test: hush: Test hush loops

The added tests verifies correct behavior of for, while and until loops.

Signed-off-by: Francis Laniel <francis.laniel@amarulasolutions.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

diff --git a/test/hush/Makefile b/test/hush/Makefile
index ff4fe7700b6f9cab0897d88e81ebbf7177ddfb6b..a2d98815e501e6cfb9c5828b40b3b33d0b6984de 100644 (file)
--- a/test/hush/Makefile
+++ b/test/hush/Makefile
@@ -7,3 +7,4 @@ obj-y += cmd_ut_hush.o
 obj-y += if.o
 obj-y += dollar.o
 obj-y += list.o
+obj-y += loop.o

diff --git a/test/hush/loop.c b/test/hush/loop.c
new file mode 100644 (file)
index 0000000..ca777e3
--- /dev/null
+++ b/test/hush/loop.c
@@ -0,0 +1,65 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * (C) Copyright 2021
+ * Francis Laniel, Amarula Solutions, francis.laniel@amarulasolutions.com
+ */
+
+#include <common.h>
+#include <command.h>
+#include <env_attr.h>
+#include <test/hush.h>
+#include <test/ut.h>
+
+static int hush_test_for(struct unit_test_state *uts)
+{
+       console_record_reset_enable();
+
+       ut_assertok(run_command("for loop_i in foo bar quux quux; do echo $loop_i; done", 0));
+       ut_assert_nextline("foo");
+       ut_assert_nextline("bar");
+       ut_assert_nextline("quux");
+       ut_assert_nextline("quux");
+       ut_assert_console_end();
+
+       puts("Beware: this test set local variable loop_i and it cannot be unset!");
+
+       return 0;
+}
+HUSH_TEST(hush_test_for, 0);
+
+static int hush_test_while(struct unit_test_state *uts)
+{
+       console_record_reset_enable();
+
+       /* Exit status is that of test, so 1 since test is false to quit the loop. */
+       ut_asserteq(1, run_command("while test -z \"$loop_foo\"; do echo bar; loop_foo=quux; done", 0));
+       ut_assert_nextline("bar");
+       ut_assert_console_end();
+
+       puts("Beware: this test set local variable loop_foo and it cannot be unset!");
+
+       return 0;
+}
+HUSH_TEST(hush_test_while, 0);
+
+static int hush_test_until(struct unit_test_state *uts)
+{
+       console_record_reset_enable();
+       env_set("loop_bar", "bar");
+
+       /*
+        * WARNING We have to use environment variable because it is not possible
+        * resetting local variable.
+        */
+       ut_assertok(run_command("until test -z \"$loop_bar\"; do echo quux; setenv loop_bar; done", 0));
+       ut_assert_nextline("quux");
+       ut_assert_console_end();
+
+       /*
+        * Loop normally resets foo environment variable, but we reset it here in
+        * case the test failed.
+        */
+       env_set("loop_bar", NULL);
+       return 0;
+}
+HUSH_TEST(hush_test_until, 0);