test(testament): zip/map

tests/testaments/builtins/map_zip.nim

@@ -0,0 +1,31 @@
+discard """
+  output: '''
+1 4
+5
+2 5
+7
+1
+2
+3
+(1, 4, 'a')
+(2, 5, 'b')
+'''
+"""
+import pylib/builtins/iters
+
+let
+  it1 = [1, 2, 3]
+  it2 = [4, 5]
+
+func f(a, b: int): int =
+  debugEcho a, ' ', b
+  a+b
+
+for i in map(f, it1, it2): echo i
+
+
+
+func f(a: int): int = a
+for i in map(f, it1): echo i
+
+for i in zip(it1, it2, "abc"): echo i