micropython: add micropython component

components/language/micropython/tests/basics/struct1.py

@@ -0,0 +1,98 @@
+try:
+    import ustruct as struct
+except:
+    try:
+        import struct
+    except ImportError:
+        print("SKIP")
+        raise SystemExit
+
+print(struct.calcsize("<bI"))
+print(struct.unpack("<bI", b"\x80\0\0\x01\0"))
+print(struct.calcsize(">bI"))
+print(struct.unpack(">bI", b"\x80\0\0\x01\0"))
+
+# 32-bit little-endian specific
+#print(struct.unpack("bI", b"\x80\xaa\x55\xaa\0\0\x01\0"))
+
+print(struct.pack("<l", 1))
+print(struct.pack(">l", 1))
+print(struct.pack("<i", 1))
+print(struct.pack(">i", 1))
+print(struct.pack("<h", 1))
+print(struct.pack(">h", 1))
+print(struct.pack("<b", 1))
+print(struct.pack(">b", 1))
+
+print(struct.pack("<bI", -128, 256))
+print(struct.pack(">bI", -128, 256))
+
+print(struct.calcsize("100sI"))
+print(struct.calcsize("97sI"))
+print(struct.unpack("<6sH", b"foo\0\0\0\x12\x34"))
+print(struct.pack("<6sH", b"foo", 10000))
+
+s = struct.pack("BHBI", 10, 100, 200, 300)
+v = struct.unpack("BHBI", s)
+print(v == (10, 100, 200, 300))
+
+# network byte order
+print(struct.pack('!i', 123))
+
+# check that we get an error if the buffer is too small
+try:
+    struct.unpack('I', b'\x00\x00\x00')
+except:
+    print('struct.error')
+
+# first arg must be a string
+try:
+    struct.pack(1, 2)
+except TypeError:
+    print('TypeError')
+
+# make sure that unknown types are detected
+try:
+    struct.pack("z", 1)
+except:
+    print("Unknown type")
+
+# Initially repitition counters were supported only for strings,
+# but later were implemented for all.
+print(struct.unpack("<3B2h", b"foo\x12\x34\xff\xff"))
+print(struct.pack("<3B", 1, 2, 3))
+
+# pack_into
+buf = bytearray(b'>>>123<<<')
+struct.pack_into('<bbb', buf, 3, 0x41, 0x42, 0x43)
+print(buf)
+struct.pack_into('<bbb', buf, -6, 0x44, 0x45, 0x46)
+print(buf)
+
+# check that we get an error if the buffer is too small
+try:
+    struct.pack_into('I', bytearray(1), 0, 0)
+except:
+    print('struct.error')
+
+try:
+    struct.pack_into('<bbb', buf, 7, 0x41, 0x42, 0x43)
+except:
+    print('struct.error')
+try:
+    struct.pack_into('<bbb', buf, -10, 0x41, 0x42, 0x43)
+except:
+    print('struct.error')
+
+# unpack_from
+buf = b'0123456789'
+print(struct.unpack_from('<b', buf, 4))
+print(struct.unpack_from('<b', buf, -4))
+try:
+    print(struct.unpack_from('<b', buf, 10))
+except:
+    print('struct.error')
+try:
+    print(struct.unpack_from('<b', buf, -11))
+except:
+    print('struct.error')