diff --git a/tests/0-dirwatcher.d b/tests/0-dirwatcher.d
index 482a9d4..cc921b0 100644
--- a/tests/0-dirwatcher.d
+++ b/tests/0-dirwatcher.d
@@ -7,7 +7,7 @@ module test;
 import eventcore.core;
 import std.stdio : File, writefln;
 import std.file : exists, remove;
-import core.time : msecs;
+import core.time : Duration, msecs;
 
 bool s_done;
 int s_cnt = 0;
@@ -45,12 +45,12 @@ void main()
 	auto fil = File(testFilename, "wt");
 
 	auto tm = eventDriver.timers.create();
-	eventDriver.timers.set(tm, 100.msecs);
+	eventDriver.timers.set(tm, 100.msecs, 0.msecs);
 	eventDriver.timers.wait(tm, (tm) {
 		scope (failure) assert(false);
 		fil.write("test");
 		fil.close();
-		eventDriver.timers.set(tm, 100.msecs);
+		eventDriver.timers.set(tm, 100.msecs, 0.msecs);
 		eventDriver.timers.wait(tm, (tm) {
 			scope (failure) assert(false);
 			remove(testFilename);
@@ -58,7 +58,7 @@ void main()
 	});
 
 	ExitReason er;
-	do er = eventDriver.core.processEvents();
+	do er = eventDriver.core.processEvents(Duration.max);
 	while (er == ExitReason.idle);
 	//assert(er == ExitReason.outOfWaiters); // FIXME: see above
 	assert(s_done);
diff --git a/tests/0-dns.d b/tests/0-dns.d
index b05d05c..7153aa3 100644
--- a/tests/0-dns.d
+++ b/tests/0-dns.d
@@ -6,6 +6,7 @@ module test;
 
 import eventcore.core;
 import std.stdio : writefln;
+import core.time : Duration;
 
 bool s_done;
 
@@ -23,7 +24,7 @@ void main()
 	});
 
 	ExitReason er;
-	do er = eventDriver.core.processEvents();
+	do er = eventDriver.core.processEvents(Duration.max);
 	while (er == ExitReason.idle);
 	//assert(er == ExitReason.outOfWaiters); // FIXME: see above
 	assert(s_done);
diff --git a/tests/0-signal.d b/tests/0-signal.d
index 79379ae..feb04c2 100644
--- a/tests/0-signal.d
+++ b/tests/0-signal.d
@@ -8,7 +8,7 @@ import eventcore.core;
 import std.stdio : writefln;
 import core.stdc.signal;
 import core.sys.posix.signal : SIGRTMIN;
-import core.time : msecs;
+import core.time : Duration, msecs;
 
 bool s_done;
 
@@ -23,13 +23,13 @@ void main()
 	});
 
 	auto tm = eventDriver.timers.create();
-	eventDriver.timers.set(tm, 500.msecs);
+	eventDriver.timers.set(tm, 500.msecs, 0.msecs);
 	eventDriver.timers.wait(tm, (tm) {
 		() @trusted { raise(SIGRTMIN+1); } ();
 	});
 
 	ExitReason er;
-	do er = eventDriver.core.processEvents();
+	do er = eventDriver.core.processEvents(Duration.max);
 	while (er == ExitReason.idle);
 	//assert(er == ExitReason.outOfWaiters); // FIXME: see above
 	assert(s_done);
diff --git a/tests/0-udp.d b/tests/0-udp.d
index be05b29..a42f760 100644
--- a/tests/0-udp.d
+++ b/tests/0-udp.d
@@ -7,6 +7,7 @@ module test;
 import eventcore.core;
 import eventcore.socket;
 import std.socket : InternetAddress;
+import core.time : Duration;
 
 DatagramSocket s_baseSocket;
 DatagramSocket s_freeSocket;
@@ -63,7 +64,7 @@ void main()
 	})(pack1, IOMode.immediate);
 
 	ExitReason er;
-	do er = eventDriver.core.processEvents();
+	do er = eventDriver.core.processEvents(Duration.max);
 	while (er == ExitReason.idle);
 	//assert(er == ExitReason.outOfWaiters); // FIXME: see above
 	assert(s_done);
diff --git a/tests/0-usds.d b/tests/0-usds.d
index 455a7b6..0646471 100644
--- a/tests/0-usds.d
+++ b/tests/0-usds.d
@@ -18,6 +18,7 @@ import eventcore.core;
 import eventcore.socket;
 import std.file : exists, remove;
 import std.socket : UnixAddress;
+import core.time : Duration;
 
 ubyte[256] s_rbuf;
 bool s_done;
@@ -75,7 +76,7 @@ void testDgram()
 
 
 	ExitReason er;
-	do er = eventDriver.core.processEvents();
+	do er = eventDriver.core.processEvents(Duration.max);
 	while (er == ExitReason.idle);
 	//assert(er == ExitReason.outOfWaiters); // FIXME: see above
 	assert(s_done);
@@ -130,7 +131,7 @@ void testStream()
 	})(baddr);
 
 	ExitReason er;
-	do er = eventDriver.core.processEvents();
+	do er = eventDriver.core.processEvents(Duration.max);
 	while (er == ExitReason.idle);
 	//assert(er == ExitReason.outOfWaiters); // FIXME: see above
 	assert(s_done);