rewrite fragment sorting to account for multiple fragments with the same index

2 files changed, 48 insertions, 17 deletions

diff --git a/test/test.html b/test/test.html
index 81d2f16..094f3c7 100644
--- a/test/test.html
+++ b/test/test.html
@@ -35,13 +35,32 @@
 					</section>
 				</section>
 
-				<section>
-					<h1>4</h1>
-					<ul>
-						<li class="fragment">4.1</li>
-						<li class="fragment">4.2</li>
-						<li class="fragment">4.3</li>
-					</ul>
+				<section id="fragment-slides">
+					<section>
+						<h1>3.1</h1>
+						<ul>
+							<li class="fragment">4.1</li>
+							<li class="fragment">4.2</li>
+							<li class="fragment">4.3</li>
+						</ul>
+					</section>
+
+					<section>
+						<h1>3.2</h1>
+						<ul>
+							<li class="fragment" data-fragment-index="0">4.1</li>
+							<li class="fragment" data-fragment-index="0">4.2</li>
+						</ul>
+					</section>
+
+					<section>
+						<h1>3.3</h1>
+						<ul>
+							<li class="fragment" data-fragment-index="1">3.3.1</li>
+							<li class="fragment" data-fragment-index="4">3.3.2</li>
+							<li class="fragment" data-fragment-index="4">3.3.3</li>
+						</ul>
+					</section>
 				</section>
 
 				<section>
diff --git a/test/test.js b/test/test.js
index 5974e3e..f01eb49 100644
--- a/test/test.js
+++ b/test/test.js
@@ -5,6 +5,7 @@
 // 1
 // 2 - Three sub-slides
 // 3 - Three fragment elements
+// 3 - Two fragments with same data-fragment-index
 // 4
 
 
@@ -128,7 +129,7 @@ Reveal.addEventListener( 'ready', function() {
 	test( 'Reveal.next', function() {
 		Reveal.slide( 0, 0 );
 
-		// Step through the vertical child slides
+		// Step through vertical child slides
 		Reveal.next();
 		deepEqual( Reveal.getIndices(), { h: 1, v: 0, f: undefined } );
 
@@ -138,7 +139,7 @@ Reveal.addEventListener( 'ready', function() {
 		Reveal.next();
 		deepEqual( Reveal.getIndices(), { h: 1, v: 2, f: undefined } );
 
-		// There's fragments on this slide
+		// Step through fragments
 		Reveal.next();
 		deepEqual( Reveal.getIndices(), { h: 2, v: 0, f: -1 } );
 
@@ -150,11 +151,15 @@ Reveal.addEventListener( 'ready', function() {
 
 		Reveal.next();
 		deepEqual( Reveal.getIndices(), { h: 2, v: 0, f: 2 } );
+	});
+
+	test( 'Reveal.next at end', function() {
+		Reveal.slide( 3 );
 
+		// We're at the end, this should have no effect
 		Reveal.next();
 		deepEqual( Reveal.getIndices(), { h: 3, v: 0, f: undefined } );
 
-		// We're at the end, this should have no effect
 		Reveal.next();
 		deepEqual( Reveal.getIndices(), { h: 3, v: 0, f: undefined } );
 	});
@@ -180,17 +185,17 @@ Reveal.addEventListener( 'ready', function() {
 	});
 
 	test( 'Hiding all fragments', function() {
-		var fragmentSlide = document.querySelector( '.reveal .slides>section:nth-child(3)' );
+		var fragmentSlide = document.querySelector( '#fragment-slides>section:nth-child(1)' );
 
 		Reveal.slide( 2, 0, 0 );
 		strictEqual( fragmentSlide.querySelectorAll( '.fragment.visible' ).length, 1, 'one fragment visible when index is 0' );
 
 		Reveal.slide( 2, 0, -1 );
-		strictEqual( fragmentSlide.querySelectorAll( '.fragment.visible' ).length, 0, 'no fragments visible when index 0' );
+		strictEqual( fragmentSlide.querySelectorAll( '.fragment.visible' ).length, 0, 'no fragments visible when index is -1' );
 	});
 
 	test( 'Current fragment', function() {
-		var fragmentSlide = document.querySelector( '.reveal .slides>section:nth-child(3)' );
+		var fragmentSlide = document.querySelector( '#fragment-slides>section:nth-child(1)' );
 
 		Reveal.slide( 2, 0 );
 		strictEqual( fragmentSlide.querySelectorAll( '.fragment.current-fragment' ).length, 0, 'no current fragment at index -1' );
@@ -224,17 +229,17 @@ Reveal.addEventListener( 'ready', function() {
 		// backwards:
 
 		Reveal.prev();
-		deepEqual( Reveal.getIndices(), { h: 2, v: 0, f: 1 }, 'prev() goes to prev fragment' );
+		deepEqual( Reveal.getIndices(), { h: 2, v: 0, f: 2 }, 'prev() goes to prev fragment' );
 
 		Reveal.left();
-		deepEqual( Reveal.getIndices(), { h: 2, v: 0, f: 0 }, 'left() goes to prev fragment' );
+		deepEqual( Reveal.getIndices(), { h: 2, v: 0, f: 1 }, 'left() goes to prev fragment' );
 
 		Reveal.up();
-		deepEqual( Reveal.getIndices(), { h: 2, v: 0, f: -1 }, 'up() goes to prev fragment' );
+		deepEqual( Reveal.getIndices(), { h: 2, v: 0, f: 0 }, 'up() goes to prev fragment' );
 	});
 
 	test( 'Stepping past fragments', function() {
-		var fragmentSlide = document.querySelector( '.reveal .slides>section:nth-child(3)' );
+		var fragmentSlide = document.querySelector( '#fragment-slides>section:first-child' );
 
 		Reveal.slide( 0, 0, 0 );
 		equal( fragmentSlide.querySelectorAll( '.fragment.visible' ).length, 0, 'no fragments visible when on previous slide' );
@@ -243,6 +248,13 @@ Reveal.addEventListener( 'ready', function() {
 		equal( fragmentSlide.querySelectorAll( '.fragment.visible' ).length, 3, 'all fragments visible when on future slide' );
 	});
 
+	test( 'Fragment indices', function() {
+		var fragmentSlide = document.querySelector( '#fragment-slides>section:nth-child(2)' );
+
+		Reveal.slide( 3, 0, 0 );
+		equal( fragmentSlide.querySelectorAll( '.fragment.visible' ).length, 2, 'both fragments of same index are shown' );
+	});
+
 	asyncTest( 'fragmentshown event', function() {
 		expect( 2 );