Modifies return code got from while loop as hush 2021 always returns 0 from
while loop.

Signed-off-by: Francis Laniel <francis.lan...@amarulasolutions.com>
---
 test/hush/loop.c | 34 ++++++++++++++++++++++++++++++----
 1 file changed, 30 insertions(+), 4 deletions(-)

diff --git a/test/hush/loop.c b/test/hush/loop.c
index 519c78ef7e..d3a55b27fa 100644
--- a/test/hush/loop.c
+++ b/test/hush/loop.c
@@ -9,6 +9,9 @@
 #include <env_attr.h>
 #include <test/hush.h>
 #include <test/ut.h>
+#include <asm/global_data.h>
+
+DECLARE_GLOBAL_DATA_PTR;
 
 static int hush_test_for(struct unit_test_state *uts)
 {
@@ -20,7 +23,12 @@ static int hush_test_for(struct unit_test_state *uts)
        ut_assert_nextline("quux");
        ut_assert_console_end();
 
-       puts("Beware: this test set local variable loop_i and it cannot be 
unset!");
+       if (gd->flags & GD_FLG_HUSH_2021_PARSER) {
+               /* Reset local variable. */
+               ut_assertok(run_command("loop_i=", 0));
+       } else if (gd->flags & GD_FLG_HUSH_OLD_PARSER) {
+               puts("Beware: this test set local variable loop_i and it cannot 
be unset!");
+       }
 
        return 0;
 }
@@ -30,12 +38,30 @@ static int hush_test_while(struct unit_test_state *uts)
 {
        console_record_reset_enable();
 
-       /* Exit status is that of test, so 1 since test is false to quit the 
loop. */
-       ut_asserteq(1, run_command("while test -z \"$loop_foo\"; do echo bar; 
loop_foo=quux; done", 0));
+       if (gd->flags & GD_FLG_HUSH_2021_PARSER) {
+               /*
+               * Hush 2021 always returns 0 from while loop...
+               * You can see code snippet near this line to have a better
+               * understanding:
+               * debug_printf_exec(": while expr is false: breaking 
(exitcode:EXIT_SUCCESS)\n");
+               */
+               ut_assertok(run_command("while test -z \"$loop_foo\"; do echo 
bar; loop_foo=quux; done", 0));
+       } else if (gd->flags & GD_FLG_HUSH_OLD_PARSER) {
+               /*
+                * Exit status is that of test, so 1 since test is false to quit
+                * the loop.
+                */
+               ut_asserteq(1, run_command("while test -z \"$loop_foo\"; do 
echo bar; loop_foo=quux; done", 0));
+       }
        ut_assert_nextline("bar");
        ut_assert_console_end();
 
-       puts("Beware: this test set local variable loop_foo and it cannot be 
unset!");
+       if (gd->flags & GD_FLG_HUSH_2021_PARSER) {
+               /* Reset local variable. */
+               ut_assertok(run_command("loop_foo=", 0));
+       } else if (gd->flags & GD_FLG_HUSH_OLD_PARSER) {
+               puts("Beware: this test set local variable loop_foo and it 
cannot be unset!");
+       }
 
        return 0;
 }
-- 
2.25.1

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