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of: Add a testcase for of_find_node_by_path() 

Add a testcase for the find_node_by_path() function to make sure it
handles all the valid scenarios.

Signed-off-by: Grant Likely <grant.likely@linaro.org>
hifive-unleashed-5.1
Grant Likely 2014-03-14 13:53:10 +00:00
parent c22e650e66
commit ae91ff72e9
2 changed files with 51 additions and 1 deletions
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46
drivers/of/selftest.c
View File

@ -31,6 +31,51 @@ static struct selftest_results {
} \
}
static void __init of_selftest_find_node_by_name(void)
{
struct device_node *np;
np = of_find_node_by_path("/testcase-data");
selftest(np && !strcmp("/testcase-data", np->full_name),
"find /testcase-data failed\n");
of_node_put(np);
/* Test if trailing '/' works */
np = of_find_node_by_path("/testcase-data/");
selftest(!np, "trailing '/' on /testcase-data/ should fail\n");
np = of_find_node_by_path("/testcase-data/phandle-tests/consumer-a");
selftest(np && !strcmp("/testcase-data/phandle-tests/consumer-a", np->full_name),
"find /testcase-data/phandle-tests/consumer-a failed\n");
of_node_put(np);
np = of_find_node_by_path("testcase-alias");
selftest(np && !strcmp("/testcase-data", np->full_name),
"find testcase-alias failed\n");
of_node_put(np);
/* Test if trailing '/' works on aliases */
np = of_find_node_by_path("testcase-alias/");
selftest(!np, "trailing '/' on testcase-alias/ should fail\n");
np = of_find_node_by_path("testcase-alias/phandle-tests/consumer-a");
selftest(np && !strcmp("/testcase-data/phandle-tests/consumer-a", np->full_name),
"find testcase-alias/phandle-tests/consumer-a failed\n");
of_node_put(np);
np = of_find_node_by_path("/testcase-data/missing-path");
selftest(!np, "non-existent path returned node %s\n", np->full_name);
of_node_put(np);
np = of_find_node_by_path("missing-alias");
selftest(!np, "non-existent alias returned node %s\n", np->full_name);
of_node_put(np);
np = of_find_node_by_path("testcase-alias/missing-path");
selftest(!np, "non-existent alias with relative path returned node %s\n", np->full_name);
of_node_put(np);
}
static void __init of_selftest_dynamic(void)
{
struct device_node *np;
@ -484,6 +529,7 @@ static int __init of_selftest(void)
of_node_put(np);
pr_info("start of selftest - you will see error messages\n");
of_selftest_find_node_by_name();
of_selftest_dynamic();
of_selftest_parse_phandle_with_args();
of_selftest_property_match_string();

6
drivers/of/testcase-data/tests-phandle.dtsi
View File

@ -1,6 +1,10 @@
/ {
testcase-data {
aliases {
testcase-alias = &testcase;
};
testcase: testcase-data {
security-password = "password";
duplicate-name = "duplicate";
duplicate-name { };