5 files changed, 100 insertions, 0 deletions
diff --git a/tests/ports/webassembly/asyncio_create_task.mjs b/tests/ports/webassembly/asyncio_create_task.mjs
new file mode 100644
index 000000000..e388ade4f
--- /dev/null
+++ b/tests/ports/webassembly/asyncio_create_task.mjs
@@ -0,0 +1,44 @@
+// Test asyncio.create_task(), and tasks waiting on a Promise.
+
+const mp = await (await import(process.argv[2])).loadMicroPython();
+
+globalThis.p0 = new Promise((resolve, reject) => {
+    resolve(123);
+});
+
+globalThis.p1 = new Promise((resolve, reject) => {
+    setTimeout(() => {
+        console.log("setTimeout resolved");
+        resolve(456);
+    }, 200);
+});
+
+mp.runPython(`
+import js
+import asyncio
+
+async def task(id, promise):
+    print("task start", id)
+    print("task await", id, await promise)
+    print("task await", id, await promise)
+    print("task end", id)
+
+print("start")
+t1 = asyncio.create_task(task(1, js.p0))
+t2 = asyncio.create_task(task(2, js.p1))
+print("t1", t1.done(), t2.done())
+print("end")
+`);
+
+// Wait for p1 to fulfill so t2 can continue.
+await globalThis.p1;
+
+// Wait a little longer so t2 can complete.
+await new Promise((resolve, reject) => {
+    setTimeout(resolve, 10);
+});
+
+mp.runPython(`
+print("restart")
+print("t1", t1.done(), t2.done())
+`);
diff --git a/tests/ports/webassembly/asyncio_create_task.mjs.exp b/tests/ports/webassembly/asyncio_create_task.mjs.exp
new file mode 100644
index 000000000..c1958bba5
--- /dev/null
+++ b/tests/ports/webassembly/asyncio_create_task.mjs.exp
@@ -0,0 +1,14 @@
+start
+t1 False False
+end
+task start 1
+task start 2
+task await 1 123
+task await 1 123
+task end 1
+setTimeout resolved
+task await 2 456
+task await 2 456
+task end 2
+restart
+t1 True True
diff --git a/tests/ports/webassembly/asyncio_sleep.mjs b/tests/ports/webassembly/asyncio_sleep.mjs
new file mode 100644
index 000000000..74d22ee1f
--- /dev/null
+++ b/tests/ports/webassembly/asyncio_sleep.mjs
@@ -0,0 +1,25 @@
+// Test asyncio.sleep(), both at the top level and within a task.
+
+const mp = await (await import(process.argv[2])).loadMicroPython();
+
+await mp.runPythonAsync(`
+import time
+import asyncio
+
+print("main start")
+t0 = time.time()
+await asyncio.sleep(0.25)
+dt = time.time() - t0
+print(0.2 <= dt <= 0.3)
+
+async def task():
+    print("task start")
+    t0 = time.time()
+    await asyncio.sleep(0.25)
+    dt = time.time() - t0
+    print(0.2 <= dt <= 0.3)
+    print("task end")
+
+asyncio.create_task(task())
+print("main end")
+`);
diff --git a/tests/ports/webassembly/asyncio_sleep.mjs.exp b/tests/ports/webassembly/asyncio_sleep.mjs.exp
new file mode 100644
index 000000000..619ba175f
--- /dev/null
+++ b/tests/ports/webassembly/asyncio_sleep.mjs.exp
@@ -0,0 +1,6 @@
+main start
+True
+main end
+task start
+True
+task end
diff --git a/tests/run-tests.py b/tests/run-tests.py
index 4f55cdd39..8acdcd2b3 100755
--- a/tests/run-tests.py
+++ b/tests/run-tests.py
@@ -681,6 +681,17 @@ def run_tests(pyb, tests, args, result_dir, num_threads=1):
         elif args.target == "webassembly":
             skip_tests.add("basics/string_format_modulo.py")  # can't print nulls to stdout
             skip_tests.add("basics/string_strip.py")  # can't print nulls to stdout
+            skip_tests.add("extmod/asyncio_basic2.py")
+            skip_tests.add("extmod/asyncio_cancel_self.py")
+            skip_tests.add("extmod/asyncio_current_task.py")
+            skip_tests.add("extmod/asyncio_exception.py")
+            skip_tests.add("extmod/asyncio_gather_finished_early.py")
+            skip_tests.add("extmod/asyncio_get_event_loop.py")
+            skip_tests.add("extmod/asyncio_heaplock.py")
+            skip_tests.add("extmod/asyncio_loop_stop.py")
+            skip_tests.add("extmod/asyncio_new_event_loop.py")
+            skip_tests.add("extmod/asyncio_threadsafeflag.py")
+            skip_tests.add("extmod/asyncio_wait_for_fwd.py")
             skip_tests.add("extmod/binascii_a2b_base64.py")
             skip_tests.add("extmod/re_stack_overflow.py")
             skip_tests.add("extmod/time_res.py")