// Purpose: wxFileSystemWatcher unit test
// Author: Bartosz Bekier
// Created: 2009-06-11
-// RCS-ID: $Id$
// Copyright: (c) 2009 Bartosz Bekier
///////////////////////////////////////////////////////////////////////////////
#pragma hdrstop
#endif
+#ifndef WX_PRECOMP
+ #include "wx/timer.h"
+#endif
+
#include "wx/evtloop.h"
#include "wx/filename.h"
#include "wx/filefn.h"
public:
enum { WAIT_DURATION = 3 };
- EventHandler() :
- eg(EventGenerator::Get()), m_loop(0), m_count(0), m_watcher(0)
+ EventHandler(int types = wxFSW_EVENT_ALL) :
+ eg(EventGenerator::Get()), m_loop(0), m_count(0), m_watcher(0),
+ m_eventTypes(types)
{
m_loop = new wxEventLoop();
Connect(wxEVT_IDLE, wxIdleEventHandler(EventHandler::OnIdle));
break;
case 2:
// actual test
- CPPUNIT_ASSERT(CheckResult());
+ CheckResult();
Exit();
break;
// add dir to be watched
wxFileName dir = EventGenerator::GetWatchDir();
- CPPUNIT_ASSERT(m_watcher->Add(dir, wxFSW_EVENT_ALL));
+ CPPUNIT_ASSERT(m_watcher->Add(dir, m_eventTypes));
return true;
}
// did we receive event already?
if (!tested)
{
- // well, lets wait a bit more
+ // well, let's wait a bit more
wxSleep(WAIT_DURATION);
}
tested = true;
}
- virtual bool CheckResult()
+ virtual void CheckResult()
{
CPPUNIT_ASSERT_MESSAGE( "No events received", !m_events.empty() );
const wxFileSystemWatcherEvent * const e = m_events.front();
- WX_ASSERT_EQUAL_MESSAGE
- (
- (
- "Extra events received, first is of type %x, for path=\"%s\","
- "last is of type %x, path=\"%s\"",
- e->GetChangeType(),
- e->GetPath().GetFullPath(),
- m_events.back()->GetChangeType(),
- m_events.back()->GetPath().GetFullPath()
- ),
- 1, m_events.size()
- );
-
// this is our "reference event"
const wxFileSystemWatcherEvent expected = ExpectedEvent();
CPPUNIT_ASSERT_EQUAL(expected.GetPath(), e->GetPath());
CPPUNIT_ASSERT_EQUAL(expected.GetNewPath(), e->GetNewPath());
- return true;
+ // Under MSW extra modification events are sometimes reported after a
+ // rename and we just can't get rid of them, so ignore them in this
+ // test if they do happen.
+ if ( e->GetChangeType() == wxFSW_EVENT_RENAME &&
+ m_events.size() == 2 )
+ {
+ const wxFileSystemWatcherEvent* const e2 = m_events.back();
+ if ( e2->GetChangeType() == wxFSW_EVENT_MODIFY &&
+ e2->GetPath() == e->GetNewPath() )
+ {
+ // This is a modify event for the new file, ignore it.
+ return;
+ }
+ }
+
+ WX_ASSERT_EQUAL_MESSAGE
+ (
+ (
+ "Extra events received, last one is of type %x, path=\"%s\" "
+ "(the original event was for \"%s\" (\"%s\")",
+ m_events.back()->GetChangeType(),
+ m_events.back()->GetPath().GetFullPath(),
+ e->GetPath().GetFullPath(),
+ e->GetNewPath().GetFullPath()
+ ),
+ 1, m_events.size()
+ );
+
}
virtual void GenerateEvent() = 0;
int m_count; // idle events count
wxFileSystemWatcher* m_watcher;
+ int m_eventTypes; // Which event-types to watch. Normally all of them
bool tested; // indicates, whether we have already passed the test
#include "wx/arrimpl.cpp"
CPPUNIT_TEST_SUITE( FileSystemWatcherTestCase );
CPPUNIT_TEST( TestEventCreate );
CPPUNIT_TEST( TestEventDelete );
+#if !defined(__VISUALC__) || wxCHECK_VISUALC_VERSION(7)
+ CPPUNIT_TEST( TestTrees );
+#endif
// kqueue-based implementation doesn't collapse create/delete pairs in
// renames and doesn't detect neither modifications nor access to the
CPPUNIT_TEST( TestEventModify );
// MSW implementation doesn't detect file access events currently
-#ifndef __WXMSW__
+#ifndef __WINDOWS__
CPPUNIT_TEST( TestEventAccess );
-#endif // __WXMSW__
+#endif // __WINDOWS__
#endif // !wxHAS_KQUEUE
+
+#ifdef wxHAS_INOTIFY
+ CPPUNIT_TEST( TestEventAttribute );
+ CPPUNIT_TEST( TestSingleWatchtypeEvent );
+#endif // wxHAS_INOTIFY
+
+ CPPUNIT_TEST( TestNoEventsAfterRemove );
CPPUNIT_TEST_SUITE_END();
void TestEventCreate();
void TestEventRename();
void TestEventModify();
void TestEventAccess();
+#ifdef wxHAS_INOTIFY
+ void TestEventAttribute();
+ void TestSingleWatchtypeEvent();
+#endif // wxHAS_INOTIFY
+#if !defined(__VISUALC__) || wxCHECK_VISUALC_VERSION(7)
+ void TestTrees(); // Visual C++ 6 can't build this
+#endif
+ void TestNoEventsAfterRemove();
DECLARE_NO_COPY_CLASS(FileSystemWatcherTestCase)
};
CPPUNIT_TEST_SUITE_REGISTRATION( FileSystemWatcherTestCase );
#endif
-// also include in it's own registry so that these tests can be run alone
+// also include in its own registry so that these tests can be run alone
CPPUNIT_TEST_SUITE_NAMED_REGISTRATION( FileSystemWatcherTestCase,
"FileSystemWatcherTestCase" );
EventTester tester;
tester.Run();
}
+
+#ifdef wxHAS_INOTIFY
+// ----------------------------------------------------------------------------
+// TestEventAttribute
+// ----------------------------------------------------------------------------
+void FileSystemWatcherTestCase::TestEventAttribute()
+{
+ wxLogDebug("TestEventAttribute()");
+
+ class EventTester : public EventHandler
+ {
+ public:
+ virtual void GenerateEvent()
+ {
+ CPPUNIT_ASSERT(eg.TouchFile());
+ }
+
+ virtual wxFileSystemWatcherEvent ExpectedEvent()
+ {
+ wxFileSystemWatcherEvent event(wxFSW_EVENT_ATTRIB);
+ event.SetPath(eg.m_file);
+ event.SetNewPath(eg.m_file);
+ return event;
+ }
+ };
+
+ // we need to create a file to touch
+ EventGenerator::Get().CreateFile();
+
+ EventTester tester;
+ tester.Run();
+}
+
+// ----------------------------------------------------------------------------
+// TestSingleWatchtypeEvent: Watch only wxFSW_EVENT_ACCESS
+// ----------------------------------------------------------------------------
+void FileSystemWatcherTestCase::TestSingleWatchtypeEvent()
+{
+ wxLogDebug("TestSingleWatchtypeEvent()");
+
+ class EventTester : public EventHandler
+ {
+ public:
+ // We could pass wxFSW_EVENT_CREATE or MODIFY instead, but not RENAME or
+ // DELETE as the event path fields would be wrong in CheckResult()
+ EventTester() : EventHandler(wxFSW_EVENT_ACCESS) {}
+
+ virtual void GenerateEvent()
+ {
+ // As wxFSW_EVENT_ACCESS is passed to the ctor only ReadFile() will
+ // generate an event. Without it they all will, and the test fails
+ CPPUNIT_ASSERT(eg.CreateFile());
+ CPPUNIT_ASSERT(eg.ModifyFile());
+ CPPUNIT_ASSERT(eg.ReadFile());
+ }
+
+ virtual wxFileSystemWatcherEvent ExpectedEvent()
+ {
+ wxFileSystemWatcherEvent event(wxFSW_EVENT_ACCESS);
+ event.SetPath(eg.m_file);
+ event.SetNewPath(eg.m_file);
+ return event;
+ }
+ };
+
+ EventTester tester;
+ tester.Run();
+}
+#endif // wxHAS_INOTIFY
+
+// ----------------------------------------------------------------------------
+// TestTrees
+// ----------------------------------------------------------------------------
+
+#if !defined(__VISUALC__) || wxCHECK_VISUALC_VERSION(7)
+void FileSystemWatcherTestCase::TestTrees()
+{
+ class TreeTester : public EventHandler
+ {
+ const size_t subdirs;
+ const size_t files;
+
+ public:
+ TreeTester() : subdirs(5), files(3) {}
+
+ void GrowTree(wxFileName dir
+#ifdef __UNIX__
+ , bool withSymlinks = false
+#endif
+ )
+ {
+ CPPUNIT_ASSERT(dir.Mkdir());
+ // Now add a subdir with an easy name to remember in WatchTree()
+ dir.AppendDir("child");
+ CPPUNIT_ASSERT(dir.Mkdir());
+ wxFileName child(dir); // Create a copy to which to symlink
+
+ // Create a branch of 5 numbered subdirs, each containing 3
+ // numbered files
+ for ( unsigned d = 0; d < subdirs; ++d )
+ {
+ dir.AppendDir(wxString::Format("subdir%u", d+1));
+ CPPUNIT_ASSERT(dir.Mkdir());
+
+ const wxString prefix = dir.GetPathWithSep();
+ const wxString ext[] = { ".txt", ".log", "" };
+ for ( unsigned f = 0; f < files; ++f )
+ {
+ // Just create the files.
+ wxFile(prefix + wxString::Format("file%u", f+1) + ext[f],
+ wxFile::write);
+ }
+#if defined(__UNIX__)
+ if ( withSymlinks )
+ {
+ // Create a symlink to a files, and another to 'child'
+ CPPUNIT_ASSERT_EQUAL(0,
+ symlink(wxString(prefix + "file1").c_str(),
+ wxString(prefix + "file.lnk").c_str()));
+ CPPUNIT_ASSERT_EQUAL(0,
+ symlink(child.GetFullPath().c_str(),
+ wxString(prefix + "dir.lnk").c_str()));
+ }
+#endif // __UNIX__
+ }
+ }
+
+ void RmDir(wxFileName dir)
+ {
+ CPPUNIT_ASSERT(dir.DirExists());
+
+ CPPUNIT_ASSERT(dir.Rmdir(wxPATH_RMDIR_RECURSIVE));
+ }
+
+ void WatchDir(wxFileName dir)
+ {
+ CPPUNIT_ASSERT(m_watcher);
+
+ // Store the initial count; there may already be some watches
+ const int initial = m_watcher->GetWatchedPathsCount();
+
+ m_watcher->Add(dir);
+ CPPUNIT_ASSERT_EQUAL(initial + 1,
+ m_watcher->GetWatchedPathsCount());
+ }
+
+ void RemoveSingleWatch(wxFileName dir)
+ {
+ CPPUNIT_ASSERT(m_watcher);
+
+ const int initial = m_watcher->GetWatchedPathsCount();
+
+ m_watcher->Remove(dir);
+ CPPUNIT_ASSERT_EQUAL(initial - 1,
+ m_watcher->GetWatchedPathsCount());
+ }
+
+ void WatchTree(const wxFileName& dir)
+ {
+ CPPUNIT_ASSERT(m_watcher);
+
+ size_t treeitems = 1; // the trunk
+#ifndef __WINDOWS__
+ // When there's no file mask, wxMSW sets a single watch
+ // on the trunk which is implemented recursively.
+ // wxGTK always sets an additional watch for each subdir
+ treeitems += subdirs + 1; // +1 for 'child'
+#endif // __WINDOWS__
+
+ // Store the initial count; there may already be some watches
+ const int initial = m_watcher->GetWatchedPathsCount();
+
+ GrowTree(dir);
+
+ m_watcher->AddTree(dir);
+ const int plustree = m_watcher->GetWatchedPathsCount();
+
+ CPPUNIT_ASSERT_EQUAL(initial + treeitems, plustree);
+
+ m_watcher->RemoveTree(dir);
+ CPPUNIT_ASSERT_EQUAL(initial, m_watcher->GetWatchedPathsCount());
+
+ // Now test the refcount mechanism by watching items more than once
+ wxFileName child(dir);
+ child.AppendDir("child");
+ m_watcher->AddTree(child);
+ // Check some watches were added; we don't care about the number
+ CPPUNIT_ASSERT(initial < m_watcher->GetWatchedPathsCount());
+ // Now watch the whole tree and check that the count is the same
+ // as it was the first time, despite also adding 'child' separately
+ // Except that in wxMSW this isn't true: each watch will be a
+ // single, recursive dir; so fudge the count
+ size_t fudge = 0;
+#ifdef __WINDOWS__
+ fudge = 1;
+#endif // __WINDOWS__
+ m_watcher->AddTree(dir);
+ CPPUNIT_ASSERT_EQUAL(plustree + fudge, m_watcher->GetWatchedPathsCount());
+ m_watcher->RemoveTree(child);
+ CPPUNIT_ASSERT(initial < m_watcher->GetWatchedPathsCount());
+ m_watcher->RemoveTree(dir);
+ CPPUNIT_ASSERT_EQUAL(initial, m_watcher->GetWatchedPathsCount());
+#if defined(__UNIX__)
+ // Finally, test a tree containing internal symlinks
+ RmDir(dir);
+ GrowTree(dir, true /* test symlinks */);
+
+ // Without the DontFollowLink() call AddTree() would now assert
+ // (and without the assert, it would infinitely loop)
+ wxFileName fn = dir;
+ fn.DontFollowLink();
+ CPPUNIT_ASSERT(m_watcher->AddTree(fn));
+ CPPUNIT_ASSERT(m_watcher->RemoveTree(fn));
+
+ // Regrow the tree without symlinks, ready for the next test
+ RmDir(dir);
+ GrowTree(dir, false);
+#endif // __UNIX__
+ }
+
+ void WatchTreeWithFilespec(const wxFileName& dir)
+ {
+ CPPUNIT_ASSERT(m_watcher);
+ CPPUNIT_ASSERT(dir.DirExists()); // Was built in WatchTree()
+
+ // Store the initial count; there may already be some watches
+ const int initial = m_watcher->GetWatchedPathsCount();
+
+ // When we use a filter, both wxMSW and wxGTK implementations set
+ // an additional watch for each subdir (+1 for the root dir itself
+ // and another +1 for "child").
+ const size_t treeitems = subdirs + 2;
+ m_watcher->AddTree(dir, wxFSW_EVENT_ALL, "*.txt");
+
+ const int plustree = m_watcher->GetWatchedPathsCount();
+ CPPUNIT_ASSERT_EQUAL(initial + treeitems, plustree);
+
+ // RemoveTree should try to remove only those files that were added
+ m_watcher->RemoveTree(dir);
+ CPPUNIT_ASSERT_EQUAL(initial, m_watcher->GetWatchedPathsCount());
+ }
+
+ void RemoveAllWatches()
+ {
+ CPPUNIT_ASSERT(m_watcher);
+
+ m_watcher->RemoveAll();
+ CPPUNIT_ASSERT_EQUAL(0, m_watcher->GetWatchedPathsCount());
+ }
+
+ virtual void GenerateEvent()
+ {
+ // We don't use this function for events. Just run the tests
+
+ wxFileName watchdir = EventGenerator::GetWatchDir();
+ CPPUNIT_ASSERT(watchdir.DirExists());
+
+ wxFileName treedir(watchdir);
+ treedir.AppendDir("treetrunk");
+ CPPUNIT_ASSERT(!treedir.DirExists());
+
+ wxFileName singledir(watchdir);
+ singledir.AppendDir("single");
+ CPPUNIT_ASSERT(!singledir.DirExists());
+ CPPUNIT_ASSERT(singledir.Mkdir());
+
+ WatchDir(singledir);
+ WatchTree(treedir);
+ // Now test adding and removing a tree using a filespec
+ // wxMSW uses the generic method to add matching files; which fails
+ // as it doesn't support adding files :/ So disable the test
+#ifndef __WINDOWS__
+ WatchTreeWithFilespec(treedir);
+#endif // __WINDOWS__
+
+ RemoveSingleWatch(singledir);
+ // Add it back again, ready to test RemoveAll()
+ WatchDir(singledir);
+
+ RemoveAllWatches();
+
+ // Clean up
+ RmDir(singledir);
+ RmDir(treedir);
+
+ Exit();
+ }
+
+ virtual wxFileSystemWatcherEvent ExpectedEvent()
+ {
+ CPPUNIT_FAIL("Shouldn't be called");
+
+ return wxFileSystemWatcherEvent(wxFSW_EVENT_ERROR);
+ }
+
+ virtual void CheckResult()
+ {
+ // Do nothing. We override this to prevent receiving events in
+ // ExpectedEvent()
+ }
+ };
+
+ TreeTester tester;
+ tester.Run();
+}
+#endif // !defined(__VISUALC__) || wxCHECK_VISUALC_VERSION(7)
+
+
+namespace
+{
+
+// We can't define this class locally inside TestNoEventsAfterRemove() for some
+// reason with g++ 4.0 under OS X 10.5, it results in the following mysterious
+// error:
+//
+// /var/tmp//ccTkNCkc.s:unknown:Non-global symbol:
+// __ZThn80_ZN25FileSystemWatcherTestCase23TestNoEventsAfterRemoveEvEN11EventTester6NotifyEv.eh
+// can't be a weak_definition
+//
+// So define this class outside the function instead.
+class NoEventsAfterRemoveEventTester : public EventHandler,
+ public wxTimer
+{
+public:
+ NoEventsAfterRemoveEventTester()
+ {
+ // We need to use an inactivity timer as we never get any file
+ // system events in this test, so we consider that the test is
+ // finished when this 1s timeout expires instead of, as usual,
+ // stopping after getting the file system events.
+ Start(1000, true);
+ }
+
+ virtual void GenerateEvent()
+ {
+ m_watcher->Remove(EventGenerator::GetWatchDir());
+ CPPUNIT_ASSERT(eg.CreateFile());
+ }
+
+ virtual void CheckResult()
+ {
+ CPPUNIT_ASSERT( m_events.empty() );
+ }
+
+ virtual wxFileSystemWatcherEvent ExpectedEvent()
+ {
+ CPPUNIT_FAIL( "Shouldn't be called" );
+
+ return wxFileSystemWatcherEvent(wxFSW_EVENT_ERROR);
+ }
+
+ virtual void Notify()
+ {
+ SendIdle();
+ }
+};
+
+} // anonymous namespace
+
+void FileSystemWatcherTestCase::TestNoEventsAfterRemove()
+{
+ NoEventsAfterRemoveEventTester tester;
+ tester.Run();
+}
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