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// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/android/jni_array.h"
#include "base/android/jni_android.h"
#include "base/android/scoped_java_ref.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace base {
namespace android {
TEST(JniArray, BasicConversions) {
const uint8 kBytes[] = { 0, 1, 2, 3 };
const size_t kLen = arraysize(kBytes);
JNIEnv* env = AttachCurrentThread();
ScopedJavaLocalRef<jbyteArray> bytes = ToJavaByteArray(env, kBytes, kLen);
ASSERT_TRUE(bytes.obj());
std::vector<uint8> vec(5);
JavaByteArrayToByteVector(env, bytes.obj(), &vec);
EXPECT_EQ(4U, vec.size());
EXPECT_EQ(std::vector<uint8>(kBytes, kBytes + kLen), vec);
AppendJavaByteArrayToByteVector(env, bytes.obj(), &vec);
EXPECT_EQ(8U, vec.size());
}
TEST(JniArray, JavaArrayOfByteArrayToStringVector) {
const int kMaxItems = 50;
JNIEnv* env = AttachCurrentThread();
// Create a byte[][] object.
ScopedJavaLocalRef<jclass> byte_array_clazz(env, env->FindClass("[B"));
ASSERT_TRUE(byte_array_clazz.obj());
ScopedJavaLocalRef<jobjectArray> array(
env, env->NewObjectArray(kMaxItems, byte_array_clazz.obj(), NULL));
ASSERT_TRUE(array.obj());
// Create kMaxItems byte buffers.
char text[16];
for (int i = 0; i < kMaxItems; ++i) {
snprintf(text, sizeof text, "%d", i);
ScopedJavaLocalRef<jbyteArray> byte_array = ToJavaByteArray(
env, reinterpret_cast<uint8*>(text),
static_cast<size_t>(strlen(text)));
ASSERT_TRUE(byte_array.obj());
env->SetObjectArrayElement(array.obj(), i, byte_array.obj());
ASSERT_FALSE(HasException(env));
}
// Convert to std::vector<std::string>, check the content.
std::vector<std::string> vec;
JavaArrayOfByteArrayToStringVector(env, array.obj(), &vec);
EXPECT_EQ(static_cast<size_t>(kMaxItems), vec.size());
for (int i = 0; i < kMaxItems; ++i) {
snprintf(text, sizeof text, "%d", i);
EXPECT_STREQ(text, vec[i].c_str());
}
}
} // namespace android
} // namespace base
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