[RFC PATCH 7/7] dyndbg-test: test keyword !value negation

[Jim Cromie <jim.cromie@gmail.com>]

---
 .../dynamic_debug/dyndbg_selftest.sh          | 35 +++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/tools/testing/selftests/dynamic_debug/dyndbg_selftest.sh b/tools/testing/selftests/dynamic_debug/dyndbg_selftest.sh
index 09937dca3056..5c35d7cc5ecf 100755
--- a/tools/testing/selftests/dynamic_debug/dyndbg_selftest.sh
+++ b/tools/testing/selftests/dynamic_debug/dyndbg_selftest.sh
@@ -350,12 +350,47 @@ function test_mod_submod {
     ifrmmod test_dynamic_debug
 }
 
+function test_negated_keywords {
+    echo -e "${GREEN}# TEST_NEGATED_KEYWORDS ${NC}"
+
+    # Test 1: Disable negated subset from enabled set
+    # Enables all 6 in init/main.c, then pulses ONLY those that are NOT run_init_process (the 2 blacklist sites) OFF.
+    ddcmd =_
+    ddcmd file init/main.c +p
+    check_match_ct 'init/main.c:.*=p' 6 -r
+    ddcmd file init/main.c func !run_init_process -p
+    # Result: 6 - 2 = 4 sites (run_init_process) remain enabled.
+    check_match_ct 'init/main.c:.*=p' 4 -r
+    check_match_ct 'run_init_process' 4 -r
+
+    # Test 2: Enable negated subset from clean slate
+    # Negation !run_init_process should match the 2 blacklist sites.
+    ddcmd =_
+    ddcmd file init/main.c func !run_init_process +p
+    # Verify exactly 2 sites enabled
+    check_match_ct 'init/main.c:.*=p' 2 -r
+    check_match_ct 'initcall_blacklist[[:space:]]' 1 -r
+    check_match_ct 'initcall_blacklisted[[:space:]]' 1 -r
+
+    # Test 3: Enable negated subset with wildcard
+    # Negation !run_init_* should match the same 2 blacklist sites.
+    ddcmd =_
+    ddcmd file init/main.c func !run_init_* +p
+    # Verify exactly 2 sites enabled
+    check_match_ct 'init/main.c:.*=p' 2 -r
+    check_match_ct 'initcall_blacklist[[:space:]]' 1 -r
+    check_match_ct 'initcall_blacklisted[[:space:]]' 1 -r
+
+    ddcmd =_
+}
+
 tests_list=(
     basic_tests
     # these require test_dynamic_debug*.ko
     comma_terminator_tests
     test_percent_splitting
     test_mod_submod
+    test_negated_keywords
 )
 
 # Run tests
-- 
2.53.0