[PATCH v3 6/6] test: cmd: setexpr: add format string tests

[Roland Gaudig]

From: Roland Gaudig <roland.gaudig at weidmueller.com>

Add test cases for the setexpr format string operator.

Signed-off-by: Roland Gaudig <roland.gaudig at weidmueller.com>
---

(no changes since v1)

 test/cmd/setexpr.c | 84 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 84 insertions(+)

diff --git a/test/cmd/setexpr.c b/test/cmd/setexpr.c
index 08b6e6e724..0dc94f7e61 100644
--- a/test/cmd/setexpr.c
+++ b/test/cmd/setexpr.c
@@ -386,6 +386,90 @@ static int setexpr_test_str_long(struct unit_test_state *uts)
 }
 SETEXPR_TEST(setexpr_test_str_long, UT_TESTF_CONSOLE_REC);
 
+#ifdef CONFIG_CMD_SETEXPR_FMT
+/* Test 'setexpr' command with simply setting integers */
+static int setexpr_test_fmt(struct unit_test_state *uts)
+{
+	u8 *buf;
+
+	buf = map_sysmem(0, BUF_SIZE);
+	memset(buf, '\xff', BUF_SIZE);
+
+	/* Test decimal conversion */
+	ut_assertok(run_command("setexpr fred fmt %d 0xff", 0));
+	ut_asserteq_str("255", env_get("fred"));
+	/* Test hexadecimal conversion with 0x prefix and 4 digits */
+	ut_assertok(run_command("setexpr fred fmt 0x%04x 257", 0));
+	ut_asserteq_str("0x0257", env_get("fred"));
+	/* Test octal conversion with % prefix */
+	ut_assertok(run_command("setexpr fred fmt %%%o 8", 0));
+	ut_asserteq_str("%10", env_get("fred"));
+	/* Test argument surrounded by %% */
+	ut_assertok(run_command("setexpr fred fmt %%%x%% 0xff", 0));
+	ut_asserteq_str("%ff%", env_get("fred"));
+	/* Test escape sequence */
+	ut_assertok(run_command("setexpr fred fmt \"hello\\040world\"", 0));
+	ut_asserteq_str("hello world", env_get("fred"));
+	/* Test %b with string containing octal escape sequence */
+	ut_assertok(run_command("setexpr fred fmt oh%bno \137", 0));
+	ut_asserteq_str("oh_no", env_get("fred"));
+	/* Test %b with string containing \c escape sequence */
+	ut_assertok(run_command("setexpr fred fmt hello%bworld \"\\c\"", 0));
+	ut_asserteq_str("hello", env_get("fred"));
+	/* Test multiple arguments referencing environment varialbes */
+	ut_assertok(run_command("setenv a eff", 0));
+	ut_assertok(run_command("setenv b hello", 0));
+	ut_assertok(run_command("setenv c 0x63", 0));
+	ut_assertok(run_command("setenv d world", 0));
+	ut_assertok(run_command("setexpr fred fmt \"0x%08x-%s-%d-%s\" $a $b $c $d", 0));
+	ut_asserteq_str("0x00000eff-hello-99-world", env_get("fred"));
+	/* Test with two format specifiers, but only one argument */
+	ut_assertok(run_command("setexpr fred fmt %d_%x 100", 0));
+	ut_asserteq_str("256_0", env_get("fred"));
+	/* Test maximum string length */
+	ut_assertok(run_command("setexpr fred fmt \"%0127d\" 7b", 0));
+	ut_asserteq_str("0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000123", env_get("fred"));
+	/* Test maximum unsigned integer size */
+	ut_assertok(run_command("setexpr fred fmt %u ffffffffffffffff", 0));
+	ut_asserteq_str("18446744073709551615", env_get("fred"));
+	/* Test maximum positive integer size */
+	ut_assertok(run_command("setexpr fred fmt %d 7fffffffffffffff", 0));
+	ut_asserteq_str("9223372036854775807", env_get("fred"));
+	/* Test maximum negative integer size */
+	ut_assertok(run_command("setexpr fred fmt %d 8000000000000000", 0));
+	ut_asserteq_str("-9223372036854775808", env_get("fred"));
+	/* Test minimum negative integer size */
+	ut_assertok(run_command("setexpr fred fmt %d ffffffffffffffff", 0));
+	ut_asserteq_str("-1", env_get("fred"));
+	/* Test signed value with + sign */
+	ut_assertok(run_command("setexpr fred fmt %d +5", 0));
+	ut_asserteq_str("5", env_get("fred"));
+	/* Test signed value with - sign */
+	ut_assertok(run_command("setexpr fred fmt %d -4", 0));
+	ut_asserteq_str("-4", env_get("fred"));
+	/* Test unsigned value with + sign */
+	ut_assertok(run_command("setexpr fred fmt %u +3", 0));
+	ut_asserteq_str("3", env_get("fred"));
+	/* Test unsigned value with - sign */
+	ut_assertok(run_command("setexpr fred fmt %x -2", 0));
+	ut_asserteq_str("fffffffffffffffe", env_get("fred"));
+	/* Error test with missing format specifier */
+	ut_asserteq(1, run_command("setexpr fred fmd hello 0xff", 0));
+	/* Error test with invalid format type */
+	ut_asserteq(1, run_command("setexpr fred fmt %a 0xff", 0));
+	/* Error test with incomplete format specifier */
+	ut_asserteq(1, run_command("setexpr fred fmt hello% bf", 0));
+	/* Error exceeding maximum string length */
+	ut_asserteq(1, run_command("setexpr fred fmt \"%0128d\" 456", 0));
+
+	unmap_sysmem(buf);
+
+	return 0;
+}
+
+SETEXPR_TEST(setexpr_test_fmt, UT_TESTF_CONSOLE_REC);
+#endif
+
 int do_ut_setexpr(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 {
 	struct unit_test *tests = UNIT_TEST_SUITE_START(setexpr_test);
-- 
2.25.1