fix(env): add --skip-env-file to tests where .env clobbers env vars

The .env file sourcing overwrites BASHUNIT_BOOTSTRAP_ARGS and
BASHUNIT_NO_COLOR set by the test environment or early flag scan.

Author: Chemaclass

tests/acceptance/bashunit_bootstrap_args_test.sh

@@ -26,7 +26,7 @@ function test_bootstrap_args_via_env_variable() {
   # Use --env flag to set the bootstrap file (avoiding .env override),
   # but use BASHUNIT_BOOTSTRAP_ARGS from environment
   output=$(BASHUNIT_BOOTSTRAP_ARGS="hello world" \
-    ./bashunit --no-parallel --simple \
+    ./bashunit --no-parallel --simple --skip-env-file \
     --env "tests/acceptance/fixtures/bootstrap_with_args.sh" \
     tests/acceptance/fixtures/test_bootstrap_args.sh 2>&1) || true
 

tests/acceptance/bashunit_no_color_test.sh

@@ -8,7 +8,7 @@ function set_up_before_script() {
 function test_bashunit_no_color_flag_disables_colors() {
   local test_file=./tests/acceptance/fixtures/test_bashunit_when_a_test_passes.sh
   local output
-  output=$(./bashunit --no-parallel --env "$TEST_ENV_FILE" "$test_file" --no-color --simple)
+  output=$(./bashunit --no-parallel --skip-env-file --env "$TEST_ENV_FILE" "$test_file" --no-color --simple)
 
   # ANSI escape codes start with \x1b[ (ESC[) - should not be present
   assert_not_contains $'\e[' "$output"