tests/basics: Add tests for int.from_bytes when src has trailing zeros.

dpgeorge · dpgeorge · commit 810133d97d43 · 2017-04-25T12:07:02.000+10:00
The trailing zeros should be truncated from the converted value.
diff --git a/tests/basics/int_bytes.py b/tests/basics/int_bytes.py
@@ -4,3 +4,7 @@
 print(int.from_bytes(b"\x00\x01\0\0\0\0\0\0", "little"))
 print(int.from_bytes(b"\x01\0\0\0\0\0\0\0", "little"))
 print(int.from_bytes(b"\x00\x01\0\0\0\0\0\0", "little"))
+
+# check that extra zero bytes don't change the internal int value
+print(int.from_bytes(bytes(20), "little") == 0)
+print(int.from_bytes(b"\x01" + bytes(20), "little") == 1)
diff --git a/tests/basics/int_bytes_intbig.py b/tests/basics/int_bytes_intbig.py
@@ -7,3 +7,6 @@
 print(il)
 print(ib)
 print(il.to_bytes(20, "little"))
+
+# check that extra zero bytes don't change the internal int value
+print(int.from_bytes(b + bytes(10), "little") == int.from_bytes(b, "little"))
