Add Google-style StringPrintf.
Change-Id: If333c28b8ed047346a2dd85e591c4bedbab874cc
diff --git a/libutils/tests/Android.mk b/libutils/tests/Android.mk
index 03d5342..ce288ca 100644
--- a/libutils/tests/Android.mk
+++ b/libutils/tests/Android.mk
@@ -30,6 +30,7 @@
Looper_test.cpp \
LruCache_test.cpp \
String8_test.cpp \
+ stringprintf_test.cpp \
Unicode_test.cpp \
Vector_test.cpp \
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);
+}