tests: Add tests for _thread module.

Includes functionality and stress tests.

1 files changed, 25 insertions, 0 deletions

diff --git a/tests/thread/thread_shared2.py b/tests/thread/thread_shared2.py
new file mode 100644
index 000000000..3e3e2dc33
--- /dev/null
+++ b/tests/thread/thread_shared2.py
@@ -0,0 +1,25 @@
+# test capability for threads to access a shared mutable data structure
+# (without contention because they access different parts of the structure)
+#
+# MIT license; Copyright (c) 2016 Damien P. George on behalf of Pycom Ltd
+
+try:
+    import utime as time
+except ImportError:
+    import time
+import _thread
+
+def foo(lst, i):
+    lst[i] += 1
+
+def thread_entry(n, lst, idx):
+    for i in range(n):
+        foo(lst, idx)
+
+lst = [0, 0]
+_thread.start_new_thread(thread_entry, (10, lst, 0))
+_thread.start_new_thread(thread_entry, (20, lst, 1))
+
+# wait for threads to finish
+time.sleep(0.2)
+print(lst)