[RFC PATCH v7 21/23] test: hush: Fix loop tests for hush 2021

[Francis Laniel <francis.laniel@amarulasolutions.com>]

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

Signed-off-by: Francis Laniel <francis.laniel@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 ca777e38fe..add5402a32 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)
 {
@@ -21,7 +24,12 @@ 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;
 }
@@ -31,12 +39,30 @@ 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;
 }
-- 
2.34.1