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// SPDX-License-Identifier: GPL-2.0
#include <kunit/test.h>
#include <kunit/test-bug.h>
#include <linux/module.h>
#include <linux/miscdevice.h>
/* dynamic minor (2) */
static struct miscdevice dev_dynamic_minor = {
.minor = 2,
.name = "dev_dynamic_minor",
};
/* static minor (LCD_MINOR) */
static struct miscdevice dev_static_minor = {
.minor = LCD_MINOR,
.name = "dev_static_minor",
};
/* misc dynamic minor */
static struct miscdevice dev_misc_dynamic_minor = {
.minor = MISC_DYNAMIC_MINOR,
.name = "dev_misc_dynamic_minor",
};
static void kunit_dynamic_minor(struct kunit *test)
{
int ret;
ret = misc_register(&dev_dynamic_minor);
KUNIT_EXPECT_EQ(test, 0, ret);
KUNIT_EXPECT_EQ(test, 2, dev_dynamic_minor.minor);
misc_deregister(&dev_dynamic_minor);
}
static void kunit_static_minor(struct kunit *test)
{
int ret;
ret = misc_register(&dev_static_minor);
KUNIT_EXPECT_EQ(test, 0, ret);
KUNIT_EXPECT_EQ(test, LCD_MINOR, dev_static_minor.minor);
misc_deregister(&dev_static_minor);
}
static void kunit_misc_dynamic_minor(struct kunit *test)
{
int ret;
ret = misc_register(&dev_misc_dynamic_minor);
KUNIT_EXPECT_EQ(test, 0, ret);
misc_deregister(&dev_misc_dynamic_minor);
}
static struct kunit_case test_cases[] = {
KUNIT_CASE(kunit_dynamic_minor),
KUNIT_CASE(kunit_static_minor),
KUNIT_CASE(kunit_misc_dynamic_minor),
{}
};
static struct kunit_suite test_suite = {
.name = "misc_minor_test",
.test_cases = test_cases,
};
kunit_test_suite(test_suite);
MODULE_LICENSE("GPL");
MODULE_AUTHOR("Vimal Agrawal");
MODULE_DESCRIPTION("misc minor testing");
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