Roll libxml to 3169602058bd2d04913909e869c61d1540bc7fb4

third_party/libxml/src/runtest.c

 /*
  * runtest.c: C program to run libxml2 regression tests without
  *            requiring make or Python, and reducing platform dependancies
  *            to a strict minimum.
  *
  * To compile on Unixes:
  * cc -o runtest `xml2-config --cflags` runtest.c `xml2-config --libs` -lpthread
  *
  * See Copyright for the status of this software.
  *
@@ skipping 2299 matching lines @@
 /************************************************************************
  *                                                                      *
  *              XPath and XPointer based tests                          *
  *                                                                      *
  ************************************************************************/
 
 static FILE *xpathOutput;
 static xmlDocPtr xpathDocument;
 
 static void
+ignoreGenericError(void *ctx ATTRIBUTE_UNUSED,
+        const char *msg ATTRIBUTE_UNUSED, ...) {
+}
+
+static void
 testXPath(const char *str, int xptr, int expr) {
+    xmlGenericErrorFunc handler = ignoreGenericError;
     xmlXPathObjectPtr res;
     xmlXPathContextPtr ctxt;
 
+    /* Don't print generic errors to stderr. */
+    initGenericErrorDefaultFunc(&handler);
+
     nb_tests++;
 #if defined(LIBXML_XPTR_ENABLED)
     if (xptr) {
         ctxt = xmlXPtrNewContext(xpathDocument, NULL, NULL);
         res = xmlXPtrEval(BAD_CAST str, ctxt);
     } else {
 #endif
         ctxt = xmlXPathNewContext(xpathDocument);
         ctxt->node = xmlDocGetRootElement(xpathDocument);
         if (expr)
             res = xmlXPathEvalExpression(BAD_CAST str, ctxt);
         else {
             /* res = xmlXPathEval(BAD_CAST str, ctxt); */
             xmlXPathCompExprPtr comp;
 
             comp = xmlXPathCompile(BAD_CAST str);
             if (comp != NULL) {
                 res = xmlXPathCompiledEval(comp, ctxt);
                 xmlXPathFreeCompExpr(comp);
             } else
                 res = NULL;
         }
 #if defined(LIBXML_XPTR_ENABLED)
     }
 #endif
     xmlXPathDebugDumpObject(xpathOutput, res, 0);
     xmlXPathFreeObject(res);
     xmlXPathFreeContext(ctxt);
+
+    /* Reset generic error handler. */
+    initGenericErrorDefaultFunc(NULL);
 }
 
 /**
  * xpathExprTest:
  * @filename: the file to parse
  * @result: the file with expected result
  * @err: the file with error messages
  *
  * Parse a file containing XPath standalone expressions and evaluate them
  *
@@ skipping 2157 matching lines @@
     return(ret);
 }
 
 #else /* ! LIBXML_OUTPUT_ENABLED */
 int
 main(int argc ATTRIBUTE_UNUSED, char **argv ATTRIBUTE_UNUSED) {
     fprintf(stderr, "runtest requires output to be enabled in libxml2\n");
     return(1);
 }
 #endif