minor unrelated test changes

Co-authored-by: Copilot <copilot@github.com>

Author: serkonda7

.github/workflows/ci.yml

@@ -51,16 +51,17 @@ jobs:
           bait test -b c tests/array
           bait test -b c tests/auto_str
           bait test -b c tests/for/loop_test.bt
+          bait test -b c tests/for/for_in_test.bt
           bait test -b c tests/int/promotion_test.bt
-          bait test -b c tests/other/bitwise_test.bt
+          # bait test -b c tests/int/bitwise_test.bt
       - name: Run lib tests
         run: |
           # bait test -b c lib/bait
           bait test -b c lib/builtin
           # bait test -b c lib/cli
           bait test -b c lib/encoding
           bait test -b c lib/hash
-          # bait test -b c lib/os
+          bait test -b c lib/os
           bait test -b c lib/strings
       # - name: Run tool tests
         # run: bait test cli/tools

tests/for/labels_test.bt

@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: Lukas Neubert <lukas.neubert@proton.me>
+// SPDX-FileCopyrightText: Lukas Neubert
 // SPDX-License-Identifier: MIT
 
 fun test_labelled_break_and_continue() {

tests/int/bitwise_test.bt

@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: Lukas Neubert <lukas.neubert@proton.me>
+// SPDX-FileCopyrightText: Lukas Neubert
 // SPDX-License-Identifier: MIT
 
 fun test_bitwise_operators() {
@@ -19,3 +19,12 @@ fun test_bitwise_u32() {
 	b := 0b1110110110111000100000110010000 as u32 // 1994146192
 	assert a >> 1 == b
 }
+
+// Verify bitwise not on u32 stays within u32 bounds.
+fun test_unsigned_not() {
+	zero := 0 as u32
+	one := 1 as u32
+
+	assert ~zero == MAX_U32
+	assert ~one == (MAX_U32 - 1)
+}