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65 lines
2.0 KiB
65 lines
2.0 KiB
4 months ago
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/*
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* Copyright (C) 2012 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#undef _GNU_SOURCE
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#include <features.h> // Get __BIONIC__ or __GLIBC__ so we can tell what we're using.
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#if defined(__GLIBC__)
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// At the time of writing, libcxx -- which is dragged in by gtest -- assumes
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// declarations from glibc of things that aren't available without _GNU_SOURCE.
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// This means we can't even build this test (which is a problem because that
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// means it doesn't get included in CTS).
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// For glibc 2.15, the symbols in question are:
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// at_quick_exit, quick_exit, vasprintf, strtoll_l, strtoull_l, and strtold_l.
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# if __GLIBC_PREREQ(2, 19)
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# error check whether we can build this now...
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# endif
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#else
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#include <string.h>
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#include <errno.h>
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#include <gtest/gtest.h>
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TEST(string, posix_strerror_r) {
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char buf[256];
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// Valid.
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ASSERT_EQ(0, strerror_r(0, buf, sizeof(buf)));
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ASSERT_STREQ("Success", buf);
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ASSERT_EQ(0, strerror_r(1, buf, sizeof(buf)));
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ASSERT_STREQ("Operation not permitted", buf);
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// Invalid.
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ASSERT_EQ(0, strerror_r(-1, buf, sizeof(buf)));
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ASSERT_STREQ("Unknown error -1", buf);
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ASSERT_EQ(0, strerror_r(1234, buf, sizeof(buf)));
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ASSERT_STREQ("Unknown error 1234", buf);
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// Buffer too small.
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errno = 0;
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memset(buf, 0, sizeof(buf));
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ASSERT_EQ(-1, strerror_r(4567, buf, 2));
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ASSERT_STREQ("U", buf);
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// The POSIX strerror_r sets errno to ERANGE (the GNU one doesn't).
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ASSERT_EQ(ERANGE, errno);
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}
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#endif
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