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-rw-r--r--tests/extmod/sha256.py29
1 files changed, 29 insertions, 0 deletions
diff --git a/tests/extmod/sha256.py b/tests/extmod/sha256.py
new file mode 100644
index 0000000000..f74a7da224
--- /dev/null
+++ b/tests/extmod/sha256.py
@@ -0,0 +1,29 @@
+try:
+ import uhashlib as hashlib
+except ImportError:
+ import hashlib
+
+
+h = hashlib.sha256()
+print(h.digest())
+
+h = hashlib.sha256()
+h.update(b"123")
+print(h.digest())
+
+h = hashlib.sha256()
+h.update(b"abcd" * 1000)
+print(h.digest())
+
+print(hashlib.sha256(b"\xff" * 64).digest())
+
+# TODO: running .digest() several times in row is not supported()
+#h = hashlib.sha256(b'123')
+#print(h.digest())
+#print(h.digest())
+
+# TODO: partial digests are not supported
+#h = hashlib.sha256(b'123')
+#print(h.digest())
+#h.update(b'456')
+#print(h.digest())