resource: Add test cases for new resource API (5df38ca6) · Commits · 戴 / test

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

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