Revert "Create libbase."

Breaks internal master.

This reverts commit 98ff77204cef9bb8f0f27420833233622060a09e.

Change-Id: I18dc6021cb43efff8aa88486c2d980dc2b8eedba

3 files changed, 158 insertions, 0 deletions

diff --git a/libutils/tests/Android.mk b/libutils/tests/Android.mk
index 634f44f..ce288ca 100644
--- a/libutils/tests/Android.mk
+++ b/libutils/tests/Android.mk
@@ -26,9 +26,11 @@ LOCAL_SRC_FILES := \
     BasicHashtable_test.cpp \
     BlobCache_test.cpp \
     BitSet_test.cpp \
+    file_test.cpp \
     Looper_test.cpp \
     LruCache_test.cpp \
     String8_test.cpp \
+    stringprintf_test.cpp \
     Unicode_test.cpp \
     Vector_test.cpp \
 
diff --git a/libutils/tests/file_test.cpp b/libutils/tests/file_test.cpp
new file mode 100644
index 0000000..cea18b6
--- /dev/null
+++ b/libutils/tests/file_test.cpp
@@ -0,0 +1,98 @@
+/*
+ * 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 <errno.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <gtest/gtest.h>
+
+class TemporaryFile {
+ public:
+  TemporaryFile() {
+    init("/data/local/tmp");
+    if (fd == -1) {
+      init("/tmp");
+    }
+  }
+
+  ~TemporaryFile() {
+    close(fd);
+    unlink(filename);
+  }
+
+  int fd;
+  char filename[1024];
+
+ private:
+  void init(const char* tmp_dir) {
+    snprintf(filename, sizeof(filename), "%s/TemporaryFile-XXXXXX", tmp_dir);
+    fd = mkstemp(filename);
+  }
+};
+
+TEST(file, ReadFileToString_ENOENT) {
+  std::string s("hello");
+  errno = 0;
+  ASSERT_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");
+  ASSERT_TRUE(android::ReadFileToString("/proc/version", &s)) << errno;
+  EXPECT_GT(s.length(), 6U);
+  EXPECT_EQ('\n', s[s.length() - 1]);
+  s[5] = 0;
+  EXPECT_STREQ("Linux", s.c_str());
+}
+
+TEST(file, WriteStringToFile) {
+  TemporaryFile tf;
+  ASSERT_TRUE(tf.fd != -1);
+  ASSERT_TRUE(android::WriteStringToFile("abc", tf.filename)) << errno;
+  std::string s;
+  ASSERT_TRUE(android::ReadFileToString(tf.filename, &s)) << errno;
+  EXPECT_EQ("abc", s);
+}
+
+TEST(file, WriteStringToFile2) {
+  TemporaryFile tf;
+  ASSERT_TRUE(tf.fd != -1);
+  ASSERT_TRUE(android::WriteStringToFile("abc", tf.filename, 0660, getuid(), getgid())) << errno;
+  struct stat sb;
+  ASSERT_EQ(0, stat(tf.filename, &sb));
+  ASSERT_EQ(0660U, (sb.st_mode & ~S_IFMT));
+  ASSERT_EQ(getuid(), sb.st_uid);
+  ASSERT_EQ(getgid(), sb.st_gid);
+  std::string s;
+  ASSERT_TRUE(android::ReadFileToString(tf.filename, &s)) << errno;
+  EXPECT_EQ("abc", s);
+}
+
+TEST(file, WriteStringToFd) {
+  TemporaryFile tf;
+  ASSERT_TRUE(tf.fd != -1);
+  ASSERT_TRUE(android::WriteStringToFd("abc", tf.fd));
+
+  ASSERT_EQ(0, lseek(tf.fd, 0, SEEK_SET)) << errno;
+
+  std::string s;
+  ASSERT_TRUE(android::ReadFdToString(tf.fd, &s)) << errno;
+  EXPECT_EQ("abc", s);
+}
diff --git a/libutils/tests/stringprintf_test.cpp b/libutils/tests/stringprintf_test.cpp
new file mode 100644
index 0000000..f995452
--- /dev/null
+++ b/libutils/tests/stringprintf_test.cpp
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2011 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/stringprintf.h>
+
+#include <gtest/gtest.h>
+
+TEST(StringPrintfTest, HexSizeT) {
+  size_t size = 0x00107e59;
+  EXPECT_EQ("00107e59", android::StringPrintf("%08zx", size));
+  EXPECT_EQ("0x00107e59", android::StringPrintf("0x%08zx", size));
+}
+
+TEST(StringPrintfTest, StringAppendF) {
+  std::string s("a");
+  android::StringAppendF(&s, "b");
+  EXPECT_EQ("ab", s);
+}
+
+TEST(StringPrintfTest, Errno) {
+  errno = 123;
+  android::StringPrintf("hello %s", "world");
+  EXPECT_EQ(123, errno);
+}
+
+void TestN(size_t n) {
+  char* buf = new char[n + 1];
+  memset(buf, 'x', n);
+  buf[n] = '\0';
+  std::string s(android::StringPrintf("%s", buf));
+  EXPECT_EQ(buf, s);
+  delete[] buf;
+}
+
+TEST(StringPrintfTest, At1023) {
+  TestN(1023);
+}
+
+TEST(StringPrintfTest, At1024) {
+  TestN(1024);
+}
+
+TEST(StringPrintfTest, At1025) {
+  TestN(1025);
+}