micropython: add micropython component

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

@@ -0,0 +1,42 @@
+print(','.join(()))
+print(','.join(('a',)))
+print(','.join(('a', 'b')))
+
+print(','.join([]))
+print(','.join(['a']))
+print(','.join(['a', 'b']))
+
+print(''.join(''))
+print(''.join('abc'))
+print(','.join('abc'))
+print(','.join('abc' for i in range(5)))
+
+print(b','.join([b'abc', b'123']))
+
+try:
+    ''.join(None)
+except TypeError:
+    print("TypeError")
+
+try:
+    print(b','.join(['abc', b'123']))
+except TypeError:
+    print("TypeError")
+
+try:
+    print(','.join([b'abc', b'123']))
+except TypeError:
+    print("TypeError")
+
+# joined by the compiler
+print("a" "b")
+print("a" '''b''')
+print("a" # inline comment
+    "b")
+print("a" \
+    "b")
+
+# the following should not be joined by the compiler
+x = 'a'
+'b'
+print(x)