diff --git a/tests/fswatcher/fswatchertest.cpp b/tests/fswatcher/fswatchertest.cpp
index 19aea462fb..eb16020d4a 100644
--- a/tests/fswatcher/fswatchertest.cpp
+++ b/tests/fswatcher/fswatchertest.cpp
@@ -23,6 +23,7 @@
 #include "wx/filename.h"
 #include "wx/filefn.h"
 #include "wx/fswatcher.h"
+#include "wx/log.h"
 #include "wx/scopedptr.h"
 #include "wx/stdpaths.h"
 #include "wx/vector.h"
@@ -33,6 +34,27 @@
 // local functions
 // ----------------------------------------------------------------------------
 
+#if wxUSE_LOG
+// Logging is disabled by default when running the tests, but sometimes it can
+// be helpful to see the errors in case of unexpected failure, so this class
+// re-enables logs in its scope.
+//
+// It's a counterpart to wxLogNull.
+class LogEnabler
+{
+public:
+    LogEnabler() : m_wasEnabled(wxLog::EnableLogging(true)) { }
+    ~LogEnabler() { wxLog::EnableLogging(m_wasEnabled); }
+
+private:
+    const bool m_wasEnabled;
+
+    wxDECLARE_NO_COPY_CLASS(LogEnabler);
+};
+#else // !wxUSE_LOG
+class LogEnabler { };
+#endif // wxUSE_LOG/!wxUSE_LOG
+
 // class generating file system events
 class EventGenerator
 {
@@ -128,32 +150,36 @@ public:
     // static helpers
     static const wxFileName& GetWatchDir()
     {
-        static wxFileName dir;
-
-        if (dir.DirExists())
-            return dir;
+        if (ms_watchDir.DirExists())
+            return ms_watchDir;
 
         wxString tmp = wxStandardPaths::Get().GetTempDir();
-        dir.AssignDir(tmp);
+        ms_watchDir.AssignDir(tmp);
 
         // XXX look for more unique name? there is no function to generate
         // unique filename, the file always get created...
-        dir.AppendDir("fswatcher_test");
-        REQUIRE(!dir.DirExists());
-        REQUIRE(dir.Mkdir());
+        ms_watchDir.AppendDir("fswatcher_test");
+        REQUIRE(!ms_watchDir.DirExists());
 
-        return dir;
+        LogEnabler enableLogs;
+        REQUIRE(ms_watchDir.Mkdir());
+
+        REQUIRE(ms_watchDir.DirExists());
+
+        return ms_watchDir;
     }
 
     static void RemoveWatchDir()
     {
-        wxFileName dir = GetWatchDir();
-        REQUIRE(dir.DirExists());
+        REQUIRE(ms_watchDir.DirExists());
 
         // just to be really sure we know what we remove
-        REQUIRE( dir.GetDirs().Last() == "fswatcher_test" );
+        REQUIRE( ms_watchDir.GetDirs().Last() == "fswatcher_test" );
 
-        CHECK( dir.Rmdir(wxPATH_RMDIR_RECURSIVE) );
+        LogEnabler enableLogs;
+        CHECK( ms_watchDir.Rmdir(wxPATH_RMDIR_RECURSIVE) );
+
+        ms_watchDir = wxFileName();
     }
 
     static wxFileName RandomName(const wxFileName& base, int length = 10)
@@ -178,9 +204,13 @@ public:
 
 protected:
     static EventGenerator* ms_instance;
+
+private:
+    static wxFileName ms_watchDir;
 };
 
 EventGenerator* EventGenerator::ms_instance = 0;
+wxFileName EventGenerator::ms_watchDir;
 
 
 // Abstract base class from which concrete event tests inherit.
@@ -799,7 +829,6 @@ TEST_CASE_METHOD(FileSystemWatcherTestCase,
             // We don't use this function for events. Just run the tests
 
             wxFileName watchdir = EventGenerator::GetWatchDir();
-            REQUIRE(watchdir.DirExists());
 
             wxFileName treedir(watchdir);
             treedir.AppendDir("treetrunk");
diff --git a/tests/regex/wxregextest.cpp b/tests/regex/wxregextest.cpp
index ce5721d4b0..e1d58d1f65 100644
--- a/tests/regex/wxregextest.cpp
+++ b/tests/regex/wxregextest.cpp
@@ -141,7 +141,7 @@ CheckReplace(const char* pattern,
     wxRegEx re(pattern);
 
     wxString text(original);
-    CHECK( re.Replace(&text, replacement) == numMatches );
+    CHECK( re.Replace(&text, replacement) == static_cast<int>(numMatches) );
     CHECK( text == expected );
 }