########################
% Pipetool related tests
########################

+ Basic tests

= Test default test case

s = PeriodicSource("hello", 1, name="src")
d1 = Drain(name="d1")
c = ConsoleSink(name="c")
tf = TransformDrain(lambda x:"Got %r" % x)
t = TermSink(name="t", keepterm=False)
s > d1 > c
d1 > tf > t

p = PipeEngine(s)
p.graph(type="png",target="> /tmp/pipe.png")
p.start()
time.sleep(3)
p.stop()

= Test add_pipe

s = AutoSource()
p = PipeEngine(s)
p.add(Pipe())
assert len(p.active_pipes) == 2

x = p.spawn_Pipe()
assert len(p.active_pipes) == 3
assert isinstance(x, Pipe)

= Test exhausted source

s = AutoSource()
s._gen_data("hello")
s.is_exhausted = True
d1 = Drain(name="d1")
c = ConsoleSink(name="c")
s > d1 > c

p = PipeEngine(s)
p.start()
p.wait_and_stop()

= Test add_pipe on running instance

test_val = None

class TestSink(Sink):
    def push(self, msg):
        global test_val
        test_val = msg

p = PipeEngine()
p.start()

s = AutoSource()
s._gen_data("hello")
s.is_exhausted = True

d1 = Drain(name="d1")
c = TestSink(name="c")
s > d1 > c

p.add(s)
time.sleep(1)

p.wait_and_stop()
assert test_val == "hello"

= Test Operators

s = AutoSource()
p = PipeEngine(s)
assert p == p
assert not p < p
assert not p > p

a = AutoSource()
b = AutoSource()
a >> b
assert len(a.high_sinks) == 1
assert len(a.high_sources) == 0
assert len(b.high_sinks) == 0
assert len(b.high_sources) == 1
a
b

a = AutoSource()
b = AutoSource()
a << b
assert len(a.high_sinks) == 0
assert len(a.high_sources) == 1
assert len(b.high_sinks) == 1
assert len(b.high_sources) == 0
a
b

a = AutoSource()
b = AutoSource()
a == b
assert len(a.sinks) == 1
assert len(a.sources) == 1
assert len(b.sinks) == 1
assert len(b.sources) == 1

a = AutoSource()
b = AutoSource()
a//b
assert len(a.high_sinks) == 1
assert len(a.high_sources) == 1
assert len(b.high_sinks) == 1
assert len(b.high_sources) == 1

a = AutoSource()
b = AutoSource()
a^b
assert len(b.trigger_sources) == 1
assert len(a.trigger_sinks) == 1

= Test doc

s = AutoSource()
p = PipeEngine(s)
p.list_pipes()
p.list_pipes_detailed()

= Test RawConsoleSink with CLIFeeder

p = PipeEngine()

s = CLIFeeder()
s.send("hello")
s.is_exhausted = True

r, w = os.pipe()

d1 = Drain(name="d1")
c = RawConsoleSink(name="c")
c._write_pipe = w
s > d1 > c

p.add(s)
p.start()

assert os.read(r, 20) == "hello\n"
p.wait_and_stop()

= Test QueueSink with CLIFeeder

p = PipeEngine()

s = CLIFeeder()
s.send("hello")
s.is_exhausted = True

d1 = Drain(name="d1")
c = QueueSink(name="c")
s > d1 > c

p.add(s)
p.start()

p.wait_and_stop()
assert c.recv() == "hello"

= Test UpDrain

test_val = None

class TestSink(Sink):
    def high_push(self, msg):
        global test_val
        test_val = msg

p = PipeEngine()

s = CLIFeeder()
s.send("hello")
s.is_exhausted = True

d1 = UpDrain(name="d1")
c = TestSink(name="c")
s > d1
d1 >> c

p.add(s)
p.start()

p.wait_and_stop()
assert test_val == "hello"

= Test DownDrain

test_val = None

class TestSink(Sink):
    def push(self, msg):
        global test_val
        test_val = msg

p = PipeEngine()

s = CLIHighFeeder()
s.send("hello")
s.is_exhausted = True

d1 = DownDrain(name="d1")
c = TestSink(name="c")
s >> d1
d1 > c

p.add(s)
p.start()

p.wait_and_stop()
assert test_val == "hello"