'use strict';

var assert = require('assert');
var fs = require('fs');
var path = require('path');
var pug = require('../');

var perfTest = fs.readFileSync(__dirname + '/fixtures/perf.pug', 'utf8')

try {
  fs.mkdirSync(__dirname + '/temp');
} catch (ex) {
  if (ex.code !== 'EEXIST') {
    throw ex;
  }
}

describe('pug', function(){

  describe('unit tests with .render()', function(){
    it('should support doctypes', function(){
      assert.equal('<?xml version="1.0" encoding="utf-8" ?>', pug.render('doctype xml'));
      assert.equal('<!DOCTYPE html>', pug.render('doctype html'));
      assert.equal('<!DOCTYPE foo bar baz>', pug.render('doctype foo bar baz'));
      assert.equal('<!DOCTYPE html>', pug.render('doctype html'));
      assert.equal('<!DOCTYPE html>', pug.render('doctype', { doctype:'html' }));
      assert.equal('<!DOCTYPE html>', pug.render('doctype html', { doctype:'xml' }));
      assert.equal('<html></html>', pug.render('html'));
      assert.equal('<!DOCTYPE html><html></html>', pug.render('html', { doctype:'html' }));
      assert.equal('<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML Basic 1.1//EN>', pug.render('doctype html PUBLIC "-//W3C//DTD XHTML Basic 1.1//EN'));
    });

    it('should support Buffers', function(){
      assert.equal('<p>foo</p>', pug.render(new Buffer('p foo')));
    });

    it('should support line endings', function(){
      var src = [
          'p',
          'div',
          'img'
      ];

      var html = [
          '<p></p>',
          '<div></div>',
          '<img/>'
      ].join('');

      assert.equal(html, pug.render(src.join('\n')));
      assert.equal(html, pug.render(src.join('\r')));
      assert.equal(html, pug.render(src.join('\r\n')));

      html = [
          '<p></p>',
          '<div></div>',
          '<img>'
      ].join('');

      assert.equal(html, pug.render(src.join('\n'), { doctype:'html' }));
      assert.equal(html, pug.render(src.join('\r'), { doctype:'html' }));
      assert.equal(html, pug.render(src.join('\r\n'), { doctype:'html' }));
    });

    it('should support single quotes', function(){
      assert.equal("<p>'foo'</p>", pug.render("p 'foo'"));
      assert.equal("<p>'foo'</p>", pug.render("p\n  | 'foo'"));
      assert.equal('<a href="/foo"></a>', pug.render("- var path = 'foo';\na(href='/' + path)"));
    });

    it('should support block-expansion', function(){
      assert.equal("<li><a>foo</a></li><li><a>bar</a></li><li><a>baz</a></li>", pug.render("li: a foo\nli: a bar\nli: a baz"));
      assert.equal("<li class=\"first\"><a>foo</a></li><li><a>bar</a></li><li><a>baz</a></li>", pug.render("li.first: a foo\nli: a bar\nli: a baz"));
      assert.equal('<div class="foo"><div class="bar">baz</div></div>', pug.render(".foo: .bar baz"));
    });

    it('should support tags', function(){
      var str = [
          'p',
          'div',
          'img',
          'br/'
      ].join('\n');

      var html = [
          '<p></p>',
          '<div></div>',
          '<img/>',
          '<br/>'
      ].join('');

      assert.equal(html, pug.render(str), 'Test basic tags');
      assert.equal('<fb:foo-bar></fb:foo-bar>', pug.render('fb:foo-bar'), 'Test hyphens');
      assert.equal('<div class="something"></div>', pug.render('div.something'), 'Test classes');
      assert.equal('<div id="something"></div>', pug.render('div#something'), 'Test ids');
      assert.equal('<div class="something"></div>', pug.render('.something'), 'Test stand-alone classes');
      assert.equal('<div id="something"></div>', pug.render('#something'), 'Test stand-alone ids');
      assert.equal('<div class="bar" id="foo"></div>', pug.render('#foo.bar'));
      assert.equal('<div class="bar" id="foo"></div>', pug.render('.bar#foo'));
      assert.equal('<div class="bar" id="foo"></div>', pug.render('div#foo(class="bar")'));
      assert.equal('<div class="bar" id="foo"></div>', pug.render('div(class="bar")#foo'));
      assert.equal('<div class="foo" id="bar"></div>', pug.render('div(id="bar").foo'));
      assert.equal('<div class="foo bar baz"></div>', pug.render('div.foo.bar.baz'));
      assert.equal('<div class="foo bar baz"></div>', pug.render('div(class="foo").bar.baz'));
      assert.equal('<div class="foo bar baz"></div>', pug.render('div.foo(class="bar").baz'));
      assert.equal('<div class="foo bar baz"></div>', pug.render('div.foo.bar(class="baz")'));
      assert.equal('<div class="a-b2"></div>', pug.render('div.a-b2'));
      assert.equal('<div class="a_b2"></div>', pug.render('div.a_b2'));
      assert.equal('<fb:user></fb:user>', pug.render('fb:user'));
      assert.equal('<fb:user:role></fb:user:role>', pug.render('fb:user:role'));
      assert.equal('<colgroup><col class="test"/></colgroup>', pug.render('colgroup\n  col.test'));
    });

    it('should support nested tags', function(){
      var str = [
          'ul',
          '  li a',
          '  li b',
          '  li',
          '    ul',
          '      li c',
          '      li d',
          '  li e',
      ].join('\n');

      var html = [
          '<ul>',
          '<li>a</li>',
          '<li>b</li>',
          '<li><ul><li>c</li><li>d</li></ul></li>',
          '<li>e</li>',
          '</ul>'
      ].join('');

      assert.equal(html, pug.render(str));

      var str = [
          'a(href="#")',
          '  | foo ',
          '  | bar ',
          '  | baz'
      ].join('\n');

      assert.equal('<a href="#">foo \nbar \nbaz</a>', pug.render(str));

      var str = [
          'ul',
          '  li one',
          '  ul',
          '    | two',
          '    li three'
      ].join('\n');

      var html = [
          '<ul>',
          '<li>one</li>',
          '<ul>two',
          '<li>three</li>',
          '</ul>',
          '</ul>'
      ].join('');

      assert.equal(html, pug.render(str));
    });

    it('should support variable length newlines', function(){
      var str = [
          'ul',
          '  li a',
          '  ',
          '  li b',
          ' ',
          '         ',
          '  li',
          '    ul',
          '      li c',
          '',
          '      li d',
          '  li e',
      ].join('\n');

      var html = [
          '<ul>',
          '<li>a</li>',
          '<li>b</li>',
          '<li><ul><li>c</li><li>d</li></ul></li>',
          '<li>e</li>',
          '</ul>'
      ].join('');

      assert.equal(html, pug.render(str));
    });

    it('should support tab conversion', function(){
      var str = [
          'ul',
          '\tli a',
          '\t',
          '\tli b',
          '\t\t',
          '\t\t\t\t\t\t',
          '\tli',
          '\t\tul',
          '\t\t\tli c',
          '',
          '\t\t\tli d',
          '\tli e',
      ].join('\n');

      var html = [
          '<ul>',
          '<li>a</li>',
          '<li>b</li>',
          '<li><ul><li>c</li><li>d</li></ul></li>',
          '<li>e</li>',
          '</ul>'
      ].join('');

      assert.equal(html, pug.render(str));
    });

    it('should support newlines', function(){
      var str = [
          'ul',
          '  li a',
          '  ',
          '    ',
          '',
          ' ',
          '  li b',
          '  li',
          '    ',
          '        ',
          ' ',
          '    ul',
          '      ',
          '      li c',
          '      li d',
          '  li e',
      ].join('\n');

      var html = [
          '<ul>',
          '<li>a</li>',
          '<li>b</li>',
          '<li><ul><li>c</li><li>d</li></ul></li>',
          '<li>e</li>',
          '</ul>'
      ].join('');

      assert.equal(html, pug.render(str));

      var str = [
          'html',
          ' ',
          '  head',
          '    != "test"',
          '  ',
          '  ',
          '  ',
          '  body'
      ].join('\n');

      var html = [
          '<html>',
          '<head>',
          'test',
          '</head>',
          '<body></body>',
          '</html>'
      ].join('');

      assert.equal(html, pug.render(str));
      assert.equal('<foo></foo>something<bar></bar>', pug.render('foo\n= "something"\nbar'));
      assert.equal('<foo></foo>something<bar></bar>else', pug.render('foo\n= "something"\nbar\n= "else"'));
    });

    it('should support text', function(){
      assert.equal('foo\nbar\nbaz', pug.render('| foo\n| bar\n| baz'));
      assert.equal('foo \nbar \nbaz', pug.render('| foo \n| bar \n| baz'));
      assert.equal('(hey)', pug.render('| (hey)'));
      assert.equal('some random text', pug.render('| some random text'));
      assert.equal('  foo', pug.render('|   foo'));
      assert.equal('  foo  ', pug.render('|   foo  '));
      assert.equal('  foo  \n bar    ', pug.render('|   foo  \n|  bar    '));
    });

    it('should support pipe-less text', function(){
      assert.equal('<pre><code><foo></foo><bar></bar></code></pre>', pug.render('pre\n  code\n    foo\n\n    bar'));
      assert.equal('<p>foo\n\nbar</p>', pug.render('p.\n  foo\n\n  bar'));
      assert.equal('<p>foo\n\n\n\nbar</p>', pug.render('p.\n  foo\n\n\n\n  bar'));
      assert.equal('<p>foo\n  bar\nfoo</p>', pug.render('p.\n  foo\n    bar\n  foo'));
      assert.equal('<script>s.parentNode.insertBefore(g,s)</script>', pug.render('script.\n  s.parentNode.insertBefore(g,s)\n'));
      assert.equal('<script>s.parentNode.insertBefore(g,s)</script>', pug.render('script.\n  s.parentNode.insertBefore(g,s)'));
    });

    it('should support tag text', function(){
      assert.equal('<p>some random text</p>', pug.render('p some random text'));
      assert.equal('<p>click<a>Google</a>.</p>', pug.render('p\n  | click\n  a Google\n  | .'));
      assert.equal('<p>(parens)</p>', pug.render('p (parens)'));
      assert.equal('<p foo="bar">(parens)</p>', pug.render('p(foo="bar") (parens)'));
      assert.equal('<option value="">-- (optional) foo --</option>', pug.render('option(value="") -- (optional) foo --'));
    });

    it('should support tag text block', function(){
      assert.equal('<p>foo \nbar \nbaz</p>', pug.render('p\n  | foo \n  | bar \n  | baz'));
      assert.equal('<label>Password:<input/></label>', pug.render('label\n  | Password:\n  input'));
      assert.equal('<label>Password:<input/></label>', pug.render('label Password:\n  input'));
    });

    it('should support tag text interpolation', function(){
      assert.equal('yo, pug is cool', pug.render('| yo, #{name} is cool\n', { name: 'pug' }));
      assert.equal('<p>yo, pug is cool</p>', pug.render('p yo, #{name} is cool', { name: 'pug' }));
      assert.equal('yo, pug is cool', pug.render('| yo, #{name || "pug"} is cool', { name: null }));
      assert.equal('yo, \'pug\' is cool', pug.render('| yo, #{name || "\'pug\'"} is cool', { name: null }));
      assert.equal('foo &lt;script&gt; bar', pug.render('| foo #{code} bar', { code: '<script>' }));
      assert.equal('foo <script> bar', pug.render('| foo !{code} bar', { code: '<script>' }));
    });

    it('should support flexible indentation', function(){
      assert.equal('<html><body><h1>Wahoo</h1><p>test</p></body></html>', pug.render('html\n  body\n   h1 Wahoo\n   p test'));
    });

    it('should support interpolation values', function(){
      assert.equal('<p>Users: 15</p>', pug.render('p Users: #{15}'));
      assert.equal('<p>Users: </p>', pug.render('p Users: #{null}'));
      assert.equal('<p>Users: </p>', pug.render('p Users: #{undefined}'));
      assert.equal('<p>Users: none</p>', pug.render('p Users: #{undefined || "none"}'));
      assert.equal('<p>Users: 0</p>', pug.render('p Users: #{0}'));
      assert.equal('<p>Users: false</p>', pug.render('p Users: #{false}'));
    });

    it('should support test html 5 mode', function(){
      assert.equal('<!DOCTYPE html><input type="checkbox" checked>', pug.render('doctype html\ninput(type="checkbox", checked)'));
      assert.equal('<!DOCTYPE html><input type="checkbox" checked>', pug.render('doctype html\ninput(type="checkbox", checked=true)'));
      assert.equal('<!DOCTYPE html><input type="checkbox">', pug.render('doctype html\ninput(type="checkbox", checked= false)'));
    });

    it('should support multi-line attrs', function(){
      assert.equal('<a foo="bar" bar="baz" checked="checked">foo</a>', pug.render('a(foo="bar"\n  bar="baz"\n  checked) foo'));
      assert.equal('<a foo="bar" bar="baz" checked="checked">foo</a>', pug.render('a(foo="bar"\nbar="baz"\nchecked) foo'));
      assert.equal('<a foo="bar" bar="baz" checked="checked">foo</a>', pug.render('a(foo="bar"\n,bar="baz"\n,checked) foo'));
      assert.equal('<a foo="bar" bar="baz" checked="checked">foo</a>', pug.render('a(foo="bar",\nbar="baz",\nchecked) foo'));
    });

    it('should support attrs', function(){
      assert.equal('<img src="&lt;script&gt;"/>', pug.render('img(src="<script>")'), 'Test attr escaping');

      assert.equal('<a data-attr="bar"></a>', pug.render('a(data-attr="bar")'));
      assert.equal('<a data-attr="bar" data-attr-2="baz"></a>', pug.render('a(data-attr="bar", data-attr-2="baz")'));

      assert.equal('<a title="foo,bar"></a>', pug.render('a(title= "foo,bar")'));
      assert.equal('<a title="foo,bar" href="#"></a>', pug.render('a(title= "foo,bar", href="#")'));

      assert.equal('<p class="foo"></p>', pug.render("p(class='foo')"), 'Test single quoted attrs');
      assert.equal('<input type="checkbox" checked="checked"/>', pug.render('input( type="checkbox", checked )'));
      assert.equal('<input type="checkbox" checked="checked"/>', pug.render('input( type="checkbox", checked = true )'));
      assert.equal('<input type="checkbox"/>', pug.render('input(type="checkbox", checked= false)'));
      assert.equal('<input type="checkbox"/>', pug.render('input(type="checkbox", checked= null)'));
      assert.equal('<input type="checkbox"/>', pug.render('input(type="checkbox", checked= undefined)'));

      assert.equal('<img src="/foo.png"/>', pug.render('img(src="/foo.png")'), 'Test attr =');
      assert.equal('<img src="/foo.png"/>', pug.render('img(src  =  "/foo.png")'), 'Test attr = whitespace');
      assert.equal('<img src="/foo.png"/>', pug.render('img(src="/foo.png")'), 'Test attr :');
      assert.equal('<img src="/foo.png"/>', pug.render('img(src  =  "/foo.png")'), 'Test attr : whitespace');

      assert.equal('<img src="/foo.png" alt="just some foo"/>', pug.render('img(src="/foo.png", alt="just some foo")'));
      assert.equal('<img src="/foo.png" alt="just some foo"/>', pug.render('img(src = "/foo.png", alt = "just some foo")'));

      assert.equal('<p class="foo,bar,baz"></p>', pug.render('p(class="foo,bar,baz")'));
      assert.equal('<a href="http://google.com" title="Some : weird = title"></a>', pug.render('a(href= "http://google.com", title= "Some : weird = title")'));
      assert.equal('<label for="name"></label>', pug.render('label(for="name")'));
      assert.equal('<meta name="viewport" content="width=device-width"/>', pug.render("meta(name= 'viewport', content='width=device-width')"), 'Test attrs that contain attr separators');
      assert.equal('<div style="color= white"></div>', pug.render("div(style='color= white')"));
      assert.equal('<div style="color: white"></div>', pug.render("div(style='color: white')"));
      assert.equal('<p class="foo"></p>', pug.render("p('class'='foo')"), 'Test keys with single quotes');
      assert.equal('<p class="foo"></p>', pug.render("p(\"class\"= 'foo')"), 'Test keys with double quotes');

      assert.equal('<p data-lang="en"></p>', pug.render('p(data-lang = "en")'));
      assert.equal('<p data-dynamic="true"></p>', pug.render('p("data-dynamic"= "true")'));
      assert.equal('<p class="name" data-dynamic="true"></p>', pug.render('p("class"= "name", "data-dynamic"= "true")'));
      assert.equal('<p data-dynamic="true"></p>', pug.render('p(\'data-dynamic\'= "true")'));
      assert.equal('<p class="name" data-dynamic="true"></p>', pug.render('p(\'class\'= "name", \'data-dynamic\'= "true")'));
      assert.equal('<p class="name" data-dynamic="true" yay="yay"></p>', pug.render('p(\'class\'= "name", \'data-dynamic\'= "true", yay)'));

      assert.equal('<input checked="checked" type="checkbox"/>', pug.render('input(checked, type="checkbox")'));

      assert.equal('<a data-foo="{ foo: \'bar\', bar= \'baz\' }"></a>', pug.render('a(data-foo  = "{ foo: \'bar\', bar= \'baz\' }")'));

      assert.equal('<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"/>', pug.render('meta(http-equiv="X-UA-Compatible", content="IE=edge,chrome=1")'));

      assert.equal('<div style="background: url(/images/test.png)">Foo</div>', pug.render("div(style= 'background: url(/images/test.png)') Foo"));
      assert.equal('<div style="background = url(/images/test.png)">Foo</div>', pug.render("div(style= 'background = url(/images/test.png)') Foo"));
      assert.equal('<div style="foo">Foo</div>', pug.render("div(style= ['foo', 'bar'][0]) Foo"));
      assert.equal('<div style="bar">Foo</div>', pug.render("div(style= { foo: 'bar', baz: 'raz' }['foo']) Foo"));
      assert.equal('<a href="def">Foo</a>', pug.render("a(href='abcdefg'.substr(3,3)) Foo"));
      assert.equal('<a href="def">Foo</a>', pug.render("a(href={test: 'abcdefg'}.test.substr(3,3)) Foo"));
      assert.equal('<a href="def">Foo</a>', pug.render("a(href={test: 'abcdefg'}.test.substr(3,[0,3][1])) Foo"));

      assert.equal('<rss xmlns:atom="atom"></rss>', pug.render("rss(xmlns:atom=\"atom\")"));
      assert.equal('<rss xmlns:atom="atom"></rss>', pug.render("rss('xmlns:atom'=\"atom\")"));
      assert.equal('<rss xmlns:atom="atom"></rss>', pug.render("rss(\"xmlns:atom\"='atom')"));
      assert.equal('<rss xmlns:atom="atom" foo="bar"></rss>', pug.render("rss('xmlns:atom'=\"atom\", 'foo'= 'bar')"));
      assert.equal('<a data-obj="{ foo: \'bar\' }"></a>', pug.render("a(data-obj= \"{ foo: 'bar' }\")"));

      assert.equal('<meta content="what\'s up? \'weee\'"/>', pug.render('meta(content="what\'s up? \'weee\'")'));
    });

    it('should support class attr array', function(){
      assert.equal('<body class="foo bar baz"></body>', pug.render('body(class=["foo", "bar", "baz"])'));
    });

    it('should support attr parens', function(){
      assert.equal('<p foo="bar">baz</p>', pug.render('p(foo=((("bar"))))= ((("baz")))'));
    });

    it('should support code attrs', function(){
      assert.equal('<p></p>', pug.render('p(id= name)', { name: undefined }));
      assert.equal('<p></p>', pug.render('p(id= name)', { name: null }));
      assert.equal('<p></p>', pug.render('p(id= name)', { name: false }));
      assert.equal('<p id=""></p>', pug.render('p(id= name)', { name: '' }));
      assert.equal('<p id="tj"></p>', pug.render('p(id= name)', { name: 'tj' }));
      assert.equal('<p id="default"></p>', pug.render('p(id= name || "default")', { name: null }));
      assert.equal('<p id="something"></p>', pug.render("p(id= 'something')", { name: null }));
      assert.equal('<p id="something"></p>', pug.render("p(id = 'something')", { name: null }));
      assert.equal('<p id="foo"></p>', pug.render("p(id= (true ? 'foo' : 'bar'))"));
      assert.equal('<option value="">Foo</option>', pug.render("option(value='') Foo"));
    });

    it('should support code attrs class', function(){
      assert.equal('<p class="tj"></p>', pug.render('p(class= name)', { name: 'tj' }));
      assert.equal('<p class="tj"></p>', pug.render('p( class= name )', { name: 'tj' }));
      assert.equal('<p class="default"></p>', pug.render('p(class= name || "default")', { name: null }));
      assert.equal('<p class="foo default"></p>', pug.render('p.foo(class= name || "default")', { name: null }));
      assert.equal('<p class="default foo"></p>', pug.render('p(class= name || "default").foo', { name: null }));
      assert.equal('<p id="default"></p>', pug.render('p(id = name || "default")', { name: null }));
      assert.equal('<p id="user-1"></p>', pug.render('p(id = "user-" + 1)'));
      assert.equal('<p class="user-1"></p>', pug.render('p(class = "user-" + 1)'));
    });

    it('should support code buffering', function(){
      assert.equal('<p></p>', pug.render('p= null'));
      assert.equal('<p></p>', pug.render('p= undefined'));
      assert.equal('<p>0</p>', pug.render('p= 0'));
      assert.equal('<p>false</p>', pug.render('p= false'));
    });

    it('should support script text', function(){
      var str = [
        'script.',
        '  p foo',
        '',
        'script(type="text/template")',
        '  p foo',
        '',
        'script(type="text/template").',
        '  p foo'
      ].join('\n');

      var html = [
        '<script>p foo\n</script>',
        '<script type="text/template"><p>foo</p></script>',
        '<script type="text/template">p foo</script>'
      ].join('');

      assert.equal(html, pug.render(str));
    });

    it('should support comments', function(){
      // Regular
      var str = [
          '//foo',
          'p bar'
      ].join('\n');

      var html = [
          '<!--foo-->',
          '<p>bar</p>'
      ].join('');

      assert.equal(html, pug.render(str));

      // Between tags

      var str = [
          'p foo',
          '// bar ',
          'p baz'
      ].join('\n');

      var html = [
          '<p>foo</p>',
          '<!-- bar -->',
          '<p>baz</p>'
      ].join('');

      assert.equal(html, pug.render(str));

      // Quotes

      var str = "<!-- script(src: '/js/validate.js') -->",
          js = "// script(src: '/js/validate.js') ";
      assert.equal(str, pug.render(js));
    });

    it('should support unbuffered comments', function(){
      var str = [
          '//- foo',
          'p bar'
      ].join('\n');

      var html = [
          '<p>bar</p>'
      ].join('');

      assert.equal(html, pug.render(str));

      var str = [
          'p foo',
          '//- bar ',
          'p baz'
      ].join('\n');

      var html = [
          '<p>foo</p>',
          '<p>baz</p>'
      ].join('');

      assert.equal(html, pug.render(str));
    });

    it('should support literal html', function(){
      assert.equal('<!--[if IE lt 9]>weeee<![endif]-->', pug.render('<!--[if IE lt 9]>weeee<![endif]-->'));
    });

    it('should support code', function(){
      assert.equal('test', pug.render('!= "test"'));
      assert.equal('test', pug.render('= "test"'));
      assert.equal('test', pug.render('- var foo = "test"\n=foo'));
      assert.equal('foo<em>test</em>bar', pug.render('- var foo = "test"\n| foo\nem= foo\n| bar'));
      assert.equal('test<h2>something</h2>', pug.render('!= "test"\nh2 something'));

      var str = [
          '- var foo = "<script>";',
          '= foo',
          '!= foo'
      ].join('\n');

      var html = [
          '&lt;script&gt;',
          '<script>'
      ].join('');

      assert.equal(html, pug.render(str));

      var str = [
          '- var foo = "<script>";',
          '- if (foo)',
          '  p= foo'
      ].join('\n');

      var html = [
          '<p>&lt;script&gt;</p>'
      ].join('');

      assert.equal(html, pug.render(str));

      var str = [
          '- var foo = "<script>";',
          '- if (foo)',
          '  p!= foo'
      ].join('\n');

      var html = [
          '<p><script></p>'
      ].join('');

      assert.equal(html, pug.render(str));

      var str = [
          '- var foo;',
          '- if (foo)',
          '  p.hasFoo= foo',
          '- else',
          '  p.noFoo no foo'
      ].join('\n');

      var html = [
          '<p class="noFoo">no foo</p>'
      ].join('');

      assert.equal(html, pug.render(str));

      var str = [
          '- var foo;',
          '- if (foo)',
          '  p.hasFoo= foo',
          '- else if (true)',
          '  p kinda foo',
          '- else',
          '  p.noFoo no foo'
      ].join('\n');

      var html = [
          '<p>kinda foo</p>'
      ].join('');

      assert.equal(html, pug.render(str));

      var str = [
          'p foo',
          '= "bar"',
      ].join('\n');

      var html = [
          '<p>foo</p>bar'
      ].join('');

      assert.equal(html, pug.render(str));

      var str = [
          'title foo',
          '- if (true)',
          '  p something',
      ].join('\n');

      var html = [
          '<title>foo</title><p>something</p>'
      ].join('');

      assert.equal(html, pug.render(str));

      var str = [
          'foo',
          '  bar= "bar"',
          '    baz= "baz"',
      ].join('\n');

      var html = [
          '<foo>',
          '<bar>bar',
          '<baz>baz</baz>',
          '</bar>',
          '</foo>'
      ].join('');

      assert.equal(html, pug.render(str));

      var str = [
          '-',
          '  var a =',
          '    5;',
          'p= a'
      ].join('\n')

      var html = [
          '<p>5</p>'
      ].join('');

      assert.equal(html, pug.render(str));
    });

    it('should support each', function(){
      // Array
      var str = [
          '- var items = ["one", "two", "three"];',
          'each item in items',
          '  li= item'
      ].join('\n');

      var html = [
          '<li>one</li>',
          '<li>two</li>',
          '<li>three</li>'
      ].join('');

      assert.equal(html, pug.render(str));

      // Any enumerable (length property)
      var str = [
          '- var jQuery = { length: 3, 0: 1, 1: 2, 2: 3 };',
          'each item in jQuery',
          '  li= item'
      ].join('\n');

      var html = [
          '<li>1</li>',
          '<li>2</li>',
          '<li>3</li>'
      ].join('');

      assert.equal(html, pug.render(str));

      // Empty array
      var str = [
          '- var items = [];',
          'each item in items',
          '  li= item'
      ].join('\n');

      assert.equal('', pug.render(str));

      // Object
      var str = [
          '- var obj = { foo: "bar", baz: "raz" };',
          'each val in obj',
          '  li= val'
      ].join('\n');

      var html = [
          '<li>bar</li>',
          '<li>raz</li>'
      ].join('');

      assert.equal(html, pug.render(str));

      // Complex
      var str = [
          '- var obj = { foo: "bar", baz: "raz" };',
          'each key in Object.keys(obj)',
          '  li= key'
      ].join('\n');

      var html = [
          '<li>foo</li>',
          '<li>baz</li>'
      ].join('');

      assert.equal(html, pug.render(str));

      // Keys
      var str = [
          '- var obj = { foo: "bar", baz: "raz" };',
          'each val, key in obj',
          '  li #{key}: #{val}'
      ].join('\n');

      var html = [
          '<li>foo: bar</li>',
          '<li>baz: raz</li>'
      ].join('');

      assert.equal(html, pug.render(str));

      // Nested
      var str = [
          '- var users = [{ name: "tj" }]',
          'each user in users',
          '  each val, key in user',
          '    li #{key} #{val}',
      ].join('\n');

      var html = [
          '<li>name tj</li>'
      ].join('');

      assert.equal(html, pug.render(str));

      var str = [
          '- var users = ["tobi", "loki", "jane"]',
          'each user in users',
          '  li= user',
      ].join('\n');

      var html = [
          '<li>tobi</li>',
          '<li>loki</li>',
          '<li>jane</li>',
      ].join('');

      assert.equal(html, pug.render(str));

      var str = [
          '- var users = ["tobi", "loki", "jane"]',
          'for user in users',
          '  li= user',
      ].join('\n');

      var html = [
          '<li>tobi</li>',
          '<li>loki</li>',
          '<li>jane</li>',
      ].join('');

      assert.equal(html, pug.render(str));
    });

    it('should support if', function(){
      var str = [
          '- var users = ["tobi", "loki", "jane"]',
          'if users.length',
          '  p users: #{users.length}',
      ].join('\n');

      assert.equal('<p>users: 3</p>', pug.render(str));

      assert.equal('<iframe foo="bar"></iframe>', pug.render('iframe(foo="bar")'));
    });

    it('should support unless', function(){
      var str = [
          '- var users = ["tobi", "loki", "jane"]',
          'unless users.length',
          '  p no users',
      ].join('\n');

      assert.equal('', pug.render(str));

      var str = [
          '- var users = []',
          'unless users.length',
          '  p no users',
      ].join('\n');

      assert.equal('<p>no users</p>', pug.render(str));
    });

    it('should support else', function(){
      var str = [
          '- var users = []',
          'if users.length',
          '  p users: #{users.length}',
          'else',
          '  p users: none',
      ].join('\n');

      assert.equal('<p>users: none</p>', pug.render(str));
    });

    it('should else if', function(){
      var str = [
          '- var users = ["tobi", "jane", "loki"]',
          'for user in users',
          '  if user == "tobi"',
          '    p awesome #{user}',
          '  else if user == "jane"',
          '    p lame #{user}',
          '  else',
          '    p #{user}',
      ].join('\n');

      assert.equal('<p>awesome tobi</p><p>lame jane</p><p>loki</p>', pug.render(str));
    });

    it('should include block', function(){
      var str = [
          'html',
          '  head',
          '    include fixtures/scripts.pug',
          '      scripts(src="/app.js")',
      ].join('\n');

      assert.equal('<html><head><script src=\"/jquery.js\"></script><script src=\"/caustic.js\"></script><scripts src=\"/app.js\"></scripts></head></html>'
      , pug.render(str, { filename: __dirname + '/pug.test.js' }));
    });

    it('should not fail on js newlines', function(){
      assert.equal("<p>foo\u2028bar</p>", pug.render("p foo\u2028bar"));
      assert.equal("<p>foo\u2029bar</p>", pug.render("p foo\u2029bar"));
    });

    it('should display error line number correctly up to token level', function() {
      var str = [
        'p.',
        '  Lorem ipsum dolor sit amet, consectetur',
        '  adipisicing elit, sed do eiusmod tempor',
        '  incididunt ut labore et dolore magna aliqua.',
        'p.',
        '  Ut enim ad minim veniam, quis nostrud',
        '  exercitation ullamco laboris nisi ut aliquip',
        '  ex ea commodo consequat.',
        'p.',
        '  Duis aute irure dolor in reprehenderit',
        '  in voluptate velit esse cillum dolore eu',
        '  fugiat nulla pariatur.',
        'a(href="#" Next',
      ].join('\n');
      var errorLocation = function(str) {
        try {
          pug.render(str);
        } catch (err) {
          return err.message.split('\n')[0];
        }
      };
      assert.equal(errorLocation(str), "Pug:13:16");
    });
  });

  describe('.compileFile()', function () {
    it('does not produce warnings for issue-1593', function () {
      pug.compileFile(__dirname + '/fixtures/issue-1593/index.pug');
    });
    it('should support caching (pass 1)', function () {
      fs.writeFileSync(__dirname + '/temp/input-compileFile.pug', '.foo bar');
      var fn = pug.compileFile(__dirname + '/temp/input-compileFile.pug',
                                { cache: true });
      var expected = '<div class="foo">bar</div>';
      assert(fn() === expected);
    });
    it('should support caching (pass 2)', function () {
      // Poison the input file
      fs.writeFileSync(__dirname + '/temp/input-compileFile.pug', '.big fat hen');
      var fn = pug.compileFile(__dirname + '/temp/input-compileFile.pug',
                                { cache: true });
      var expected = '<div class="foo">bar</div>';
      assert(fn() === expected);
    });
  });

  describe('.render()', function () {
    it('should support .pug.render(str, fn)', function(){
      pug.render('p foo bar', function(err, str){
        assert.ok(!err);
        assert.equal('<p>foo bar</p>', str);
      });
    });

    it('should support .pug.render(str, options, fn)', function(){
      pug.render('p #{foo}', { foo: 'bar' }, function(err, str){
        assert.ok(!err);
        assert.equal('<p>bar</p>', str);
      });
    });

    it('should support .pug.render(str, options, fn) cache', function(){
      pug.render('p bar', { cache: true }, function(err, str){
        assert.ok(/the "filename" option is required for caching/.test(err.message));
      });

      pug.render('p foo bar', { cache: true, filename: 'test' }, function(err, str){
        assert.ok(!err);
        assert.equal('<p>foo bar</p>', str);
      });
    });
  })

  describe('.compile()', function(){
    it('should support .compile()', function(){
      var fn = pug.compile('p foo');
      assert.equal('<p>foo</p>', fn());
    });

    it('should support .compile() locals', function(){
      var fn = pug.compile('p= foo');
      assert.equal('<p>bar</p>', fn({ foo: 'bar' }));
    });

    it('should support .compile() locals in \'self\' hash', function(){
      var fn = pug.compile('p= self.foo', {self: true});
      assert.equal('<p>bar</p>', fn({ foo: 'bar' }));
    });

    it('should support .compile() no debug', function(){
      var fn = pug.compile('p foo\np #{bar}', {compileDebug: false});
      assert.equal('<p>foo</p><p>baz</p>', fn({bar: 'baz'}));
    });

    it('should support .compile() no debug and global helpers', function(){
      var fn = pug.compile('p foo\np #{bar}', {compileDebug: false, helpers: 'global'});
      assert.equal('<p>foo</p><p>baz</p>', fn({bar: 'baz'}));
    });

    it('should be reasonably fast', function(){
      pug.compile(perfTest, {})
    });
    it('allows trailing space (see #1586)', function () {
      var res = pug.render('ul \n  li An Item');
      assert.equal('<ul> <li>An Item</li></ul>', res);
    });
  });

  describe('.compileClient()', function () {
    it('should support pug.compileClient(str)', function () {
      var src = fs.readFileSync(__dirname + '/cases/basic.pug');
      var expected = fs.readFileSync(__dirname + '/cases/basic.html', 'utf8').replace(/\s/g, '');
      var fn = pug.compileClient(src);
      fn = Function('pug', fn.toString() + '\nreturn template;')(pug.runtime);
      var actual = fn({name: 'foo'}).replace(/\s/g, '');
      expect(actual).toBe(expected);
    });
    it('should support pug.compileClient(str, options)', function () {
      var src = '.bar= self.foo';
      var fn = pug.compileClient(src, {self: true});
      fn = Function('pug', fn.toString() + '\nreturn template;')(pug.runtime);
      var actual = fn({foo: 'baz'});
      expect(actual).toBe('<div class="bar">baz</div>');
    });
    it('should support module syntax in pug.compileClient(str, options) when inlineRuntimeFunctions it true', function () {
      var src = '.bar= self.foo';
      var fn = pug.compileClient(src, {self: true, module: true, inlineRuntimeFunctions: true});
      expect(fn).toMatchSnapshot();
      fs.writeFileSync(__dirname + '/temp/input-compileModuleFileClient.js', fn);
      var expected = '<div class="bar">baz</div>';
      var fn = require(__dirname + '/temp/input-compileModuleFileClient.js');
      expect(fn({foo: 'baz'})).toBe('<div class="bar">baz</div>');
    });
    it('should support module syntax in pug.compileClient(str, options) when inlineRuntimeFunctions it false', function () {
      var src = '.bar= self.foo';
      var fn = pug.compileClient(src, {self: true, module: true, inlineRuntimeFunctions: false});
      expect(fn).toMatchSnapshot();
      fs.writeFileSync(__dirname + '/temp/input-compileModuleFileClient.js', fn);
      var fn = require(__dirname + '/temp/input-compileModuleFileClient.js');
      expect(fn({foo: 'baz'})).toBe('<div class="bar">baz</div>');
    });
  });

  describe('.renderFile()', function () {
    it('will synchronously return a string', function () {
      var expected = fs.readFileSync(__dirname + '/cases/basic.html', 'utf8').replace(/\s/g, '');
      var actual = pug.renderFile(__dirname + '/cases/basic.pug', {name: 'foo'}).replace(/\s/g, '');
      assert(actual === expected);
    });
    it('when given a callback, it calls that rather than returning', function (done) {
      var expected = fs.readFileSync(__dirname + '/cases/basic.html', 'utf8').replace(/\s/g, '');
      pug.renderFile(__dirname + '/cases/basic.pug', {name: 'foo'}, function (err, actual) {
        if (err) return done(err);
        assert(actual.replace(/\s/g, '') === expected);
        done();
      });
    });
    it('when given a callback, it calls that rather than returning even if there are no options', function (done) {
      var expected = fs.readFileSync(__dirname + '/cases/basic.html', 'utf8').replace(/\s/g, '');
      pug.renderFile(__dirname + '/cases/basic.pug', function (err, actual) {
        if (err) return done(err);
        assert(actual.replace(/\s/g, '') === expected);
        done();
      });
    });
    it('when given a callback, it calls that with any errors', function (done) {
      pug.renderFile(__dirname + '/fixtures/runtime.error.pug', function (err, actual) {
        assert.ok(err);
        done();
      });
    });
    it('should support caching (pass 1)', function (done) {
      fs.writeFileSync(__dirname + '/temp/input-renderFile.pug', '.foo bar');
      pug.renderFile(__dirname + '/temp/input-renderFile.pug', { cache: true }, function (err, actual) {
        if (err) return done(err);
        assert.equal('<div class="foo">bar</div>', actual);
        done();
      });
    });
    it('should support caching (pass 2)', function (done) {
      // Poison the input file
      fs.writeFileSync(__dirname + '/temp/input-renderFile.pug', '.big fat hen');
      pug.renderFile(__dirname + '/temp/input-renderFile.pug', { cache: true }, function (err, actual) {
        if (err) return done(err);
        assert.equal('<div class="foo">bar</div>', actual);
        done();
      });
    });
  });

  describe('.compileFileClient(path, options)', function () {
    it('returns a string form of a function called `template`', function () {
      var src = pug.compileFileClient(__dirname + '/cases/basic.pug');
      var expected = fs.readFileSync(__dirname + '/cases/basic.html', 'utf8').replace(/\s/g, '');
      var fn = Function('pug', src + '\nreturn template;')(pug.runtime);
      var actual = fn({name: 'foo'}).replace(/\s/g, '');
      assert(actual === expected);
    });
    it('accepts the `name` option to rename the resulting function', function () {
      var src = pug.compileFileClient(__dirname + '/cases/basic.pug', {name: 'myTemplateName'});
      var expected = fs.readFileSync(__dirname + '/cases/basic.html', 'utf8').replace(/\s/g, '');
      var fn = Function('pug', src + '\nreturn myTemplateName;')(pug.runtime);
      var actual = fn({name: 'foo'}).replace(/\s/g, '');
      assert(actual === expected);
    });
    it('should support caching (pass 1)', function () {
      fs.writeFileSync(__dirname + '/temp/input-compileFileClient.pug', '.foo bar');
      var src = pug.compileFileClient(__dirname + '/temp/input-compileFileClient.pug',
                                        { name: 'myTemplateName',
                                          cache: true });
      var expected = '<div class="foo">bar</div>';
      var fn = Function('pug', src + '\nreturn myTemplateName;')(pug.runtime);
      assert(fn() === expected);
    });
    it('should support caching (pass 2)', function () {
      // Poison the input file
      fs.writeFileSync(__dirname + '/temp/input-compileFileClient.pug', '.big fat hen');
      var src = pug.compileFileClient(__dirname + '/temp/input-compileFileClient.pug',
                                        { name: 'myTemplateName',
                                          cache: true });
      var expected = '<div class="foo">bar</div>';
      var fn = Function('pug', src + '\nreturn myTemplateName;')(pug.runtime);
      assert(fn() === expected);
    });
  });

  describe('.runtime', function () {
    describe('.merge', function () {
      it('merges two attribute objects, giving precedensce to the second object', function () {
        assert.deepEqual(pug.runtime.merge({}, {'class': ['foo', 'bar'], 'foo': 'bar'}), {'class': ['foo', 'bar'], 'foo': 'bar'});
        assert.deepEqual(pug.runtime.merge({'class': ['foo'], 'foo': 'baz'}, {'class': ['bar'], 'foo': 'bar'}), {'class': ['foo', 'bar'], 'foo': 'bar'});
        assert.deepEqual(pug.runtime.merge({'class': ['foo', 'bar'], 'foo': 'bar'}, {}), {'class': ['foo', 'bar'], 'foo': 'bar'});
      });
    });
    describe('.attrs', function () {
      it('Renders the given attributes object', function () {
        assert.equal(pug.runtime.attrs({}), '');
        assert.equal(pug.runtime.attrs({'class': []}), '');
        assert.equal(pug.runtime.attrs({'class': ['foo']}), ' class="foo"');
        assert.equal(pug.runtime.attrs({'class': ['foo'], 'id': 'bar'}), ' class="foo" id="bar"');
      });
    });
  });

  describe('filter indentation', function () {
    it('is maintained', function () {
      var filters = {
        indents: function(str){
          return str.split(/\n/).map(function (line) { return line.match(/^ */)[0].length; }).join(",");
        }
      };

      var indents = [
        ':indents',
        '  x',
        '   x',
        '    x',
        '     x',
        '  x',
        '      x',
        '      x',
        '     x',
        '     x',
        '      x',
        '    x',
        '  x',
        '    x',
        '  x',
        '   x'
      ].join('\n');

      assert.equal(pug.render(indents, {filters: filters}), '0,1,2,3,0,4,4,3,3,4,2,0,2,0,1');
    });
  });

  describe('.compile().dependencies', function() {
    it('should list the filename of the template referenced by extends', function(){
      var filename = __dirname + '/dependencies/extends1.pug';
      var str = fs.readFileSync(filename, 'utf8');
      var info = pug.compile(str, {filename: filename});
      assert.deepEqual([
        path.resolve(__dirname + '/dependencies/dependency1.pug')
      ], info.dependencies);
    });
    it('should list the filename of the template referenced by an include', function() {
      var filename = __dirname + '/dependencies/include1.pug';
      var str = fs.readFileSync(filename, 'utf8');
      var info = pug.compile(str, {filename: filename});
      assert.deepEqual([
        path.resolve(__dirname + '/dependencies/dependency1.pug')
      ], info.dependencies);
    });
    it('should list the dependencies of extends dependencies', function() {
      var filename = __dirname + '/dependencies/extends2.pug';
      var str = fs.readFileSync(filename, 'utf8');
      var info = pug.compile(str, {filename: filename});
      assert.deepEqual([
        path.resolve(__dirname + '/dependencies/dependency2.pug'),
        path.resolve(__dirname + '/dependencies/dependency3.pug')
      ], info.dependencies);
    });
    it('should list the dependencies of include dependencies', function() {
      var filename = __dirname + '/dependencies/include2.pug';
      var str = fs.readFileSync(filename, 'utf8');
      var info = pug.compile(str, {filename: filename});
      assert.deepEqual([
        path.resolve(__dirname + '/dependencies/dependency2.pug'),
        path.resolve(__dirname + '/dependencies/dependency3.pug')
      ],info.dependencies);
    });
  });

  describe('.name', function() {
    it('should have a name attribute', function() {
      assert.strictEqual(pug.name, 'Pug');
    });
  });
});
