1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
|
// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "base/android/jni_bytebuffer.h"
#include <stddef.h>
#include <stdint.h>
#include <algorithm>
#include <limits>
#include "base/android/jni_android.h"
#include "base/android/jni_string.h"
#include "base/android/scoped_java_ref.h"
#include "base/containers/span.h"
#include "base/strings/utf_string_conversions.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace base::android {
TEST(JniByteBuffer, ConversionDoesNotCopy) {
uint8_t bytes[] = {0, 1, 2, 3};
JNIEnv* env = AttachCurrentThread();
ScopedJavaLocalRef<jobject> jbuffer(
env, env->NewDirectByteBuffer(bytes, sizeof(bytes)));
ASSERT_TRUE(jbuffer);
base::span<const uint8_t> span = JavaByteBufferToSpan(env, jbuffer.obj());
EXPECT_EQ(span.data(), bytes);
EXPECT_EQ(span.size(), sizeof(bytes));
}
// Disabled pending diagnosis: https://crbug.com/1521406
// Specifically, under test, env->GetDirectBufferAddress() is returning non-null
// and env->GetDirectBufferCapacity() is returning >= 0, both of which they are
// not supposed to do in this situation.
TEST(JniByteBuffer, DISABLED_ConversionFromNonBuffer) {
JNIEnv* env = AttachCurrentThread();
jclass cls = env->FindClass("java/util/ArrayList");
ASSERT_TRUE(cls);
jmethodID init =
base::android::MethodID::Get<base::android::MethodID::TYPE_INSTANCE>(
env, cls, "<init>", "()V");
ScopedJavaLocalRef<jobject> jnonbuffer(env, env->NewObject(cls, init));
std::optional<base::span<const uint8_t>> maybe_span =
MaybeJavaByteBufferToSpan(env, jnonbuffer.obj());
EXPECT_FALSE(maybe_span.has_value());
}
TEST(JniByteBuffer, ZeroByteConversionSucceeds) {
JNIEnv* env = AttachCurrentThread();
ScopedJavaLocalRef<jobject> jbuffer(env,
env->NewDirectByteBuffer(nullptr, 0));
ASSERT_TRUE(jbuffer);
base::span<const uint8_t> span = JavaByteBufferToSpan(env, jbuffer.obj());
EXPECT_EQ(span.data(), nullptr);
EXPECT_EQ(span.size(), 0u);
}
} // namespace base::android
|
