1 files changed, 128 insertions, 0 deletions
diff --git a/tests/py37_asyncio.py b/tests/py37_asyncio.py
new file mode 100644
index 0000000..8bf61e7
--- /dev/null
+++ b/tests/py37_asyncio.py
@@ -0,0 +1,128 @@
+import asyncio
+from functools import partial
+from sys import platform
+from time import time
+
+from tqdm.asyncio import tarange, tqdm_asyncio
+
+from .tests_tqdm import StringIO, closing, mark
+
+tqdm = partial(tqdm_asyncio, miniters=0, mininterval=0)
+trange = partial(tarange, miniters=0, mininterval=0)
+as_completed = partial(tqdm_asyncio.as_completed, miniters=0, mininterval=0)
+gather = partial(tqdm_asyncio.gather, miniters=0, mininterval=0)
+
+
+def count(start=0, step=1):
+    i = start
+    while True:
+        new_start = yield i
+        if new_start is None:
+            i += step
+        else:
+            i = new_start
+
+
+async def acount(*args, **kwargs):
+    for i in count(*args, **kwargs):
+        yield i
+
+
+@mark.asyncio
+async def test_break():
+    """Test asyncio break"""
+    pbar = tqdm(count())
+    async for _ in pbar:
+        break
+    pbar.close()
+
+
+@mark.asyncio
+async def test_generators(capsys):
+    """Test asyncio generators"""
+    with tqdm(count(), desc="counter") as pbar:
+        async for i in pbar:
+            if i >= 8:
+                break
+    _, err = capsys.readouterr()
+    assert '9it' in err
+
+    with tqdm(acount(), desc="async_counter") as pbar:
+        async for i in pbar:
+            if i >= 8:
+                break
+    _, err = capsys.readouterr()
+    assert '9it' in err
+
+
+@mark.asyncio
+async def test_range():
+    """Test asyncio range"""
+    with closing(StringIO()) as our_file:
+        async for _ in tqdm(range(9), desc="range", file=our_file):
+            pass
+        assert '9/9' in our_file.getvalue()
+        our_file.seek(0)
+        our_file.truncate()
+
+        async for _ in trange(9, desc="trange", file=our_file):
+            pass
+        assert '9/9' in our_file.getvalue()
+
+
+@mark.asyncio
+async def test_nested():
+    """Test asyncio nested"""
+    with closing(StringIO()) as our_file:
+        async for _ in tqdm(trange(9, desc="inner", file=our_file),
+                            desc="outer", file=our_file):
+            pass
+        assert 'inner: 100%' in our_file.getvalue()
+        assert 'outer: 100%' in our_file.getvalue()
+
+
+@mark.asyncio
+async def test_coroutines():
+    """Test asyncio coroutine.send"""
+    with closing(StringIO()) as our_file:
+        with tqdm(count(), file=our_file) as pbar:
+            async for i in pbar:
+                if i == 9:
+                    pbar.send(-10)
+                elif i < 0:
+                    assert i == -9
+                    break
+        assert '10it' in our_file.getvalue()
+
+
+@mark.slow
+@mark.asyncio
+@mark.parametrize("tol", [0.2 if platform.startswith("darwin") else 0.1])
+async def test_as_completed(capsys, tol):
+    """Test asyncio as_completed"""
+    for retry in range(3):
+        t = time()
+        skew = time() - t
+        for i in as_completed([asyncio.sleep(0.01 * i) for i in range(30, 0, -1)]):
+            await i
+        t = time() - t - 2 * skew
+        try:
+            assert 0.3 * (1 - tol) < t < 0.3 * (1 + tol), t
+            _, err = capsys.readouterr()
+            assert '30/30' in err
+        except AssertionError:
+            if retry == 2:
+                raise
+
+
+async def double(i):
+    return i * 2
+
+
+@mark.asyncio
+async def test_gather(capsys):
+    """Test asyncio gather"""
+    res = await gather(*map(double, range(30)))
+    _, err = capsys.readouterr()
+    assert '30/30' in err
+    assert res == list(range(0, 30 * 2, 2))