43 lines
1.2 KiB
C++
43 lines
1.2 KiB
C++
/*
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* Copyright (C) 2015 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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#include "util.h"
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#include <errno.h>
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#include <gtest/gtest.h>
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TEST(util, read_file_ENOENT) {
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std::string s("hello");
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errno = 0;
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EXPECT_FALSE(read_file("/proc/does-not-exist", &s));
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EXPECT_EQ(ENOENT, errno);
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EXPECT_EQ("", s); // s was cleared.
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}
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TEST(util, read_file_success) {
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std::string s("hello");
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EXPECT_TRUE(read_file("/proc/version", &s));
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EXPECT_GT(s.length(), 6U);
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EXPECT_EQ('\n', s[s.length() - 1]);
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s[5] = 0;
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EXPECT_STREQ("Linux", s.c_str());
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}
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TEST(util, decode_uid) {
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EXPECT_EQ(0U, decode_uid("root"));
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EXPECT_EQ(-1U, decode_uid("toot"));
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EXPECT_EQ(123U, decode_uid("123"));
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}
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