tests: Add tests for builtins: all, any, sum, abs.

tests/basics/builtin_allany.py

@@ -0,0 +1,20 @@
+# test builtin "all" and "any"
+
+tests = (
+    (),
+    [],
+    [False],
+    [True],
+    [False, True],
+    [True, False],
+    [False, False],
+    [True, True],
+    (False for i in range(10)),
+    (True for i in range(10)),
+)
+
+for test in tests:
+    print(all(test))
+
+for test in tests:
+    print(any(test))

tests/basics/builtin_sum.py

@@ -0,0 +1,14 @@
+# test builtin "sum"
+
+tests = (
+    (),
+    [],
+    [0],
+    [1],
+    [0, 1, 2],
+    (i for i in range(10)),
+)
+
+for test in tests:
+    print(sum(test))
+    print(sum(test, -2))