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Subject[RFC v3 10/19] kunit: test: add test managed resource tests
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Tests how tests interact with test managed resources in their lifetime.

Signed-off-by: Avinash Kondareddy <avikr@google.com>
Signed-off-by: Brendan Higgins <brendanhiggins@google.com>
---
kunit/test-test.c | 121 +++++++++++++++++++++++++++++++++++++++++-----
1 file changed, 110 insertions(+), 11 deletions(-)

diff --git a/kunit/test-test.c b/kunit/test-test.c
index 88b3bcf9c4e00..36fd95c90a26a 100644
--- a/kunit/test-test.c
+++ b/kunit/test-test.c
@@ -7,31 +7,130 @@
*/
#include <kunit/test.h>

-static void test_test_catches_segfault(struct kunit *test)
+static void kunit_test_catches_segfault(struct kunit *test)
{
void (*invalid_func)(void) = (void (*)(void)) SIZE_MAX;

KUNIT_ASSERT_SIGSEGV(test, invalid_func());
}

-static int test_test_init(struct kunit *test)
+/*
+ * Context for testing test managed resources
+ * is_resource_initialized is used to test arbitrary resources
+ */
+struct kunit_test_context {
+ struct kunit test;
+ bool is_resource_initialized;
+};
+
+static int fake_resource_init(struct kunit_resource *res, void *context)
{
+ struct kunit_test_context *ctx = context;
+
+ res->allocation = &ctx->is_resource_initialized;
+ ctx->is_resource_initialized = true;
return 0;
}

-static void test_test_exit(struct kunit *test)
+static void fake_resource_free(struct kunit_resource *res)
+{
+ bool *is_resource_initialized = res->allocation;
+
+ *is_resource_initialized = false;
+}
+
+static void kunit_test_init_resources(struct kunit *test)
+{
+ struct kunit_test_context *ctx = test->priv;
+
+ kunit_init_test(&ctx->test, "testing_test_init_test");
+
+ KUNIT_EXPECT_TRUE(test, list_empty(&ctx->test.resources));
+}
+
+static void kunit_test_alloc_resource(struct kunit *test)
+{
+ struct kunit_test_context *ctx = test->priv;
+ struct kunit_resource *res;
+ kunit_resource_free_t free = fake_resource_free;
+
+ res = kunit_alloc_resource(&ctx->test,
+ fake_resource_init,
+ fake_resource_free,
+ ctx);
+
+ KUNIT_ASSERT_NOT_ERR_OR_NULL(test, res);
+ KUNIT_EXPECT_EQ(test, &ctx->is_resource_initialized, res->allocation);
+ KUNIT_EXPECT_TRUE(test, list_is_last(&res->node, &ctx->test.resources));
+ KUNIT_EXPECT_EQ(test, free, res->free);
+}
+
+static void kunit_test_free_resource(struct kunit *test)
{
+ struct kunit_test_context *ctx = test->priv;
+ struct kunit_resource *res = kunit_alloc_resource(&ctx->test,
+ fake_resource_init,
+ fake_resource_free,
+ ctx);
+
+ kunit_free_resource(&ctx->test, res);
+
+ KUNIT_EXPECT_EQ(test, false, ctx->is_resource_initialized);
+ KUNIT_EXPECT_TRUE(test, list_empty(&ctx->test.resources));
+}
+
+static void kunit_test_cleanup_resources(struct kunit *test)
+{
+ int i;
+ const int num_res = 5;
+ struct kunit_test_context *ctx = test->priv;
+ struct kunit_resource *resources[num_res];
+
+ for (i = 0; i < num_res; i++) {
+ resources[i] = kunit_alloc_resource(&ctx->test,
+ fake_resource_init,
+ fake_resource_free,
+ ctx);
+ }
+
+ kunit_cleanup(&ctx->test);
+
+ KUNIT_EXPECT_TRUE(test, list_empty(&ctx->test.resources));
+}
+
+static int kunit_test_init(struct kunit *test)
+{
+ struct kunit_test_context *ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+
+ if (!ctx)
+ return -ENOMEM;
+ test->priv = ctx;
+
+ kunit_init_test(&ctx->test, "test_test_context");
+ return 0;
+}
+
+static void kunit_test_exit(struct kunit *test)
+{
+ struct kunit_test_context *ctx = test->priv;
+
+ kunit_cleanup(&ctx->test);
+ kfree(ctx);
}

-static struct kunit_case test_test_cases[] = {
- KUNIT_CASE(test_test_catches_segfault),
+static struct kunit_case kunit_test_cases[] = {
+ KUNIT_CASE(kunit_test_catches_segfault),
+ KUNIT_CASE(kunit_test_init_resources),
+ KUNIT_CASE(kunit_test_alloc_resource),
+ KUNIT_CASE(kunit_test_free_resource),
+ KUNIT_CASE(kunit_test_cleanup_resources),
{},
};

-static struct kunit_module test_test_module = {
- .name = "test-test",
- .init = test_test_init,
- .exit = test_test_exit,
- .test_cases = test_test_cases,
+static struct kunit_module kunit_test_module = {
+ .name = "kunit-test",
+ .init = kunit_test_init,
+ .exit = kunit_test_exit,
+ .test_cases = kunit_test_cases,
};
-module_test(test_test_module);
+module_test(kunit_test_module);
--
2.20.0.rc0.387.gc7a69e6b6c-goog
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