tests: Add some more tests to improve code coverage of corner cases.

tests/basics/builtin_range.py

@@ -3,6 +3,10 @@
 # print
 print(range(4))
 
+# bool
+print(bool(range(0)))
+print(bool(range(10)))
+
 # len
 print(len(range(0)))
 print(len(range(4)))
@@ -29,3 +33,15 @@ print(range(4)[1:-2:2])
 print(range(1, 2, 3).start)
 print(range(1, 2, 3).stop)
 print(range(1, 2, 3).step)
+
+# bad unary op
+try:
+    -range(1)
+except TypeError:
+    print("TypeError")
+
+# bad subscription (can't store)
+try:
+    range(1)[0] = 1
+except TypeError:
+    print("TypeError")

tests/basics/fun_error.py

@@ -29,3 +29,6 @@ test_exc("[].sort(noexist=1)", TypeError)
 
 # function with keyword args not given a specific keyword arg
 test_exc("enumerate()", TypeError)
+
+# kw given for positional, but a different positional is missing
+test_exc("def f(x, y): pass\nf(x=1)", TypeError)

tests/basics/getitem.py

@@ -20,3 +20,13 @@ try:
         next(it)
 except StopIteration:
     pass
+
+# this class raises a non-StopIteration exception on iteration
+class A:
+    def __getitem__(self, i):
+        raise TypeError
+try:
+    for i in A():
+        pass
+except TypeError:
+    print("TypeError")

tests/basics/namedtuple1.py

@@ -49,10 +49,22 @@ try:
 except TypeError:
     print("TypeError")
 
+# enough args, but kw is wrong
+try:
+    t = T(1, baz=3)
+except TypeError:
+    print("TypeError")
+
+# bad argument for member spec
+try:
+    namedtuple('T', 1)
+except TypeError:
+    print("TypeError")
+
 # Try single string
-# Not implemented so far
-#T3 = namedtuple("TupComma", "foo bar")
-#t = T3(1, 2)
+T3 = namedtuple("TupComma", "foo bar")
+t = T3(1, 2)
+print(t.foo, t.bar)
 
 # Try single string with comma field seperator
 # Not implemented so far

tests/basics/struct1.py

@@ -37,3 +37,6 @@ print(struct.pack("<I", 0xffffffff))
 # check maximum unpack
 print(struct.unpack("<I", b"\xff\xff\xff\xff"))
 print(struct.unpack("<Q", b"\xff\xff\xff\xff\xff\xff\xff\xff"))
+
+# network byte order
+print(struct.pack('!i', 123))

tests/extmod/zlibd_decompress.py

@@ -23,3 +23,9 @@ exp = b"hello"
 out = zlib.decompress(v, -15)
 assert(out == exp)
 print(exp)
+
+# this should error
+try:
+    zlib.decompress(b'abc')
+except Exception:
+    print("Exception")