Fix test setup, minor fixes

test/test_backend.rb

@@ -13,6 +13,7 @@ def setup
   def teardown
     @backend.finalize
     Thread.current.backend = @prev_backend
+    super
   end
 
   def test_sleep
@@ -443,6 +444,7 @@ def setup
   def teardown
     @backend.finalize
     Thread.current.backend = @prev_backend
+    super
   end
 
   def test_simple_write_chain

test/test_fiber.rb

@@ -1157,9 +1157,11 @@ def test_select_with_raised_error
   end
 
   def test_select_with_interruption
-    f1 = spin { sleep 0.01; :foo }
+    f1 = spin { sleep 0.1; :foo }
     f2 = spin { sleep 1; :bar }
-    spin { snooze; f2.interrupt(:baz) }
+    snooze
+    f2.interrupt(:baz)
+
     result = Fiber.select(f1, f2)
     assert_equal [f2, :baz], result
   end

test/test_global_api.rb

@@ -144,24 +144,24 @@ def test_nested_move_on_after
     skip unless IS_LINUX
 
     t0 = monotonic_clock
-    o = move_on_after(0.01, with_value: 1) do
-      move_on_after(0.03, with_value: 2) do
+    o = move_on_after(0.1, with_value: 1) do
+      move_on_after(0.3, with_value: 2) do
         sleep 1
       end
     end
     t1 = monotonic_clock
     assert_equal 1, o
-    assert_in_range 0.008..0.040, t1 - t0 if IS_LINUX
+    assert_in_range 0.08..0.40, t1 - t0 if IS_LINUX
 
     t0 = monotonic_clock
-    o = move_on_after(0.05, with_value: 1) do
-      move_on_after(0.01, with_value: 2) do
+    o = move_on_after(0.5, with_value: 1) do
+      move_on_after(0.1, with_value: 2) do
         sleep 1
       end
     end
     t1 = monotonic_clock
     assert_equal 2, o
-    assert_in_range 0.008..0.035, t1 - t0 if IS_LINUX
+    assert_in_range 0.08..0.35, t1 - t0 if IS_LINUX
   end
 end
 
@@ -256,7 +256,7 @@ def test_cancel_after_with_lots_of_resets
       end
     end
     t1 = monotonic_clock
-    assert_in_range 0.01..0.2, t1 - t0 if IS_LINUX
+    assert_in_range 0.01..0.3, t1 - t0 if IS_LINUX
   end
 end
 

test/test_monitor.rb

@@ -8,6 +8,7 @@ class TestMonitor < MiniTest::Test
   Queue = Polyphony::Queue
 
   def setup
+    super
     @monitor = Polyphony::Monitor.new
   end
 
@@ -21,25 +22,25 @@ def test_enter_in_different_fibers
   def test_enter
     ary = []
     queue = Thread::Queue.new
-    th = Thread.new {
+    f1 = spin {
       queue.pop
       @monitor.enter
       for i in 6 .. 10
         ary.push(i)
-        Thread.pass
+        snooze
       end
       @monitor.exit
     }
-    th2 = Thread.new {
+    f2 = spin {
       @monitor.enter
       queue.enq(nil)
       for i in 1 .. 5
         ary.push(i)
-        Thread.pass
+        snooze
       end
       @monitor.exit
     }
-    assert_join_threads([th, th2])
+    Fiber.await(f1, f2)
     assert_equal((1..10).to_a, ary)
   end
 
@@ -271,16 +272,15 @@ def test_timedwait
         cond.signal
       end
     end
-    th2 = Thread.new do
-      @monitor.synchronize do
-        queue2.enq(nil)
-        assert_equal("foo", b)
-        result2 = cond.wait(0.1)
-        assert_equal(true, result2)
-        assert_equal("bar", b)
-      end
+    result2 = nil
+    @monitor.synchronize do
+      queue2.enq(nil)
+      assert_equal("foo", b)
+      result2 = cond.wait(0.1)
+      assert_equal(true, result2)
+      assert_equal("bar", b)
     end
-    assert_join_threads([th, th2])
+    th.join
 
     c = "foo"
     queue3 = Thread::Queue.new

test/test_thread.rb

@@ -60,7 +60,7 @@ def test_thread_join_with_timeout
   def test_thread_await_alias_method
     buffer = []
     spin { (1..3).each { |i| snooze; buffer << i } }
-    t = Thread.new { sleep 0.01; buffer << 4; :foo }
+    t = Thread.new { sleep 0.1; buffer << 4; :foo }
     r = t.await
     t = nil
 

test/test_timer.rb

@@ -4,11 +4,13 @@
 
 class TimerMoveOnAfterTest < MiniTest::Test
   def setup
+    super
     @timer = Polyphony::Timer.new(resolution: 0.01)
   end
 
   def teardown
     @timer.stop
+    super
   end
 
   def test_timer_move_on_after
@@ -56,11 +58,13 @@ def test_timer_move_on_after_with_reset
 
 class TimerCancelAfterTest < MiniTest::Test
   def setup
+    super
     @timer = Polyphony::Timer.new(resolution: 0.01)
   end
 
   def teardown
     @timer.stop
+    super
   end
 
   def test_timer_cancel_after
@@ -134,12 +138,14 @@ def test_timer_cancel_after_with_custom_exception
 
 class TimerMiscTest < MiniTest::Test
   def setup
+    super
     @timer = Polyphony::Timer.new(resolution: 0.001)
     sleep 0
   end
 
   def teardown
     @timer.stop
+    super
   end
 
   def test_timer_after