From dec12b2b71ec73483f9a2267ee5717d7eb0cdf6d Mon Sep 17 00:00:00 2001 From: Elliott Hughes Date: Mon, 2 Feb 2015 17:31:27 -0800 Subject: Add Google-style ReadFileToString and WriteStringToFile. Bug: 19217569 Change-Id: I64789d3fa6777ee30a324cdf00fdc275c1230e1b --- libutils/tests/file_test.cpp | 37 +++++++++++++++++++++++++++++++++++++ 1 file changed, 37 insertions(+) create mode 100644 libutils/tests/file_test.cpp (limited to 'libutils/tests/file_test.cpp') diff --git a/libutils/tests/file_test.cpp b/libutils/tests/file_test.cpp new file mode 100644 index 000000000..acf66a69f --- /dev/null +++ b/libutils/tests/file_test.cpp @@ -0,0 +1,37 @@ +/* + * Copyright (C) 2013 The Android Open Source Project + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +#include "utils/file.h" + +#include +#include + +TEST(file, ReadFileToString_ENOENT) { + std::string s("hello"); + errno = 0; + EXPECT_FALSE(android::ReadFileToString("/proc/does-not-exist", &s)); + EXPECT_EQ(ENOENT, errno); + EXPECT_EQ("", s); // s was cleared. +} + +TEST(file, ReadFileToString_success) { + std::string s("hello"); + EXPECT_TRUE(android::ReadFileToString("/proc/version", &s)); + EXPECT_GT(s.length(), 6U); + EXPECT_EQ('\n', s[s.length() - 1]); + s[5] = 0; + EXPECT_STREQ("Linux", s.c_str()); +} -- cgit v1.2.3