Add unit test for top-level bookmarks.

testing/resources/bookmarks.pdf

Index: testing/resources/bookmarks.pdf
diff --git a/testing/resources/named_dests.pdf b/testing/resources/bookmarks.pdf
similarity index 58%
copy from testing/resources/named_dests.pdf
copy to testing/resources/bookmarks.pdf
index 2e0e5ce71d69eda4c77fdf79185dd8ab806b6c14..824ce78db7c7a0787af5538547c82f40fbb8ce41 100644
--- a/testing/resources/named_dests.pdf
+++ b/testing/resources/bookmarks.pdf
@@ -3,10 +3,7 @@
 1 0 obj <<
   /Type /Catalog
   /Pages 2 0 R
-  /Names <<
-    /Dests 10 0 R
-  >>
-  /Dests 14 0 R
+  /Outlines 14 0 R
 >>
 endobj
 2 0 obj <<
@@ -40,36 +37,28 @@ endobj
   /MediaBox [0 0 612 792]
 >>
 endobj
-% Root of Dests NameTree
+% First bookmark
 10 0 obj <<
-  /Kids [
-    11 0 R
-    12 0 R
-  ]
+  /Title (A Good Beginning)
+  /Parent 14 0 R
+  /Next 11 0 R
+  /Dest (foo)
 >>
 endobj
-% Left child for Dests NameTree
+% Last bookmark
 11 0 obj <<
-  /Names [
-    (First) [1 /XYZ 0 0 1]
-    (Next) <</D [4 0 R /Fit]>>
-  ]
+  /Title (A Good Ending)
+  /Parent 14 0 R
+  /Prev 10 0 R
+  /Dest (bar)
 >>
 endobj
-% Right child for Dests NameTree
-12 0 obj <<
-  /Names [
-    (WrongKey)  <</Fail [10 /FitH]>>
-    (WrongType) /NameNotAllowedHere
-  ]
->>
-endobj
-% Old-style top-level Dests dictionary. Note that FirstAlternate
-% intentionally references non-exisstant page 11 and LastAlternate
-% intentionally references non-existant object 999.
+% Root bookmark
 14 0 obj <<
-  /FirstAlternate [11 /XYZ 200 400 800]
-  /LastAlternate  <</D [999 0 R /XYZ 0 0 -200]>>
+  /Type /Outlines
+  /First 10 0 R
+  /Last  11 0 R
+  /Count 2
 >>
 endobj
 % Font resource.
@@ -105,31 +94,31 @@ xref
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 trailer <<
   /Size 6
   /Root 1 0 R
 >>
 startxref
-1481
+1122
 %%EOF