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var fs = require('fs');
var path = require('path');
var assert = require('assert');
var summary = require('../').parse.summary;
var navigation = require('../').parse.navigation;
var CONTENT = fs.readFileSync(path.join(__dirname, './fixtures/SUMMARY.md'), 'utf8');
var LEXED = summary(CONTENT);
describe('Summary navigation', function() {
it('should provide next & prev entries for a file', function() {
var nav = navigation(LEXED, [
'README.md',
'chapter-1/README.md',
'chapter-1/ARTICLE1.md',
'chapter-1/ARTICLE2.md',
'chapter-2/README.md',
'chapter-1/ARTICLE-1-2-1.md',
'chapter-1/ARTICLE-1-2-2.md'
]);
// Make sure it found the files we gave it
assert(nav['README.md']);
assert(nav['chapter-1/README.md']);
assert(nav['chapter-1/ARTICLE1.md']);
assert(nav['chapter-1/ARTICLE2.md']);
assert(nav['chapter-2/README.md']);
assert(nav['chapter-1/ARTICLE-1-2-1.md']);
assert(nav['chapter-1/ARTICLE-1-2-2.md']);
assert.equal(nav['README.md'].prev, null);
assert.equal(nav['README.md'].next.path, 'chapter-1/README.md');
assert.equal(nav['chapter-1/README.md'].prev.path, 'README.md');
assert.equal(nav['chapter-1/README.md'].next.path, 'chapter-1/ARTICLE1.md');
assert.equal(nav['chapter-1/ARTICLE1.md'].prev.path, 'chapter-1/README.md');
assert.equal(nav['chapter-1/ARTICLE1.md'].next.path, 'chapter-1/ARTICLE2.md');
assert.equal(nav['chapter-1/ARTICLE2.md'].prev.path, 'chapter-1/ARTICLE1.md');
assert.equal(nav['chapter-1/ARTICLE2.md'].next.path, 'chapter-1/ARTICLE-1-2-1.md');
assert.equal(nav['chapter-1/ARTICLE-1-2-1.md'].prev.path, 'chapter-1/ARTICLE2.md');
assert.equal(nav['chapter-1/ARTICLE-1-2-1.md'].next.path, 'chapter-1/ARTICLE-1-2-2.md');
assert.equal(nav['chapter-1/ARTICLE-1-2-2.md'].prev.path, 'chapter-1/ARTICLE-1-2-1.md');
assert.equal(nav['chapter-1/ARTICLE-1-2-2.md'].next.path, 'chapter-2/README.md');
assert.equal(nav['chapter-2/README.md'].prev.path, 'chapter-1/ARTICLE-1-2-2.md');
assert.equal(nav['chapter-2/README.md'].next.path, 'chapter-3/README.md');
});
it('should give full tree, when not limited', function() {
var nav = navigation(LEXED);
assert(nav['README.md']);
assert(nav['chapter-1/README.md']);
assert(nav['chapter-1/ARTICLE1.md']);
assert(nav['chapter-1/ARTICLE2.md']);
assert(nav['chapter-2/README.md']);
assert(nav['chapter-3/README.md']);
});
it('should detect levels correctly', function() {
var nav = navigation(LEXED);
assert.equal(nav['README.md'].level, '0');
assert.equal(nav['chapter-1/README.md'].level, '1');
assert.equal(nav['chapter-1/ARTICLE1.md'].level, '1.1');
assert.equal(nav['chapter-1/ARTICLE2.md'].level, '1.2');
assert.equal(nav['chapter-2/README.md'].level, '2');
assert.equal(nav['chapter-3/README.md'].level, '3');
});
it('should not accept null paths', function() {
var nav = navigation(LEXED);
assert(!nav[null]);
});
});
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