Commit 5df38ca6 authored by Andy Shevchenko's avatar Andy Shevchenko Committed by Rafael J. Wysocki
Browse files

resource: Add test cases for new resource API 



Add test cases for newly added resource APIs.

Signed-off-by: default avatarAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent f65674df

kernel/Makefile

+1 −0
Original line number Diff line number Diff line
@@ -123,6 +123,7 @@ obj-$(CONFIG_HAS_IOMEM) += iomem.o 
obj-$(CONFIG_RSEQ) += rseq.o

obj-$(CONFIG_WATCH_QUEUE) += watch_queue.o



obj-$(CONFIG_RESOURCE_KUNIT_TEST) += resource_kunit.o

obj-$(CONFIG_SYSCTL_KUNIT_TEST) += sysctl-test.o



CFLAGS_stackleak.o += $(DISABLE_STACKLEAK_PLUGIN)

kernel/resource_kunit.c

0 → 100644
+150 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0+

/*

 * Test cases for API provided by resource.c and ioport.h

 */



#include <kunit/test.h>

#include <linux/ioport.h>

#include <linux/kernel.h>

#include <linux/string.h>



#define R0_START	0x0000

#define R0_END		0xffff

#define R1_START	0x1234

#define R1_END		0x2345

#define R2_START	0x4567

#define R2_END		0x5678

#define R3_START	0x6789

#define R3_END		0x789a

#define R4_START	0x2000

#define R4_END		0x7000



static struct resource r0 = { .start = R0_START, .end = R0_END };

static struct resource r1 = { .start = R1_START, .end = R1_END };

static struct resource r2 = { .start = R2_START, .end = R2_END };

static struct resource r3 = { .start = R3_START, .end = R3_END };

static struct resource r4 = { .start = R4_START, .end = R4_END };



struct result {

	struct resource *r1;

	struct resource *r2;

	struct resource r;

	bool ret;

};



static struct result results_for_union[] = {

	{

		.r1 = &r1, .r2 = &r0, .r.start = R0_START, .r.end = R0_END, .ret = true,

	}, {

		.r1 = &r2, .r2 = &r0, .r.start = R0_START, .r.end = R0_END, .ret = true,

	}, {

		.r1 = &r3, .r2 = &r0, .r.start = R0_START, .r.end = R0_END, .ret = true,

	}, {

		.r1 = &r4, .r2 = &r0, .r.start = R0_START, .r.end = R0_END, .ret = true,

	}, {

		.r1 = &r2, .r2 = &r1, .ret = false,

	}, {

		.r1 = &r3, .r2 = &r1, .ret = false,

	}, {

		.r1 = &r4, .r2 = &r1, .r.start = R1_START, .r.end = R4_END, .ret = true,

	}, {

		.r1 = &r2, .r2 = &r3, .ret = false,

	}, {

		.r1 = &r2, .r2 = &r4, .r.start = R4_START, .r.end = R4_END, .ret = true,

	}, {

		.r1 = &r3, .r2 = &r4, .r.start = R4_START, .r.end = R3_END, .ret = true,

	},

};



static struct result results_for_intersection[] = {

	{

		.r1 = &r1, .r2 = &r0, .r.start = R1_START, .r.end = R1_END, .ret = true,

	}, {

		.r1 = &r2, .r2 = &r0, .r.start = R2_START, .r.end = R2_END, .ret = true,

	}, {

		.r1 = &r3, .r2 = &r0, .r.start = R3_START, .r.end = R3_END, .ret = true,

	}, {

		.r1 = &r4, .r2 = &r0, .r.start = R4_START, .r.end = R4_END, .ret = true,

	}, {

		.r1 = &r2, .r2 = &r1, .ret = false,

	}, {

		.r1 = &r3, .r2 = &r1, .ret = false,

	}, {

		.r1 = &r4, .r2 = &r1, .r.start = R4_START, .r.end = R1_END, .ret = true,

	}, {

		.r1 = &r2, .r2 = &r3, .ret = false,

	}, {

		.r1 = &r2, .r2 = &r4, .r.start = R2_START, .r.end = R2_END, .ret = true,

	}, {

		.r1 = &r3, .r2 = &r4, .r.start = R3_START, .r.end = R4_END, .ret = true,

	},

};



static void resource_do_test(struct kunit *test, bool ret, struct resource *r,

			     bool exp_ret, struct resource *exp_r,

			     struct resource *r1, struct resource *r2)

{

	KUNIT_EXPECT_EQ_MSG(test, ret, exp_ret, "Resources %pR %pR", r1, r2);

	KUNIT_EXPECT_EQ_MSG(test, r->start, exp_r->start, "Start elements are not equal");

	KUNIT_EXPECT_EQ_MSG(test, r->end, exp_r->end, "End elements are not equal");

}



static void resource_do_union_test(struct kunit *test, struct result *r)

{

	struct resource result;

	bool ret;



	memset(&result, 0, sizeof(result));

	ret = resource_union(r->r1, r->r2, &result);

	resource_do_test(test, ret, &result, r->ret, &r->r, r->r1, r->r2);



	memset(&result, 0, sizeof(result));

	ret = resource_union(r->r2, r->r1, &result);

	resource_do_test(test, ret, &result, r->ret, &r->r, r->r2, r->r1);

}



static void resource_test_union(struct kunit *test)

{

	struct result *r = results_for_union;

	unsigned int i = 0;



	do {

		resource_do_union_test(test, &r[i]);

	} while (++i < ARRAY_SIZE(results_for_union));

}



static void resource_do_intersection_test(struct kunit *test, struct result *r)

{

	struct resource result;

	bool ret;



	memset(&result, 0, sizeof(result));

	ret = resource_intersection(r->r1, r->r2, &result);

	resource_do_test(test, ret, &result, r->ret, &r->r, r->r1, r->r2);



	memset(&result, 0, sizeof(result));

	ret = resource_intersection(r->r2, r->r1, &result);

	resource_do_test(test, ret, &result, r->ret, &r->r, r->r2, r->r1);

}



static void resource_test_intersection(struct kunit *test)

{

	struct result *r = results_for_intersection;

	unsigned int i = 0;



	do {

		resource_do_intersection_test(test, &r[i]);

	} while (++i < ARRAY_SIZE(results_for_intersection));

}



static struct kunit_case resource_test_cases[] = {

	KUNIT_CASE(resource_test_union),

	KUNIT_CASE(resource_test_intersection),

	{}

};



static struct kunit_suite resource_test_suite = {

	.name = "resource",

	.test_cases = resource_test_cases,

};

kunit_test_suite(resource_test_suite);

lib/Kconfig.debug

+11 −0
Original line number Diff line number Diff line
@@ -2226,6 +2226,17 @@ config BITFIELD_KUNIT 


	  If unsure, say N.



config RESOURCE_KUNIT_TEST

	tristate "KUnit test for resource API"

	depends on KUNIT

	help

	  This builds the resource API unit test.

	  Tests the logic of API provided by resource.c and ioport.h.

	  For more information on KUnit and unit tests in general please refer

	  to the KUnit documentation in Documentation/dev-tools/kunit/.



	  If unsure, say N.



config SYSCTL_KUNIT_TEST

	tristate "KUnit test for sysctl" if !KUNIT_ALL_TESTS

	depends on KUNIT