Improve code quality across test suite

- Fix missing global declaration and copy-paste error in property test
- Prevent KeyError for unset environment variables
- Add try-finally for robust warning flag handling
- Anchor regex pattern for proper color validation

Author: jserv

allnoconfig.py

@@ -32,9 +32,11 @@ def main():
     #    accept 0/1/2, for n/m/y). The assignments will be ignored for other
     #    symbol types, which is what we want.
     kconf.warn = False
-    for sym in kconf.unique_defined_syms:
-        sym.set_value(2 if sym.is_allnoconfig_y else 0)
-    kconf.warn = True
+    try:
+        for sym in kconf.unique_defined_syms:
+            sym.set_value(2 if sym.is_allnoconfig_y else 0)
+    finally:
+        kconf.warn = True
 
     kconf.load_allconfig("allno.config")
 

genconfig.py

@@ -138,7 +138,7 @@ def main():
     if args.env_list is not None:
         with _open_write(args.env_list) as f:
             for env_var in kconf.env_vars:
-                f.write("{}={}\n".format(env_var, os.environ[env_var]))
+                f.write("{}={}\n".format(env_var, os.environ.get(env_var, "")))
 
 
 def _open_write(path):

menuconfig.py

@@ -555,7 +555,7 @@ def parse_color(color_def):
         color_def = color_def.split(":", 1)[1]
 
         # HTML format, #RRGGBB
-        if re.match("#[A-Fa-f0-9]{6}", color_def):
+        if re.match("^#[A-Fa-f0-9]{6}$", color_def):
             return _color_from_rgb((
                 int(color_def[1:3], 16),
                 int(color_def[3:5], 16),

testsuite.py

@@ -89,7 +89,7 @@ def verify_equal(x, y):
 
 
 def run_tests():
-    global obsessive, log
+    global obsessive, obsessive_min_config, log
     for s in sys.argv[1:]:
         if s == "obsessive":
             obsessive = True
@@ -2379,7 +2379,7 @@ def verify_props(desc, props, prop_names):
     verify_props("select", c.syms["MULTIDEF"].selects,
                  "AA BB CC DD EE FF GG HH II JJ")
 
-    verify_props("imply", c.syms["MULTIDEF"].selects,
+    verify_props("imply", c.syms["MULTIDEF"].implies,
                  "AA BB CC DD EE FF GG HH II JJ")
 
     verify_props("select", c.syms["MULTIDEF_CHOICE"].selects,