79 lines
2.1 KiB
C
Executable File
79 lines
2.1 KiB
C
Executable File
// SPDX-License-Identifier: GPL-2.0
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/*
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* KUnit test for strerror and strerror_r
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*
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* Copyright (C) 2019, Google LLC.
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* Author: Mike Krinkin <krinkin@google.com>
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*/
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#include <linux/err.h>
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#include <kunit/strerror.h>
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#include <kunit/test.h>
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static void test_strerror_returns_null_for_unknown_errors(struct kunit *test)
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{
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KUNIT_EXPECT_PTR_EQ(test, strerror_str(-1), NULL);
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KUNIT_EXPECT_PTR_EQ(test, strerror_str(MAX_ERRNO + 1), NULL);
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}
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static void test_strerror_r_returns_null_if_buflen_is_zero(struct kunit *test)
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{
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KUNIT_EXPECT_PTR_EQ(test, strerror_r(-1, NULL, 0), NULL);
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}
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static void test_strerror_returns_string(struct kunit *test)
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{
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const char *err;
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char buf[64];
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err = strerror_str(EAGAIN);
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KUNIT_ASSERT_PTR_NE(test, err, NULL);
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KUNIT_EXPECT_STREQ(test, err, "EAGAIN");
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err = strerror_r(EAGAIN, buf, sizeof(buf));
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KUNIT_ASSERT_PTR_NE(test, err, NULL);
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KUNIT_EXPECT_STREQ(test, err, "EAGAIN");
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}
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static void test_strerror_r_correctly_truncates_message_to_buffer_size(
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struct kunit *test)
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{
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const char *err;
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char buf[64];
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err = strerror_r(EAGAIN, buf, 1);
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KUNIT_ASSERT_PTR_NE(test, err, NULL);
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KUNIT_EXPECT_EQ(test, strlen(err), 0);
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err = strerror_r(EAGAIN, buf, 2);
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KUNIT_ASSERT_PTR_NE(test, err, NULL);
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KUNIT_EXPECT_EQ(test, strlen(err), 1);
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err = strerror_r(EAGAIN, buf, sizeof(buf));
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KUNIT_ASSERT_PTR_NE(test, err, NULL);
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KUNIT_EXPECT_STREQ(test, err, "EAGAIN");
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}
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static void test_strerror_r_returns_string_for_unknown_errors(struct kunit *test)
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{
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char buf[64];
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KUNIT_EXPECT_PTR_NE(test, strerror_r(-1, buf, sizeof(buf)), NULL);
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KUNIT_EXPECT_PTR_NE(test, strerror_r(MAX_ERRNO + 1, buf, sizeof(buf)), NULL);
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}
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static struct kunit_case strerror_test_cases[] = {
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KUNIT_CASE(test_strerror_returns_null_for_unknown_errors),
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KUNIT_CASE(test_strerror_r_returns_null_if_buflen_is_zero),
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KUNIT_CASE(test_strerror_returns_string),
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KUNIT_CASE(test_strerror_r_correctly_truncates_message_to_buffer_size),
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KUNIT_CASE(test_strerror_r_returns_string_for_unknown_errors),
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{},
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};
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static struct kunit_suite strerror_test_module = {
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.name = "strerror-test",
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.test_cases = strerror_test_cases,
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};
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kunit_test_suites(&strerror_test_module);
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