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Subject[RFC v3 19/19] of: unittest: split up some super large test cases
From
Split up the super large test cases of_unittest_find_node_by_name and
of_unittest_dynamic into properly sized and defined test cases.

Signed-off-by: Brendan Higgins <brendanhiggins@google.com>
---
drivers/of/base-test.c | 315 ++++++++++++++++++++++++++++++++++-------
1 file changed, 260 insertions(+), 55 deletions(-)

diff --git a/drivers/of/base-test.c b/drivers/of/base-test.c
index 5731787a3fca8..46c3dd9ce6628 100644
--- a/drivers/of/base-test.c
+++ b/drivers/of/base-test.c
@@ -8,10 +8,10 @@

#include "test-common.h"

-static void of_unittest_find_node_by_name(struct kunit *test)
+static void of_test_find_node_by_name_basic(struct kunit *test)
{
struct device_node *np;
- const char *options, *name;
+ const char *name;

np = of_find_node_by_path("/testcase-data");
name = kasprintf(GFP_KERNEL, "%pOF", np);
@@ -20,11 +20,21 @@ static void of_unittest_find_node_by_name(struct kunit *test)
"find /testcase-data failed\n");
of_node_put(np);
kfree(name);
+}

+static void of_test_find_node_by_name_trailing_slash(struct kunit *test)
+{
/* Test if trailing '/' works */
KUNIT_EXPECT_EQ_MSG(test, of_find_node_by_path("/testcase-data/"), NULL,
"trailing '/' on /testcase-data/ should fail\n");

+}
+
+static void of_test_find_node_by_name_multiple_components(struct kunit *test)
+{
+ struct device_node *np;
+ const char *name;
+
np = of_find_node_by_path("/testcase-data/phandle-tests/consumer-a");
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, np);
name = kasprintf(GFP_KERNEL, "%pOF", np);
@@ -33,6 +43,12 @@ static void of_unittest_find_node_by_name(struct kunit *test)
"find /testcase-data/phandle-tests/consumer-a failed\n");
of_node_put(np);
kfree(name);
+}
+
+static void of_test_find_node_by_name_with_alias(struct kunit *test)
+{
+ struct device_node *np;
+ const char *name;

np = of_find_node_by_path("testcase-alias");
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, np);
@@ -41,10 +57,23 @@ static void of_unittest_find_node_by_name(struct kunit *test)
"find testcase-alias failed\n");
of_node_put(np);
kfree(name);
+}

+static void of_test_find_node_by_name_with_alias_and_slash(struct kunit *test)
+{
/* Test if trailing '/' works on aliases */
KUNIT_EXPECT_EQ_MSG(test, of_find_node_by_path("testcase-alias/"), NULL,
- "trailing '/' on testcase-alias/ should fail\n");
+ "trailing '/' on testcase-alias/ should fail\n");
+}
+
+/*
+ * TODO(brendanhiggins@google.com): This looks like a duplicate of
+ * of_test_find_node_by_name_multiple_components
+ */
+static void of_test_find_node_by_name_multiple_components_2(struct kunit *test)
+{
+ struct device_node *np;
+ const char *name;

np = of_find_node_by_path("testcase-alias/phandle-tests/consumer-a");
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, np);
@@ -54,29 +83,60 @@ static void of_unittest_find_node_by_name(struct kunit *test)
"find testcase-alias/phandle-tests/consumer-a failed\n");
of_node_put(np);
kfree(name);
+}
+
+static void of_test_find_node_by_name_missing_path(struct kunit *test)
+{
+ struct device_node *np;

KUNIT_EXPECT_EQ_MSG(test,
- of_find_node_by_path("/testcase-data/missing-path"),
+ np = of_find_node_by_path(
+ "/testcase-data/missing-path"),
NULL,
- "non-existent path returned node %pOF\n", np);
+ "non-existent path returned node %pOF\n", np);
of_node_put(np);
+}

- KUNIT_EXPECT_EQ_MSG(test, of_find_node_by_path("missing-alias"), NULL,
- "non-existent alias returned node %pOF\n", np);
+static void of_test_find_node_by_name_missing_alias(struct kunit *test)
+{
+ struct device_node *np;
+
+ KUNIT_EXPECT_EQ_MSG(test,
+ np = of_find_node_by_path("missing-alias"), NULL,
+ "non-existent alias returned node %pOF\n", np);
of_node_put(np);
+}
+
+static void of_test_find_node_by_name_missing_alias_with_relative_path(
+ struct kunit *test)
+{
+ struct device_node *np;

KUNIT_EXPECT_EQ_MSG(test,
- of_find_node_by_path("testcase-alias/missing-path"),
+ np = of_find_node_by_path(
+ "testcase-alias/missing-path"),
NULL,
- "non-existent alias with relative path returned node %pOF\n",
- np);
+ "non-existent alias with relative path returned node %pOF\n",
+ np);
of_node_put(np);
+}
+
+static void of_test_find_node_by_name_with_option(struct kunit *test)
+{
+ struct device_node *np;
+ const char *options;

np = of_find_node_opts_by_path("/testcase-data:testoption", &options);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, np);
KUNIT_EXPECT_STREQ_MSG(test, "testoption", options,
"option path test failed\n");
of_node_put(np);
+}
+
+static void of_test_find_node_by_name_with_option_and_slash(struct kunit *test)
+{
+ struct device_node *np;
+ const char *options;

np = of_find_node_opts_by_path("/testcase-data:test/option", &options);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, np);
@@ -91,11 +151,22 @@ static void of_unittest_find_node_by_name(struct kunit *test)
KUNIT_EXPECT_STREQ_MSG(test, "test/option", options,
"option path test, subcase #2 failed\n");
of_node_put(np);
+}
+
+static void of_test_find_node_by_name_with_null_option(struct kunit *test)
+{
+ struct device_node *np;

np = of_find_node_opts_by_path("/testcase-data:testoption", NULL);
KUNIT_EXPECT_NOT_ERR_OR_NULL_MSG(test, np,
"NULL option path test failed\n");
of_node_put(np);
+}
+
+static void of_test_find_node_by_name_with_option_alias(struct kunit *test)
+{
+ struct device_node *np;
+ const char *options;

np = of_find_node_opts_by_path("testcase-alias:testaliasoption",
&options);
@@ -103,6 +174,13 @@ static void of_unittest_find_node_by_name(struct kunit *test)
KUNIT_EXPECT_STREQ_MSG(test, "testaliasoption", options,
"option alias path test failed\n");
of_node_put(np);
+}
+
+static void of_test_find_node_by_name_with_option_alias_and_slash(
+ struct kunit *test)
+{
+ struct device_node *np;
+ const char *options;

np = of_find_node_opts_by_path("testcase-alias:test/alias/option",
&options);
@@ -110,11 +188,22 @@ static void of_unittest_find_node_by_name(struct kunit *test)
KUNIT_EXPECT_STREQ_MSG(test, "test/alias/option", options,
"option alias path test, subcase #1 failed\n");
of_node_put(np);
+}
+
+static void of_test_find_node_by_name_with_null_option_alias(struct kunit *test)
+{
+ struct device_node *np;

np = of_find_node_opts_by_path("testcase-alias:testaliasoption", NULL);
- KUNIT_EXPECT_NOT_ERR_OR_NULL_MSG(test, np,
- "NULL option alias path test failed\n");
+ KUNIT_EXPECT_NOT_ERR_OR_NULL_MSG(
+ test, np, "NULL option alias path test failed\n");
of_node_put(np);
+}
+
+static void of_test_find_node_by_name_option_clearing(struct kunit *test)
+{
+ struct device_node *np;
+ const char *options;

options = "testoption";
np = of_find_node_opts_by_path("testcase-alias", &options);
@@ -122,6 +211,12 @@ static void of_unittest_find_node_by_name(struct kunit *test)
KUNIT_EXPECT_EQ_MSG(test, options, NULL,
"option clearing test failed\n");
of_node_put(np);
+}
+
+static void of_test_find_node_by_name_option_clearing_root(struct kunit *test)
+{
+ struct device_node *np;
+ const char *options;

options = "testoption";
np = of_find_node_opts_by_path("/", &options);
@@ -131,64 +226,147 @@ static void of_unittest_find_node_by_name(struct kunit *test)
of_node_put(np);
}

-static void of_unittest_dynamic(struct kunit *test)
+static int of_test_find_node_by_name_init(struct kunit *test)
{
+ /* adding data for unittest */
+ KUNIT_ASSERT_EQ(test, 0, unittest_data_add());
+
+ if (!of_aliases)
+ of_aliases = of_find_node_by_path("/aliases");
+
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, of_find_node_by_path(
+ "/testcase-data/phandle-tests/consumer-a"));
+
+ return 0;
+}
+
+static struct kunit_case of_test_find_node_by_name_cases[] = {
+ KUNIT_CASE(of_test_find_node_by_name_basic),
+ KUNIT_CASE(of_test_find_node_by_name_trailing_slash),
+ KUNIT_CASE(of_test_find_node_by_name_multiple_components),
+ KUNIT_CASE(of_test_find_node_by_name_with_alias),
+ KUNIT_CASE(of_test_find_node_by_name_with_alias_and_slash),
+ KUNIT_CASE(of_test_find_node_by_name_multiple_components_2),
+ KUNIT_CASE(of_test_find_node_by_name_missing_path),
+ KUNIT_CASE(of_test_find_node_by_name_missing_alias),
+ KUNIT_CASE(of_test_find_node_by_name_missing_alias_with_relative_path),
+ KUNIT_CASE(of_test_find_node_by_name_with_option),
+ KUNIT_CASE(of_test_find_node_by_name_with_option_and_slash),
+ KUNIT_CASE(of_test_find_node_by_name_with_null_option),
+ KUNIT_CASE(of_test_find_node_by_name_with_option_alias),
+ KUNIT_CASE(of_test_find_node_by_name_with_option_alias_and_slash),
+ KUNIT_CASE(of_test_find_node_by_name_with_null_option_alias),
+ KUNIT_CASE(of_test_find_node_by_name_option_clearing),
+ KUNIT_CASE(of_test_find_node_by_name_option_clearing_root),
+ {},
+};
+
+static struct kunit_module of_test_find_node_by_name_module = {
+ .name = "of-test-find-node-by-name",
+ .init = of_test_find_node_by_name_init,
+ .test_cases = of_test_find_node_by_name_cases,
+};
+module_test(of_test_find_node_by_name_module);
+
+struct of_test_dynamic_context {
struct device_node *np;
- struct property *prop;
+ struct property *prop0;
+ struct property *prop1;
+};

- np = of_find_node_by_path("/testcase-data");
- KUNIT_ASSERT_NOT_ERR_OR_NULL(test, np);
+static void of_test_dynamic_basic(struct kunit *test)
+{
+ struct of_test_dynamic_context *ctx = test->priv;
+ struct device_node *np = ctx->np;
+ struct property *prop0 = ctx->prop0;

- /* Array of 4 properties for the purpose of testing */
- prop = kcalloc(4, sizeof(*prop), GFP_KERNEL);
- KUNIT_ASSERT_NOT_ERR_OR_NULL(test, prop);
+ /* Add a new property - should pass*/
+ prop0->name = "new-property";
+ prop0->value = "new-property-data";
+ prop0->length = strlen(prop0->value) + 1;
+ KUNIT_EXPECT_EQ_MSG(test, of_add_property(np, prop0), 0,
+ "Adding a new property failed\n");
+
+ /* Test that we can remove a property */
+ KUNIT_EXPECT_EQ(test, of_remove_property(np, prop0), 0);
+}
+
+static void of_test_dynamic_add_existing_property(struct kunit *test)
+{
+ struct of_test_dynamic_context *ctx = test->priv;
+ struct device_node *np = ctx->np;
+ struct property *prop0 = ctx->prop0, *prop1 = ctx->prop1;

/* Add a new property - should pass*/
- prop->name = "new-property";
- prop->value = "new-property-data";
- prop->length = strlen(prop->value) + 1;
- KUNIT_EXPECT_EQ_MSG(test, of_add_property(np, prop), 0,
+ prop0->name = "new-property";
+ prop0->value = "new-property-data";
+ prop0->length = strlen(prop0->value) + 1;
+ KUNIT_EXPECT_EQ_MSG(test, of_add_property(np, prop0), 0,
"Adding a new property failed\n");

/* Try to add an existing property - should fail */
- prop++;
- prop->name = "new-property";
- prop->value = "new-property-data-should-fail";
- prop->length = strlen(prop->value) + 1;
- KUNIT_EXPECT_NE_MSG(test, of_add_property(np, prop), 0,
+ prop1->name = "new-property";
+ prop1->value = "new-property-data-should-fail";
+ prop1->length = strlen(prop1->value) + 1;
+ KUNIT_EXPECT_NE_MSG(test, of_add_property(np, prop1), 0,
"Adding an existing property should have failed\n");
+}
+
+static void of_test_dynamic_modify_existing_property(struct kunit *test)
+{
+ struct of_test_dynamic_context *ctx = test->priv;
+ struct device_node *np = ctx->np;
+ struct property *prop0 = ctx->prop0, *prop1 = ctx->prop1;
+
+ /* Add a new property - should pass*/
+ prop0->name = "new-property";
+ prop0->value = "new-property-data";
+ prop0->length = strlen(prop0->value) + 1;
+ KUNIT_EXPECT_EQ_MSG(test, of_add_property(np, prop0), 0,
+ "Adding a new property failed\n");

/* Try to modify an existing property - should pass */
- prop->value = "modify-property-data-should-pass";
- prop->length = strlen(prop->value) + 1;
- KUNIT_EXPECT_EQ_MSG(test, of_update_property(np, prop), 0,
+ prop1->name = "new-property";
+ prop1->value = "modify-property-data-should-pass";
+ prop1->length = strlen(prop1->value) + 1;
+ KUNIT_EXPECT_EQ_MSG(test, of_update_property(np, prop1), 0,
"Updating an existing property should have passed\n");
+}
+
+static void of_test_dynamic_modify_non_existent_property(struct kunit *test)
+{
+ struct of_test_dynamic_context *ctx = test->priv;
+ struct device_node *np = ctx->np;
+ struct property *prop0 = ctx->prop0;

/* Try to modify non-existent property - should pass*/
- prop++;
- prop->name = "modify-property";
- prop->value = "modify-missing-property-data-should-pass";
- prop->length = strlen(prop->value) + 1;
- KUNIT_EXPECT_EQ_MSG(test, of_update_property(np, prop), 0,
+ prop0->name = "modify-property";
+ prop0->value = "modify-missing-property-data-should-pass";
+ prop0->length = strlen(prop0->value) + 1;
+ KUNIT_EXPECT_EQ_MSG(test, of_update_property(np, prop0), 0,
"Updating a missing property should have passed\n");
+}

- /* Remove property - should pass */
- KUNIT_EXPECT_EQ_MSG(test, of_remove_property(np, prop), 0,
- "Removing a property should have passed\n");
+static void of_test_dynamic_large_property(struct kunit *test)
+{
+ struct of_test_dynamic_context *ctx = test->priv;
+ struct device_node *np = ctx->np;
+ struct property *prop0 = ctx->prop0;

/* Adding very large property - should pass */
- prop++;
- prop->name = "large-property-PAGE_SIZEx8";
- prop->length = PAGE_SIZE * 8;
- prop->value = kzalloc(prop->length, GFP_KERNEL);
- KUNIT_ASSERT_NOT_ERR_OR_NULL(test, prop->value);
- KUNIT_EXPECT_EQ_MSG(test, of_add_property(np, prop), 0,
+ prop0->name = "large-property-PAGE_SIZEx8";
+ prop0->length = PAGE_SIZE * 8;
+ prop0->value = kunit_kzalloc(test, prop0->length, GFP_KERNEL);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, prop0->value);
+
+ KUNIT_EXPECT_EQ_MSG(test, of_add_property(np, prop0), 0,
"Adding a large property should have passed\n");
}

-static int of_test_init(struct kunit *test)
+static int of_test_dynamic_init(struct kunit *test)
{
- /* adding data for unittest */
+ struct of_test_dynamic_context *ctx;
+
KUNIT_ASSERT_EQ(test, 0, unittest_data_add());

if (!of_aliases)
@@ -197,18 +375,45 @@ static int of_test_init(struct kunit *test)
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, of_find_node_by_path(
"/testcase-data/phandle-tests/consumer-a"));

+ ctx = kunit_kzalloc(test, sizeof(*ctx), GFP_KERNEL);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx);
+ test->priv = ctx;
+
+ ctx->np = of_find_node_by_path("/testcase-data");
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx->np);
+
+ ctx->prop0 = kunit_kzalloc(test, sizeof(*ctx->prop0), GFP_KERNEL);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx->prop0);
+
+ ctx->prop1 = kunit_kzalloc(test, sizeof(*ctx->prop1), GFP_KERNEL);
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, ctx->prop1);
+
return 0;
}

-static struct kunit_case of_test_cases[] = {
- KUNIT_CASE(of_unittest_find_node_by_name),
- KUNIT_CASE(of_unittest_dynamic),
+static void of_test_dynamic_exit(struct kunit *test)
+{
+ struct of_test_dynamic_context *ctx = test->priv;
+ struct device_node *np = ctx->np;
+
+ of_remove_property(np, ctx->prop0);
+ of_remove_property(np, ctx->prop1);
+ of_node_put(np);
+}
+
+static struct kunit_case of_test_dynamic_cases[] = {
+ KUNIT_CASE(of_test_dynamic_basic),
+ KUNIT_CASE(of_test_dynamic_add_existing_property),
+ KUNIT_CASE(of_test_dynamic_modify_existing_property),
+ KUNIT_CASE(of_test_dynamic_modify_non_existent_property),
+ KUNIT_CASE(of_test_dynamic_large_property),
{},
};

-static struct kunit_module of_test_module = {
- .name = "of-base-test",
- .init = of_test_init,
- .test_cases = of_test_cases,
+static struct kunit_module of_test_dynamic_module = {
+ .name = "of-dynamic-test",
+ .init = of_test_dynamic_init,
+ .exit = of_test_dynamic_exit,
+ .test_cases = of_test_dynamic_cases,
};
-module_test(of_test_module);
+module_test(of_test_dynamic_module);
--
2.20.0.rc0.387.gc7a69e6b6c-goog
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