);
var commits = parser.yy.getCommits();
//console.log(commits);
expect(Object.keys(commits).length).toBe(3);
expect(parser.yy.getCurrentBranch()).toBe('newbranch');
expect(parser.yy.getBranches()['newbranch']).not.toEqual(parser.yy.getBranches()['master']);
expect(parser.yy.getHead().id).toEqual(parser.yy.getBranches()['newbranch']);
});
it('it should handle merge with 2 parents', function () {
var str = 'gitGraph:\n' +
'commit\n' +
'branch newbranch\n' +
'checkout newbranch\n' +
'commit\n' +
'commit\n' +
'checkout master\n' +
'commit\n' +
'merge newbranch\n';
parser.parse(str);
var commits = parser.yy.getCommits();
//console.log(commits);
expect(Object.keys(commits).length).toBe(5);
expect(parser.yy.getCurrentBranch()).toBe('master');
expect(parser.yy.getBranches()['newbranch']).not.toEqual(parser.yy.getBranches()['master']);
expect(parser.yy.getHead().id).toEqual(parser.yy.getBranches()['master']);
});
it('it should handle ff merge when history walk has two parents (merge commit)', function () {
var str = 'gitGraph:\n' +
'commit\n' +
'branch newbranch\n' +
'checkout newbranch\n' +
'commit\n' +
'commit\n' +
'checkout master\n' +
'commit\n' +
'merge newbranch\n' +
'commit\n' +
'checkout newbranch\n' +
'merge master\n' ;
parser.parse(str);
var commits = parser.yy.getCommits();
//console.log(commits);
expect(Object.keys(commits).length).toBe(6);
expect(parser.yy.getCurrentBranch()).toBe('newbranch');
expect(parser.yy.getBranches()['newbranch']).toEqual(parser.yy.getBranches()['master']);
expect(parser.yy.getHead().id).toEqual(parser.yy.getBranches()['master']);
parser.yy.prettyPrint();
});
});