Added test code for Tobias's changes

ChangeLog

@@ -1,3 +1,10 @@
+2012-07-04  Jay Berkenbilt  <ejb@ql.org>
+
+	* Accept changes from Tobias Hoffmann: add public method
+	QPDF::pushInheritedAttributesToPage including warnings for
+	non-inherited keys that may be discarded from /Pages by
+	non-conformant PDF files when the /Pages tree is flattened.
+
 2012-06-27  Jay Berkenbilt  <ejb@ql.org>
 
 	* Add Pl_Concatenate pipeline for stream concatenation also

qpdf/qtest/qpdf.test

@@ -149,7 +149,7 @@ $td->runtest("remove page we don't have",
 	     $td->NORMALIZE_NEWLINES);
 # ----------
 $td->notify("--- Miscellaneous Tests ---");
-$n_tests += 40;
+$n_tests += 41;
 
 $td->runtest("qpdf version",
 	     {$td->COMMAND => "qpdf --version"},
@@ -354,6 +354,10 @@ $td->runtest("shallow copy a stream",
 	     {$td->COMMAND => "test_driver 21 shallow_array.pdf"},
 	     {$td->FILE => "shallow_stream.out", $td->EXIT_STATUS => 2},
 	     $td->NORMALIZE_NEWLINES);
+$td->runtest("warn for unknown key in Pages",
+             {$td->COMMAND => "test_driver 23 lin-special.pdf"},
+             {$td->FILE => "pages-warning.out", $td->EXIT_STATUS => 0},
+             $td->NORMALIZE_NEWLINES);
 
 show_ntests();
 # ----------

qpdf/qtest/qpdf/lin-special.pdf

@@ -22,13 +22,16 @@
 %        +---- page 5
 %
 % Node (A) defines /MediaBox (direct) and /Resources (indirect)
-% Node (B) overrides /MediaBox
+% Node (B) overrides /MediaBox and defines /Rotate
+% Node (B) defines /Quack, a non-standard key, which is not inherited
 % Page 1 overrides /Resources
 % Page 4 overrides /Resources
-% Page 5 overrides /MediaBox
+% Page 5 overrides /MediaBox and /Rotate
 %
 % Page 5 provides the case of two levels of shadowing on a resource.
 %
+% Node (B)'s overriding of /Rotate exercises inheriting a scalar.
+%
 % The /MediaBox defined in node (B) is shared between pages 3 and 4
 % but not page 1.  The /MediaBox defined in node (A) is shared between
 % pages 1 and 2 only.
@@ -58,6 +61,7 @@ endobj
 >>
 endobj
 
+% Node (A)
 3 0 obj
 <<
   /Count 5
@@ -73,7 +77,6 @@ endobj
     792
   ]
   /Resources 7 0 R
-  /Quack 16059
   /Type /Pages
 >>
 endobj
@@ -97,6 +100,7 @@ endobj
 >>
 endobj
 
+% Node (B)
 6 0 obj
 <<
   /Count 3
@@ -112,6 +116,8 @@ endobj
     396
   ]
   /Parent 3 0 R
+  /Rotate 0
+  /Quack 16059
   /Type /Pages
 >>
 endobj
@@ -205,6 +211,7 @@ endobj
     306
     396
   ]
+  /Rotate 180
   /Parent 6 0 R
   /Type /Page
 >>
@@ -316,39 +323,39 @@ endobj
 xref
 0 29
 0000000000 65535 f 
-0000001161 00000 n 
+0000001331 00000 n 
-0000001244 00000 n 
+0000001414 00000 n 
-0000001319 00000 n 
+0000001500 00000 n 
-0000001501 00000 n 
+0000001667 00000 n 
-0000001601 00000 n 
+0000001767 00000 n 
-0000001672 00000 n 
+0000001849 00000 n 
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-0000001923 00000 n 
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+0000002228 00000 n 
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+0000002445 00000 n 
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-0000002366 00000 n 
+0000002570 00000 n 
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-0000002644 00000 n 
+0000002862 00000 n 
-0000002763 00000 n 
+0000002981 00000 n 
-0000002799 00000 n 
+0000003017 00000 n 
-0000002947 00000 n 
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-0000003050 00000 n 
+0000003268 00000 n 
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+0000003311 00000 n 
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+0000003414 00000 n 
-0000003216 00000 n 
+0000003434 00000 n 
-0000003359 00000 n 
+0000003577 00000 n 
-0000003462 00000 n 
+0000003680 00000 n 
-0000003482 00000 n 
+0000003700 00000 n 
-0000003504 00000 n 
+0000003722 00000 n 
-0000003526 00000 n 
+0000003744 00000 n 
 trailer <<
   /Root 1 0 R
   /Size 29
   /ID [<ce9551b56c5a7e3b5b0ba6fa0d281296><a74aa55a69070b600e39f9ed1ed6c4df>]
 >>
 startxref
-3545
+3763
 %%EOF

qpdf/qtest/qpdf/pages-warning.out

@@ -0,0 +1,2 @@
+WARNING: lin-special.pdf (Pages object: object 6 0): Unknown key /Quack in /Pages object is being discarded as a result of flattening the /Pages tree
+test 23 done

qpdf/test_driver.cc

@@ -832,6 +832,12 @@ void runtest(int n, char const* filename)
         pdf.removePage(page);
         std::cout << "you can't see this" << std::endl;
     }
+    else if (n == 23)
+    {
+        // Try to remove a page we don't have
+        std::vector<QPDFObjectHandle> const& pages = pdf.getAllPages();
+        pdf.removePage(pages.back());
+    }
     else
     {
 	throw std::runtime_error(std::string("invalid test ") +