tests: Add more tests for default keyword-only args.

tests/basics/fun-kwonly.py

@@ -43,15 +43,6 @@ def f(a, *, b, **kw):
 f(1, b=2)
 f(1, b=2, c=3)
 
-# with a default value
-def g(a, *, b=2, c):
-    print(a, b, c)
-
-g(1, c=3)
-g(1, b=3, c=4)
-g(1, **{'c':3})
-g(1, **{'b':'3', 'c':4})
-
 # with named star
 def f(*a, b, c):
     print(a, b, c)

tests/basics/fun-kwonlydef.py

+# test function args, keyword only with default value
+
+# a single arg with a default
+def f1(*, a=1):
+    print(a)
+f1()
+f1(a=2)
+
+# 1 arg default, 1 not
+def f2(*, a=1, b):
+    print(a, b)
+f2(b=2)
+f2(a=2, b=3)
+
+# 1 positional, 1 arg default, 1 not
+def f3(a, *, b=2, c):
+    print(a, b, c)
+f3(1, c=3)
+f3(1, b=3, c=4)
+f3(1, **{'c':3})
+f3(1, **{'b':'3', 'c':4})
+
+# many args, not all with defaults
+def f4(*, a=1, b, c=3, d, e=5, f):
+    print(a, b, c, d, e, f)
+f4(b=2, d=4, f=6)
+f4(a=11, b=2, d=4, f=6)
+f4(a=11, b=2, c=33, d=4, e=55, f=6)
+f4(f=6, e=55, d=4, c=33, b=2, a=11)
+
+# positional with default, then keyword only
+def f5(a, b=4, *c, d=8):
+    print(a, b, c, d)
+f5(1)
+f5(1, d=9)
+f5(1, b=44, d=9)