Discard hidden articles when using fast path

javatests/org/chromium/distiller/ContentExtractorTest.java

Index: javatests/org/chromium/distiller/ContentExtractorTest.java
diff --git a/javatests/org/chromium/distiller/ContentExtractorTest.java b/javatests/org/chromium/distiller/ContentExtractorTest.java
index 0b03d6a9dd95b2177f5233aaa61e93beb6229ef7..81dfe18c1dc7cc9a2c4da6a1a3e9b6aec8ca9beb 100644
--- a/javatests/org/chromium/distiller/ContentExtractorTest.java
+++ b/javatests/org/chromium/distiller/ContentExtractorTest.java
@@ -512,6 +512,17 @@ public class ContentExtractorTest extends DomDistillerJsTestCase {
         assertExtractor(article, htmlArticle);
     }
 
+    public void testOnlyProcessArticleElementWithHiddenArticleElement() {
+        final String article = "<p>" + CONTENT_TEXT + "</p><p>" + CONTENT_TEXT + "</p>";
+
+        final String htmlArticle =
+            "<h1>" + CONTENT_TEXT + "</h1>" +
+            "<article>" + article + "</article>" +
+            "<article style=\"display:none\">" + article + "</article>";
+
+        assertExtractor(article, htmlArticle);
+    }
+
     public void testOnlyProcessArticleElementMultiple() {
         final String article = "<p>" + CONTENT_TEXT + "</p><p>" + CONTENT_TEXT + "</p>";
 
@@ -525,6 +536,20 @@ public class ContentExtractorTest extends DomDistillerJsTestCase {
         assertExtractor(expected, htmlArticle);
     }
 
+    public void testOnlyProcessArticleElementMultipleWithHiddenArticleElement() {
+        final String article = "<p>" + CONTENT_TEXT + "</p><p>" + CONTENT_TEXT + "</p>";
+
+        final String htmlArticle =
+            "<h1>" + CONTENT_TEXT + "</h1>" +
+            "<article>" + article + "</article>" +
+            "<article style=\"display:none\">" + article + "</article>" +
+            "<article>" + article + "</article>";
+        final String expected = "<h1>" + CONTENT_TEXT + "</h1>" + article + article;
+
+        // The existence of multiple articles disables the fast path.
+        assertExtractor(expected, htmlArticle);
+    }
+
     public void testOnlyProcessOGArticle() {
         final String article = "<p>" + CONTENT_TEXT + "</p><p>" + CONTENT_TEXT + "</p>";
 
@@ -535,6 +560,18 @@ public class ContentExtractorTest extends DomDistillerJsTestCase {
         assertExtractor(article, htmlArticle);
     }
 
+    public void testOnlyProcessOGArticleWithHiddenArticleElement() {
+        final String article = "<p>" + CONTENT_TEXT + "</p><p>" + CONTENT_TEXT + "</p>";
+
+        final String htmlArticle =
+            "<h1>" + CONTENT_TEXT + "</h1>" +
+            "<div itemscope itemtype=\"http://schema.org/Article\">" + article + "</div>" +
+            "<div itemscope itemtype=\"http://schema.org/Article\" style=\"display:none\">" +
+                    article + "</div>";
+
+        assertExtractor(article, htmlArticle);
+    }
+
     public void testOnlyProcessOGArticleNews() {
         final String article = "<p>" + CONTENT_TEXT + "</p><p>" + CONTENT_TEXT + "</p>";
 
@@ -545,6 +582,18 @@ public class ContentExtractorTest extends DomDistillerJsTestCase {
         assertExtractor(article, htmlArticle);
     }
 
+    public void testOnlyProcessOGArticleNewsWithHiddenArticleElement() {
+        final String article = "<p>" + CONTENT_TEXT + "</p><p>" + CONTENT_TEXT + "</p>";
+
+        final String htmlArticle =
+            "<h1>" + CONTENT_TEXT + "</h1>" +
+            "<div itemscope itemtype=\"http://schema.org/NewsArticle\">" + article + "</div>" +
+            "<div itemscope itemtype=\"http://schema.org/NewsArticle\" style=\"display:none\">" +
+                    article + "</div>";
+
+        assertExtractor(article, htmlArticle);
+    }
+
     public void testOnlyProcessOGArticleBlog() {
         final String article = "<p>" + CONTENT_TEXT + "</p><p>" + CONTENT_TEXT + "</p>";
 
@@ -555,6 +604,18 @@ public class ContentExtractorTest extends DomDistillerJsTestCase {
         assertExtractor(article, htmlArticle);
     }
 
+    public void testOnlyProcessOGArticleBlogWithHiddenArticleElement() {
+        final String article = "<p>" + CONTENT_TEXT + "</p><p>" + CONTENT_TEXT + "</p>";
+
+        final String htmlArticle =
+            "<h1>" + CONTENT_TEXT + "</h1>" +
+            "<div itemscope itemtype=\"http://schema.org/BlogPosting\">" + article + "</div>" +
+            "<div itemscope itemtype=\"http://schema.org/BlogPosting\" style=\"display:none\">" +
+                    article + "</div>";
+
+        assertExtractor(article, htmlArticle);
+    }
+
     public void testOnlyProcessOGArticleNested() {
         final String paragraph = "<p>" + CONTENT_TEXT + "</p>";
         final String article = paragraph + paragraph;
@@ -569,6 +630,38 @@ public class ContentExtractorTest extends DomDistillerJsTestCase {
         assertExtractor(article, htmlArticle);
     }
 
+    public void testOnlyProcessOGArticleNestedWithNestedHiddenArticleElement() {
+        final String paragraph = "<p>" + CONTENT_TEXT + "</p>";
+        final String article = paragraph + paragraph;
+
+        final String htmlArticle =
+            "<h1>" + CONTENT_TEXT + "</h1>" +
+            "<div itemscope itemtype=\"http://schema.org/Article\">" +
+                paragraph +
+                "<div itemscope itemtype=\"http://schema.org/Article\">" + paragraph + "</div>" +
+                "<div itemscope itemtype=\"http://schema.org/Article\" style=\"display:none\">" +
+                    article + "</div>" +
+            "</div>";
+
+        assertExtractor(article, htmlArticle);
+    }
+
+    public void testOnlyProcessOGArticleNestedWithHiddenArticleElement() {
+        final String paragraph = "<p>" + CONTENT_TEXT + "</p>";
+        final String article = paragraph + paragraph;
+
+        final String htmlArticle =
+             "<h1>" + CONTENT_TEXT + "</h1>" +
+             "<div itemscope itemtype=\"http://schema.org/Article\">" +
+                 paragraph +
+                 "<div itemscope itemtype=\"http://schema.org/Article\">" + paragraph + "</div>" +
+             "</div>" +
+             "<div itemscope itemtype=\"http://schema.org/Article\" style=\"display:none\">" +
+                 article + "</div>";
+
+        assertExtractor(article, htmlArticle);
+    }
+
     public void testOnlyProcessOGNonArticleMovie() {
         final String article = "<p>" + CONTENT_TEXT + "</p><p>" + CONTENT_TEXT + "</p>";