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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134// SPDX-License-Identifier: GPL-2.0/* * KUnit tests for HFS string operations * * Copyright (C) 2025 Viacheslav Dubeyko <slava@dubeyko.com> */
#include <kunit/test.h>#include <linux/dcache.h>#include "hfs_fs.h"
/* Test hfs_strcmp function */static void hfs_strcmp_test(struct kunit *test){ /* Test equal strings */ KUNIT_EXPECT_EQ(test, 0, hfs_strcmp("hello", 5, "hello", 5)); KUNIT_EXPECT_EQ(test, 0, hfs_strcmp("test", 4, "test", 4)); KUNIT_EXPECT_EQ(test, 0, hfs_strcmp("", 0, "", 0));
/* Test unequal strings */ KUNIT_EXPECT_NE(test, 0, hfs_strcmp("hello", 5, "world", 5)); KUNIT_EXPECT_NE(test, 0, hfs_strcmp("test", 4, "testing", 7));
/* Test different lengths */ KUNIT_EXPECT_LT(test, hfs_strcmp("test", 4, "testing", 7), 0); KUNIT_EXPECT_GT(test, hfs_strcmp("testing", 7, "test", 4), 0);
/* Test case insensitive comparison (HFS should handle case) */ KUNIT_EXPECT_EQ(test, 0, hfs_strcmp("Test", 4, "TEST", 4)); KUNIT_EXPECT_EQ(test, 0, hfs_strcmp("hello", 5, "HELLO", 5));
/* Test with special characters */ KUNIT_EXPECT_EQ(test, 0, hfs_strcmp("file.txt", 8, "file.txt", 8)); KUNIT_EXPECT_NE(test, 0, hfs_strcmp("file.txt", 8, "file.dat", 8));
/* Test boundary cases */ KUNIT_EXPECT_EQ(test, 0, hfs_strcmp("a", 1, "a", 1)); KUNIT_EXPECT_NE(test, 0, hfs_strcmp("a", 1, "b", 1));}
/* Test hfs_hash_dentry function */static void hfs_hash_dentry_test(struct kunit *test){ struct qstr test_name1, test_name2, test_name3; struct dentry dentry = {}; char name1[] = "testfile"; char name2[] = "TestFile"; char name3[] = "different";
/* Initialize test strings */ test_name1.name = name1; test_name1.len = strlen(name1); test_name1.hash = 0;
test_name2.name = name2; test_name2.len = strlen(name2); test_name2.hash = 0;
test_name3.name = name3; test_name3.len = strlen(name3); test_name3.hash = 0;
/* Test hashing */ KUNIT_EXPECT_EQ(test, 0, hfs_hash_dentry(&dentry, &test_name1)); KUNIT_EXPECT_EQ(test, 0, hfs_hash_dentry(&dentry, &test_name2)); KUNIT_EXPECT_EQ(test, 0, hfs_hash_dentry(&dentry, &test_name3));
/* Case insensitive names should hash the same */ KUNIT_EXPECT_EQ(test, test_name1.hash, test_name2.hash);
/* Different names should have different hashes */ KUNIT_EXPECT_NE(test, test_name1.hash, test_name3.hash);}
/* Test hfs_compare_dentry function */static void hfs_compare_dentry_test(struct kunit *test){ struct qstr test_name; struct dentry dentry = {}; char name[] = "TestFile";
test_name.name = name; test_name.len = strlen(name);
/* Test exact match */ KUNIT_EXPECT_EQ(test, 0, hfs_compare_dentry(&dentry, 8, "TestFile", &test_name));
/* Test case insensitive match */ KUNIT_EXPECT_EQ(test, 0, hfs_compare_dentry(&dentry, 8, "testfile", &test_name)); KUNIT_EXPECT_EQ(test, 0, hfs_compare_dentry(&dentry, 8, "TESTFILE", &test_name));
/* Test different names */ KUNIT_EXPECT_EQ(test, 1, hfs_compare_dentry(&dentry, 8, "DiffFile", &test_name));
/* Test different lengths */ KUNIT_EXPECT_EQ(test, 1, hfs_compare_dentry(&dentry, 7, "TestFil", &test_name)); KUNIT_EXPECT_EQ(test, 1, hfs_compare_dentry(&dentry, 9, "TestFiles", &test_name));
/* Test empty string */ test_name.name = ""; test_name.len = 0; KUNIT_EXPECT_EQ(test, 0, hfs_compare_dentry(&dentry, 0, "", &test_name));
/* Test HFS_NAMELEN boundary */ test_name.name = "This_is_a_very_long_filename_that_exceeds_normal_limits"; test_name.len = strlen(test_name.name); KUNIT_EXPECT_EQ(test, 0, hfs_compare_dentry(&dentry, HFS_NAMELEN, "This_is_a_very_long_filename_th", &test_name));}
static struct kunit_case hfs_string_test_cases[] = { KUNIT_CASE(hfs_strcmp_test), KUNIT_CASE(hfs_hash_dentry_test), KUNIT_CASE(hfs_compare_dentry_test), {}};
static struct kunit_suite hfs_string_test_suite = { .name = "hfs_string", .test_cases = hfs_string_test_cases,};
kunit_test_suite(hfs_string_test_suite);
MODULE_DESCRIPTION("KUnit tests for HFS string operations");MODULE_LICENSE("GPL");MODULE_IMPORT_NS("EXPORTED_FOR_KUNIT_TESTING");