test: cmd: fdt: Add fdt get value test case

Add test case for 'fdt get value' sub command.

The test case can be triggered using:
"
./u-boot -d u-boot.dtb -c 'ut fdt'
"

Acked-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Signed-off-by: Marek Vasut <marex@denx.de>

1 files changed, 53 insertions, 0 deletions

diff --git a/test/cmd/fdt.c b/test/cmd/fdt.c
index ba9eaa42c1..7974c88c0d 100644
--- a/test/cmd/fdt.c
+++ b/test/cmd/fdt.c
@@ -142,6 +142,59 @@ static int fdt_test_resize(struct unit_test_state *uts)
 }
 FDT_TEST(fdt_test_resize, UT_TESTF_CONSOLE_REC);
 
+/* Test 'fdt get' reading an fdt */
+static int fdt_test_get(struct unit_test_state *uts)
+{
+	ulong addr;
+
+	addr = map_to_sysmem(gd->fdt_blob);
+	set_working_fdt_addr(addr);
+
+	/* Test getting default element of /clk-test node clock-names property */
+	ut_assertok(console_record_reset_enable());
+	ut_assertok(run_command("fdt get value fdflt /clk-test clock-names", 0));
+	ut_asserteq_str("fixed", env_get("fdflt"));
+	ut_assertok(ut_check_console_end(uts));
+
+	/* Test getting 0th element of /clk-test node clock-names property */
+	ut_assertok(console_record_reset_enable());
+	ut_assertok(run_command("fdt get value fzero /clk-test clock-names 0", 0));
+	ut_asserteq_str("fixed", env_get("fzero"));
+	ut_assertok(ut_check_console_end(uts));
+
+	/* Test getting 1st element of /clk-test node clock-names property */
+	ut_assertok(console_record_reset_enable());
+	ut_assertok(run_command("fdt get value fone /clk-test clock-names 1", 0));
+	ut_asserteq_str("i2c", env_get("fone"));
+	ut_assertok(ut_check_console_end(uts));
+
+	/* Test getting 2nd element of /clk-test node clock-names property */
+	ut_assertok(console_record_reset_enable());
+	ut_assertok(run_command("fdt get value ftwo /clk-test clock-names 2", 0));
+	ut_asserteq_str("spi", env_get("ftwo"));
+	ut_assertok(ut_check_console_end(uts));
+
+	/* Test missing 10th element of /clk-test node clock-names property */
+	ut_assertok(console_record_reset_enable());
+	ut_asserteq(1, run_command("fdt get value ftwo /clk-test clock-names 10", 0));
+	ut_assertok(ut_check_console_end(uts));
+
+	/* Test getting default element of /clk-test node nonexistent property */
+	ut_assertok(console_record_reset_enable());
+	ut_asserteq(1, run_command("fdt get value fnone /clk-test nonexistent", 1));
+	ut_assert_nextline("libfdt fdt_getprop(): FDT_ERR_NOTFOUND");
+	ut_assertok(ut_check_console_end(uts));
+
+	/* Test getting default element of /nonexistent node */
+	ut_assertok(console_record_reset_enable());
+	ut_asserteq(1, run_command("fdt get value fnode /nonexistent nonexistent", 1));
+	ut_assert_nextline("libfdt fdt_path_offset() returned FDT_ERR_NOTFOUND");
+	ut_assertok(ut_check_console_end(uts));
+
+	return 0;
+}
+FDT_TEST(fdt_test_get, UT_TESTF_CONSOLE_REC);
+
 int do_ut_fdt(struct cmd_tbl *cmdtp, int flag, int argc, char *const argv[])
 {
 	struct unit_test *tests = UNIT_TEST_SUITE_START(fdt_test);