Add test of pbd/xml++.h API performance with three file sizes
Generate, write and then read three Session like XML files to test the performance of changes made to pbd/xml++.h API
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@ -2,7 +2,9 @@
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#include <glib.h>
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#include "pbd/gstdio_compat.h"
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#include "pbd/xml++.h"
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#include <stdint.h>
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#include <unistd.h>
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#include <stdlib.h>
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@ -10,6 +12,8 @@
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#include <fcntl.h>
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#endif
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#include <sstream>
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#include <glibmm/miscutils.h>
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#include <glibmm/fileutils.h>
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#include <glibmm/convert.h>
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@ -17,6 +21,7 @@
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#include <libxml/xpath.h>
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#include "pbd/file_utils.h"
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#include "pbd/timing.h"
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#include "test_common.h"
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@ -77,3 +82,225 @@ XMLTest::testXMLFilenameEncoding ()
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CPPUNIT_ASSERT (write_xml (output_path));
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}
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}
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static const char * const root_node_name = "Session";
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static const char * const child_node_name = "Child";
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static const char * const grandchild_node_name = "GrandChild";
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static const char * const great_grandchild_node_name = "GreatGrandChild";
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std::vector<std::pair<std::string, std::string> >
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get_test_properties ()
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{
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std::vector<std::pair<std::string, std::string> > props;
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props.push_back (std::make_pair ("id", "1234567890"));
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props.push_back (std::make_pair ("name", "Awesome Name"));
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props.push_back (std::make_pair ("type", "Human"));
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props.push_back (std::make_pair ("flags", "MustExist,IsGodLike,HasFabulousHair"));
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props.push_back (std::make_pair ("muted", "no"));
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props.push_back (std::make_pair ("opaque", "yes"));
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props.push_back (std::make_pair ("locked", "false"));
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props.push_back (std::make_pair ("automatic", "true"));
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props.push_back (std::make_pair ("whole-file", "yes"));
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props.push_back (std::make_pair ("external", "false"));
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props.push_back (std::make_pair ("hidden", "no"));
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props.push_back (std::make_pair ("start", "123456789098"));
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props.push_back (std::make_pair ("length", "123456789"));
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props.push_back (std::make_pair ("stretch", "1"));
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props.push_back (std::make_pair ("shift", "1"));
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props.push_back (std::make_pair ("master-source-0", "12345"));
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props.push_back (std::make_pair ("master-source-1", "54321"));
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props.push_back (std::make_pair ("source-0", "123"));
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props.push_back (std::make_pair ("source-1", "321"));
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props.push_back (std::make_pair ("default-fade-in", "yes"));
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props.push_back (std::make_pair ("default-fade-out", "no"));
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props.push_back (std::make_pair ("fade-in-active", "no"));
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props.push_back (std::make_pair ("fade-out-active", "yes"));
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props.push_back (std::make_pair ("channels", "2"));
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props.push_back (std::make_pair ("beat", "0"));
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props.push_back (std::make_pair ("pulse", "1.3333333"));
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props.push_back (std::make_pair ("sync-position", "4321"));
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props.push_back (std::make_pair ("ancestral-start", "987654321"));
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props.push_back (std::make_pair ("ancestral-length", "12345678"));
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return props;
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}
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static const std::vector<std::pair<std::string, std::string> > properties = get_test_properties ();
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static
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std::string
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get_event_content (uint32_t lines)
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{
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stringstream sstr;
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sstr.precision (17);
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for (uint32_t i = 0; i < lines; ++i) {
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sstr << 0.12345678901234567;
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sstr << ' ';
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sstr << -0.9876543210987654;
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sstr << '\n';
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}
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return sstr.str();
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}
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struct NodeOptions
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{
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NodeOptions (const std::string& p_node_name, uint32_t p_node_count,
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uint32_t p_node_property_count, const std::string& p_node_content = std::string())
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: node_name (p_node_name)
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, node_count (p_node_count)
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, node_property_count (p_node_property_count)
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, node_content (p_node_content)
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{
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}
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std::string node_name;
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uint32_t node_count;
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uint32_t node_property_count;
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std::string node_content;
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};
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bool
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create_child_nodes (XMLNode& parent_node, std::vector<NodeOptions>::iterator begin,
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std::vector<NodeOptions>::iterator end)
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{
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if (begin == end) return true;
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NodeOptions options = *begin;
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std::vector<NodeOptions>::iterator child_node_iter = ++begin;
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for (uint32_t node_count = 0; node_count < options.node_count; ++node_count) {
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XMLNode* new_node = new XMLNode (options.node_name);
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if (!new_node) {
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return false;
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}
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for (uint32_t prop_count = 0; prop_count < options.node_property_count; ++prop_count) {
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new_node->add_property (properties[prop_count].first.c_str (), properties[prop_count].second);
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}
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if (!options.node_content.empty()) {
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XMLNode* content_node = new XMLNode ("");
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if (!content_node) {
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return false;
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}
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content_node->set_content (options.node_content);
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new_node->add_child_nocopy (*content_node);
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}
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create_child_nodes (*new_node, child_node_iter, end);
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// Terrible API "design"
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parent_node.add_child_nocopy (*new_node);
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}
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return true;
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}
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bool
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create_xml_doc (XMLTree& xml_doc, std::vector<NodeOptions>& options)
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{
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XMLNode* root = new XMLNode (root_node_name);
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if (!root) return false;
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xml_doc.set_root (root);
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return create_child_nodes (*xml_doc.root(), options.begin(), options.end());
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}
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static const uint32_t test_iterations = 10;
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void
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test_xml_document (const std::string& test_name,
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std::vector<NodeOptions>& node_options)
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{
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const string test_output_dir = test_output_directory (test_name);
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const std::string output_file_basename = Glib::build_filename (test_output_dir, test_name);
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TimingData create_timing_data, write_timing_data, read_timing_data;
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for (uint32_t iter = 0; iter < test_iterations; ++iter) {
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char buf[16];
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snprintf (buf, sizeof(buf), "%d", iter);
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const std::string output_file_path = output_file_basename + buf + ".xml";
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create_timing_data.start_timing ();
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XMLTree test_xml;
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CPPUNIT_ASSERT (create_xml_doc (test_xml, node_options));
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create_timing_data.add_elapsed ();
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write_timing_data.start_timing ();
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test_xml.write (output_file_path);
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write_timing_data.add_elapsed ();
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read_timing_data.start_timing ();
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PBD::Timing read_timing;
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XMLTree read_doc (output_file_path);
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read_timing_data.add_elapsed ();
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// check that what we have read is identical to what was written
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CPPUNIT_ASSERT (*read_doc.root() == *test_xml.root());
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// These files are too big to keep around
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CPPUNIT_ASSERT (g_remove (output_file_path.c_str ()) == 0);
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}
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std::cerr << std::endl;
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std::cerr << " Create : " << create_timing_data.summary ();
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std::cerr << " Write : " << write_timing_data.summary ();
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std::cerr << " Read : " << read_timing_data.summary ();
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}
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void
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XMLTest::testPerfSmallXMLDocument ()
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{
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std::vector<NodeOptions> node_options;
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// A config like file with nodes with properties with name/value pairs
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node_options.push_back (NodeOptions (child_node_name, 256, 2));
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test_xml_document ("testPerfSmallXMLDocument", node_options);
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}
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void
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XMLTest::testPerfMediumXMLDocument ()
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{
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std::vector<NodeOptions> node_options;
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// A normal Session like size file
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node_options.push_back (NodeOptions (child_node_name, 32, 2));
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node_options.push_back (NodeOptions (grandchild_node_name, 32, 16, get_event_content (16)));
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node_options.push_back (NodeOptions (great_grandchild_node_name, 8, 8));
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test_xml_document ("testPerfMediumXMLDocument", node_options);
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}
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void
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XMLTest::testPerfLargeXMLDocument ()
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{
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std::vector<NodeOptions> node_options;
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// A large Session like size file
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node_options.push_back (NodeOptions (child_node_name, 32, 2));
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node_options.push_back (NodeOptions (grandchild_node_name, 128, 16, get_event_content (32)));
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node_options.push_back (NodeOptions (great_grandchild_node_name, 16, 8));
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test_xml_document ("testPerfLargeXMLDocument", node_options);
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}
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@ -5,8 +5,14 @@ class XMLTest : public CppUnit::TestFixture
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{
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CPPUNIT_TEST_SUITE (XMLTest);
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CPPUNIT_TEST (testXMLFilenameEncoding);
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CPPUNIT_TEST (testPerfSmallXMLDocument);
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CPPUNIT_TEST (testPerfMediumXMLDocument);
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CPPUNIT_TEST (testPerfLargeXMLDocument);
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CPPUNIT_TEST_SUITE_END ();
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public:
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void testXMLFilenameEncoding ();
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void testPerfSmallXMLDocument ();
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void testPerfMediumXMLDocument ();
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void testPerfLargeXMLDocument ();
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};
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