/*
Unit test for domutils
*/

assert = chai.assert;


// Tests the private Modules.domUtils object
// Modules.domUtils is unit tested as it has an interface access by other modules


describe('Modules.domutils', function() {


   it('ownerDocument', function(){
       var node = document.createElement('div');
       assert.equal( Modules.domUtils.ownerDocument( node ).nodeType,  9);
   });


   it('innerHTML', function(){
       var html = '<a href="http://glennjones.net">Glenn Jones</a>',
           node = document.createElement('div');

       node.innerHTML = html;
       assert.equal( Modules.domUtils.innerHTML( node ), html );
   });


   it('hasAttribute', function(){
       var node = document.createElement('a');

       node.href = 'http://glennjones.net';
       assert.isTrue( Modules.domUtils.hasAttribute( node, 'href' ) );
       assert.isFalse( Modules.domUtils.hasAttribute( node, 'class' ) );
   });


   it('hasAttributeValue', function(){
       var node = document.createElement('a');

       node.href = 'http://glennjones.net';
       assert.isTrue( Modules.domUtils.hasAttributeValue( node, 'href', 'http://glennjones.net' ) );
       assert.isFalse( Modules.domUtils.hasAttributeValue( node, 'href', 'http://example.net' ) );
       assert.isFalse( Modules.domUtils.hasAttributeValue( node, 'class', 'test' ) );
   });


   it('getAttribute', function(){
       var node = document.createElement('a');

       node.href = 'http://glennjones.net';
       assert.equal( Modules.domUtils.getAttribute( node, 'href' ),  'http://glennjones.net' );
   });


   it('setAttribute', function(){
       var node = document.createElement('a');

       Modules.domUtils.setAttribute(node, 'href', 'http://glennjones.net')
       assert.equal( Modules.domUtils.getAttribute( node, 'href' ),  'http://glennjones.net' );
   });


   it('removeAttribute', function(){
       var node = document.createElement('a');

       node.href = 'http://glennjones.net';
       Modules.domUtils.removeAttribute(node, 'href')
       assert.isFalse( Modules.domUtils.hasAttribute( node, 'href' ) );
   });


   it('getAttributeList', function(){
       var node = document.createElement('a');

       node.rel = 'next';
       assert.deepEqual( Modules.domUtils.getAttributeList( node, 'rel'),  ['next'] );
       node.rel = 'next bookmark';
       assert.deepEqual( Modules.domUtils.getAttributeList( node, 'rel'),  ['next','bookmark'] );
   });


   it('hasAttributeValue', function(){
       var node = document.createElement('a');

       node.href = 'http://glennjones.net';
       node.rel = 'next bookmark';
       assert.isTrue( Modules.domUtils.hasAttributeValue( node, 'href', 'http://glennjones.net' ) );
       assert.isFalse( Modules.domUtils.hasAttributeValue( node, 'href', 'http://codebits.glennjones.net' ) );
       assert.isFalse( Modules.domUtils.hasAttributeValue( node, 'class', 'p-name' ) );
       assert.isTrue( Modules.domUtils.hasAttributeValue( node, 'rel', 'bookmark' ) );
       assert.isFalse( Modules.domUtils.hasAttributeValue( node, 'rel', 'previous' ) );
   });


   it('getNodesByAttribute', function(){
       var node = document.createElement('ul');
       node.innerHTML = '<li class="h-card">one</li><li>two</li><li class="h-card">three</li>';

       assert.equal( Modules.domUtils.getNodesByAttribute( node, 'class' ).length, 2 );
       assert.equal( Modules.domUtils.getNodesByAttribute( node, 'href' ).length, 0 );
   });


   it('getNodesByAttributeValue', function(){
       var node = document.createElement('ul');
       node.innerHTML = '<li class="h-card">one</li><li>two</li><li class="h-card">three</li><li class="p-name">four</li>';

       assert.equal( Modules.domUtils.getNodesByAttributeValue( node, 'class', 'h-card' ).length, 2 );
       assert.equal( Modules.domUtils.getNodesByAttributeValue( node, 'class', 'p-name' ).length, 1 );
       assert.equal( Modules.domUtils.getNodesByAttributeValue( node, 'class', 'u-url' ).length, 0 );
   });


   it('getAttrValFromTagList', function(){
       var node = document.createElement('a');

       node.href = 'http://glennjones.net';

       assert.equal( Modules.domUtils.getAttrValFromTagList( node, ['a','area'], 'href' ), 'http://glennjones.net' );
       assert.equal( Modules.domUtils.getAttrValFromTagList( node, ['a','area'], 'class' ), null );
       assert.equal( Modules.domUtils.getAttrValFromTagList( node, ['p'], 'href' ), null );
   });


   it('getSingleDescendant', function(){
       var html = '<a class="u-url" href="http://glennjones.net">Glenn Jones</a>',
           node = document.createElement('div');

       node.innerHTML = html,

       // one instance of a element
       assert.equal( Modules.domUtils.getSingleDescendant( node ).outerHTML, html );

       // two instances of a element
       node.appendChild(document.createElement('a'));
       assert.equal( Modules.domUtils.getSingleDescendant( node ), null );

   });


   it('getSingleDescendantOfType', function(){
       var html = '<a class="u-url" href="http://glennjones.net">Glenn Jones</a>',
           node = document.createElement('div');

       node.innerHTML = html,

       // one instance of a element
       assert.equal( Modules.domUtils.getSingleDescendantOfType( node, ['a', 'link']).outerHTML, html );
       assert.equal( Modules.domUtils.getSingleDescendantOfType( node, ['img','area']), null );

       node.appendChild(document.createElement('p'));
       assert.equal( Modules.domUtils.getSingleDescendantOfType( node, ['a', 'link']).outerHTML, html );

       // two instances of a element
       node.appendChild(document.createElement('a'));
       assert.equal( Modules.domUtils.getSingleDescendantOfType( node, ['a', 'link']), null );

   });


   it('appendChild', function(){
       var node = document.createElement('div'),
           child = document.createElement('a');

       Modules.domUtils.appendChild( node, child );
       assert.equal( node.innerHTML, '<a></a>' );
   });


   it('removeChild', function(){
       var node = document.createElement('div'),
           child = document.createElement('a');

       node.appendChild(child)

       assert.equal( node.innerHTML, '<a></a>' );
       Modules.domUtils.removeChild( child );
       assert.equal( node.innerHTML, '' );
   });


   it('clone', function(){
       var node = document.createElement('div');

       node.innerHTML = 'text content';
       assert.equal( Modules.domUtils.clone( node ).outerHTML, '<div>text content</div>' );
   });


   it('getElementText', function(){
       assert.equal(  Modules.domUtils.getElementText( {} ), '' );
   });


   it('getNodePath', function(){
       var node = document.createElement('ul');
       node.innerHTML = '<div><ul><li class="h-card">one</li><li>two</li><li class="h-card">three</li><li class="p-name">four</li></ul></div>';
       var child = node.querySelector('.p-name');

       assert.deepEqual( Modules.domUtils.getNodePath( child ), [0,0,3] );
   });


});