[PATCH v7 7/7] test: rng: Add a UT testcase for the rng command
Sughosh Ganu
sughosh.ganu at linaro.org
Wed Jul 20 14:29:26 CEST 2022
The 'rng' command dumps a number of random bytes on the console. Add a
set of tests for the 'rng' command. The test function performs basic
sanity testing of the command.
Since a unit test is being added for the command, enable it by default
in the sandbox platforms.
Signed-off-by: Sughosh Ganu <sughosh.ganu at linaro.org>
Reviewed-by: Simon Glass <sjg at chromium.org>
---
Changes since V6: None
cmd/Kconfig | 1 +
test/dm/rng.c | 29 +++++++++++++++++++++++++++++
2 files changed, 30 insertions(+)
diff --git a/cmd/Kconfig b/cmd/Kconfig
index d5f842136c..76878ce307 100644
--- a/cmd/Kconfig
+++ b/cmd/Kconfig
@@ -1961,6 +1961,7 @@ config CMD_GETTIME
config CMD_RNG
bool "rng command"
depends on DM_RNG
+ default y if SANDBOX
select HEXDUMP
help
Print bytes from the hardware random number generator.
diff --git a/test/dm/rng.c b/test/dm/rng.c
index 5b34c93ed6..6d1f68848d 100644
--- a/test/dm/rng.c
+++ b/test/dm/rng.c
@@ -25,3 +25,32 @@ static int dm_test_rng_read(struct unit_test_state *uts)
return 0;
}
DM_TEST(dm_test_rng_read, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT);
+
+/* Test the rng command */
+static int dm_test_rng_cmd(struct unit_test_state *uts)
+{
+ struct udevice *dev;
+
+ ut_assertok(uclass_get_device(UCLASS_RNG, 0, &dev));
+ ut_assertnonnull(dev);
+
+ ut_assertok(console_record_reset_enable());
+
+ run_command("rng", 0);
+ ut_assert_nextlinen("00000000:");
+ ut_assert_nextlinen("00000010:");
+ ut_assert_nextlinen("00000020:");
+ ut_assert_nextlinen("00000030:");
+ ut_assert_console_end();
+
+ run_command("rng 0 10", 0);
+ ut_assert_nextlinen("00000000:");
+ ut_assert_console_end();
+
+ run_command("rng 20", 0);
+ ut_assert_nextlinen("No RNG device");
+ ut_assert_console_end();
+
+ return 0;
+}
+DM_TEST(dm_test_rng_cmd, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT | UT_TESTF_CONSOLE_REC);
--
2.34.1
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