tests: Rename uasyncio to asyncio.

This work was funded through GitHub Sponsors.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>

1 files changed, 111 insertions, 0 deletions

diff --git a/tests/extmod/asyncio_gather.py b/tests/extmod/asyncio_gather.py
new file mode 100644
index 0000000000..78a40ba3aa
--- /dev/null
+++ b/tests/extmod/asyncio_gather.py
@@ -0,0 +1,111 @@
+# test asyncio.gather() function
+
+try:
+    import asyncio
+except ImportError:
+    print("SKIP")
+    raise SystemExit
+
+
+async def factorial(name, number):
+    f = 1
+    for i in range(2, number + 1):
+        print("Task {}: Compute factorial({})...".format(name, i))
+        await asyncio.sleep(0.01)
+        f *= i
+    print("Task {}: factorial({}) = {}".format(name, number, f))
+    return f
+
+
+async def task(id, t=0.1):
+    print("start", id)
+    await asyncio.sleep(t)
+    print("end", id)
+    return id
+
+
+async def task_loop(id):
+    print("task_loop start", id)
+    while True:
+        await asyncio.sleep(0.1)
+        print("task_loop loop", id)
+
+
+async def task_raise(id, t=0.1):
+    print("task_raise start", id)
+    await asyncio.sleep(t)
+    print("task_raise raise", id)
+    raise ValueError(id)
+
+
+async def gather_task(t0, t1):
+    print("gather_task")
+    await asyncio.gather(t0, t1)
+    print("gather_task2")
+
+
+async def main():
+    # Simple gather with return values
+    print(await asyncio.gather(factorial("A", 2), factorial("B", 3), factorial("C", 4)))
+
+    print("====")
+
+    # Gather with no awaitables
+    print(await asyncio.gather())
+
+    print("====")
+
+    # Test return_exceptions, where one task is cancelled and the other finishes normally
+    tasks = [asyncio.create_task(task(1)), asyncio.create_task(task(2))]
+    tasks[0].cancel()
+    print(await asyncio.gather(*tasks, return_exceptions=True))
+
+    print("====")
+
+    # Test return_exceptions, where one task raises an exception and the other finishes normally.
+    tasks = [asyncio.create_task(task(1)), asyncio.create_task(task_raise(2))]
+    print(await asyncio.gather(*tasks, return_exceptions=True))
+
+    print("====")
+
+    # Test case where one task raises an exception and other task keeps running.
+    tasks = [asyncio.create_task(task_loop(1)), asyncio.create_task(task_raise(2))]
+    try:
+        await asyncio.gather(*tasks)
+    except ValueError as er:
+        print(repr(er))
+    print(tasks[0].done(), tasks[1].done())
+    for t in tasks:
+        t.cancel()
+    await asyncio.sleep(0.2)
+
+    print("====")
+
+    # Test case where both tasks raise an exception.
+    # Use t=0 so they raise one after the other, between the gather starting and finishing.
+    tasks = [asyncio.create_task(task_raise(1, t=0)), asyncio.create_task(task_raise(2, t=0))]
+    try:
+        await asyncio.gather(*tasks)
+    except ValueError as er:
+        print(repr(er))
+    print(tasks[0].done(), tasks[1].done())
+
+    print("====")
+
+    # Cancel a multi gather.
+    t = asyncio.create_task(gather_task(task(1), task(2)))
+    await asyncio.sleep(0.05)
+    t.cancel()
+    await asyncio.sleep(0.2)
+
+    # Test edge cases where the gather is cancelled just as tasks are created and ending.
+    for i in range(1, 4):
+        print("====")
+        t = asyncio.create_task(gather_task(task(1, t=0), task(2, t=0)))
+        for _ in range(i):
+            await asyncio.sleep(0)
+        t.cancel()
+        await asyncio.sleep(0.2)
+
+
+asyncio.run(main())