The usual...

Lib/dos-8x3/test_ext.py

@@ -0,0 +1,143 @@
+from UserList import UserList
+
+def f(*a, **k):
+    print a, k
+
+def g(x, *y, **z):
+    print x, y, z
+
+def h(j=1, a=2, h=3):
+    print j, a, h
+
+f()
+f(1)
+f(1, 2)
+f(1, 2, 3)
+
+f(1, 2, 3, *(4, 5))
+f(1, 2, 3, *[4, 5])
+f(1, 2, 3, *UserList([4, 5]))
+f(1, 2, 3, **{'a':4, 'b':5})
+f(1, 2, 3, *(4, 5), **{'a':6, 'b':7})
+f(1, 2, 3, x=4, y=5, *(6, 7), **{'a':8, 'b':9})
+
+try:
+    g()
+except TypeError, err:
+    print "TypeError:", err
+else:
+    print "should raise TypeError: not enough arguments; expected 1, got 0"
+    
+try:
+    g(*())
+except TypeError, err:
+    print "TypeError:", err
+else:
+    print "should raise TypeError: not enough arguments; expected 1, got 0"
+    
+try:
+    g(*(), **{})
+except TypeError, err:
+    print "TypeError:", err
+else:
+    print "should raise TypeError: not enough arguments; expected 1, got 0"
+    
+g(1)
+g(1, 2)
+g(1, 2, 3)
+g(1, 2, 3, *(4, 5))
+class Nothing: pass
+try:
+    g(*Nothing())
+except AttributeError, attr:
+    pass
+else:
+    print "should raise AttributeError: __len__"
+
+class Nothing:
+    def __len__(self):
+        return 5
+try:
+    g(*Nothing())
+except AttributeError, attr:
+    pass
+else:
+    print "should raise AttributeError: __getitem__"
+    
+class Nothing:
+    def __len__(self):
+        return 5
+    def __getitem__(self, i):
+        if i < 3:
+            return i
+        else:
+            raise IndexError, i
+g(*Nothing())
+
+# make sure the function call doesn't stomp on the dictionary?
+d = {'a': 1, 'b': 2, 'c': 3}
+d2 = d.copy()
+assert d == d2
+g(1, d=4, **d)
+print d
+print d2
+assert d == d2, "function call modified dictionary"
+
+# what about willful misconduct?
+def saboteur(**kw):
+    kw['x'] = locals()
+d = {}
+saboteur(a=1, **d)
+assert d == {}
+        
+try:
+    g(1, 2, 3, **{'x':4, 'y':5})
+except TypeError, err:
+    print err
+else:
+    print "should raise TypeError: keyword parameter redefined"
+    
+try:
+    g(1, 2, 3, a=4, b=5, *(6, 7), **{'a':8, 'b':9})
+except TypeError, err:
+    print err
+else:
+    print "should raise TypeError: keyword parameter redefined"
+
+try:
+    f(**{1:2})
+except TypeError, err:
+    print err
+else:
+    print "should raise TypeError: keywords must be strings"
+
+try:
+    h(**{'e': 2})
+except TypeError, err:
+    print err
+else:
+    print "should raise TypeError: unexpected keyword argument: e"
+
+try:
+    h(*h)
+except TypeError, err:
+    print err
+else:
+    print "should raise TypeError: * argument must be a tuple"
+
+try:
+    h(**h)
+except TypeError, err:
+    print err
+else:
+    print "should raise TypeError: ** argument must be a dictionary"
+
+def f2(*a, **b):
+    return a, b
+
+d = {}
+for i in range(512):
+    key = 'k%d' % i
+    d[key] = i
+a, b = f2(1, *(2, 3), **d)
+print len(a), len(b), b == d