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-rw-r--r--third_party/libwebrtc/rtc_base/byte_buffer_unittest.cc250
1 files changed, 250 insertions, 0 deletions
diff --git a/third_party/libwebrtc/rtc_base/byte_buffer_unittest.cc b/third_party/libwebrtc/rtc_base/byte_buffer_unittest.cc
new file mode 100644
index 0000000000..4f8043c98f
--- /dev/null
+++ b/third_party/libwebrtc/rtc_base/byte_buffer_unittest.cc
@@ -0,0 +1,250 @@
+/*
+ * Copyright 2004 The WebRTC Project Authors. All rights reserved.
+ *
+ * Use of this source code is governed by a BSD-style license
+ * that can be found in the LICENSE file in the root of the source
+ * tree. An additional intellectual property rights grant can be found
+ * in the file PATENTS. All contributing project authors may
+ * be found in the AUTHORS file in the root of the source tree.
+ */
+
+#include "rtc_base/byte_buffer.h"
+
+#include <string.h>
+
+#include "rtc_base/arraysize.h"
+#include "rtc_base/byte_order.h"
+#include "test/gtest.h"
+
+namespace rtc {
+
+TEST(ByteBufferTest, TestByteOrder) {
+ uint16_t n16 = 1;
+ uint32_t n32 = 1;
+ uint64_t n64 = 1;
+
+ EXPECT_EQ(n16, NetworkToHost16(HostToNetwork16(n16)));
+ EXPECT_EQ(n32, NetworkToHost32(HostToNetwork32(n32)));
+ EXPECT_EQ(n64, NetworkToHost64(HostToNetwork64(n64)));
+
+ if (IsHostBigEndian()) {
+ // The host is the network (big) endian.
+ EXPECT_EQ(n16, HostToNetwork16(n16));
+ EXPECT_EQ(n32, HostToNetwork32(n32));
+ EXPECT_EQ(n64, HostToNetwork64(n64));
+
+ // GetBE converts big endian to little endian here.
+ EXPECT_EQ(n16 >> 8, GetBE16(&n16));
+ EXPECT_EQ(n32 >> 24, GetBE32(&n32));
+ EXPECT_EQ(n64 >> 56, GetBE64(&n64));
+ } else {
+ // The host is little endian.
+ EXPECT_NE(n16, HostToNetwork16(n16));
+ EXPECT_NE(n32, HostToNetwork32(n32));
+ EXPECT_NE(n64, HostToNetwork64(n64));
+
+ // GetBE converts little endian to big endian here.
+ EXPECT_EQ(GetBE16(&n16), HostToNetwork16(n16));
+ EXPECT_EQ(GetBE32(&n32), HostToNetwork32(n32));
+ EXPECT_EQ(GetBE64(&n64), HostToNetwork64(n64));
+
+ // GetBE converts little endian to big endian here.
+ EXPECT_EQ(n16 << 8, GetBE16(&n16));
+ EXPECT_EQ(n32 << 24, GetBE32(&n32));
+ EXPECT_EQ(n64 << 56, GetBE64(&n64));
+ }
+}
+
+TEST(ByteBufferTest, TestBufferLength) {
+ ByteBufferWriter buffer;
+ size_t size = 0;
+ EXPECT_EQ(size, buffer.Length());
+
+ buffer.WriteUInt8(1);
+ ++size;
+ EXPECT_EQ(size, buffer.Length());
+
+ buffer.WriteUInt16(1);
+ size += 2;
+ EXPECT_EQ(size, buffer.Length());
+
+ buffer.WriteUInt24(1);
+ size += 3;
+ EXPECT_EQ(size, buffer.Length());
+
+ buffer.WriteUInt32(1);
+ size += 4;
+ EXPECT_EQ(size, buffer.Length());
+
+ buffer.WriteUInt64(1);
+ size += 8;
+ EXPECT_EQ(size, buffer.Length());
+}
+
+TEST(ByteBufferTest, TestReadWriteBuffer) {
+ ByteBufferWriter buffer;
+ ByteBufferReader read_buf(nullptr, 0);
+ uint8_t ru8;
+ EXPECT_FALSE(read_buf.ReadUInt8(&ru8));
+
+ // Write and read uint8_t.
+ uint8_t wu8 = 1;
+ buffer.WriteUInt8(wu8);
+ ByteBufferReader read_buf1(buffer.Data(), buffer.Length());
+ EXPECT_TRUE(read_buf1.ReadUInt8(&ru8));
+ EXPECT_EQ(wu8, ru8);
+ EXPECT_EQ(0U, read_buf1.Length());
+ buffer.Clear();
+
+ // Write and read uint16_t.
+ uint16_t wu16 = (1 << 8) + 1;
+ buffer.WriteUInt16(wu16);
+ ByteBufferReader read_buf2(buffer.Data(), buffer.Length());
+ uint16_t ru16;
+ EXPECT_TRUE(read_buf2.ReadUInt16(&ru16));
+ EXPECT_EQ(wu16, ru16);
+ EXPECT_EQ(0U, read_buf2.Length());
+ buffer.Clear();
+
+ // Write and read uint24.
+ uint32_t wu24 = (3 << 16) + (2 << 8) + 1;
+ buffer.WriteUInt24(wu24);
+ ByteBufferReader read_buf3(buffer.Data(), buffer.Length());
+ uint32_t ru24;
+ EXPECT_TRUE(read_buf3.ReadUInt24(&ru24));
+ EXPECT_EQ(wu24, ru24);
+ EXPECT_EQ(0U, read_buf3.Length());
+ buffer.Clear();
+
+ // Write and read uint32_t.
+ uint32_t wu32 = (4 << 24) + (3 << 16) + (2 << 8) + 1;
+ buffer.WriteUInt32(wu32);
+ ByteBufferReader read_buf4(buffer.Data(), buffer.Length());
+ uint32_t ru32;
+ EXPECT_TRUE(read_buf4.ReadUInt32(&ru32));
+ EXPECT_EQ(wu32, ru32);
+ EXPECT_EQ(0U, read_buf3.Length());
+ buffer.Clear();
+
+ // Write and read uint64_t.
+ uint32_t another32 = (8 << 24) + (7 << 16) + (6 << 8) + 5;
+ uint64_t wu64 = (static_cast<uint64_t>(another32) << 32) + wu32;
+ buffer.WriteUInt64(wu64);
+ ByteBufferReader read_buf5(buffer.Data(), buffer.Length());
+ uint64_t ru64;
+ EXPECT_TRUE(read_buf5.ReadUInt64(&ru64));
+ EXPECT_EQ(wu64, ru64);
+ EXPECT_EQ(0U, read_buf5.Length());
+ buffer.Clear();
+
+ // Write and read string.
+ std::string write_string("hello");
+ buffer.WriteString(write_string);
+ ByteBufferReader read_buf6(buffer.Data(), buffer.Length());
+ std::string read_string;
+ EXPECT_TRUE(read_buf6.ReadString(&read_string, write_string.size()));
+ EXPECT_EQ(write_string, read_string);
+ EXPECT_EQ(0U, read_buf6.Length());
+ buffer.Clear();
+
+ // Write and read bytes
+ char write_bytes[] = "foo";
+ buffer.WriteBytes(write_bytes, 3);
+ ByteBufferReader read_buf7(buffer.Data(), buffer.Length());
+ char read_bytes[3];
+ EXPECT_TRUE(read_buf7.ReadBytes(read_bytes, 3));
+ for (int i = 0; i < 3; ++i) {
+ EXPECT_EQ(write_bytes[i], read_bytes[i]);
+ }
+ EXPECT_EQ(0U, read_buf7.Length());
+ buffer.Clear();
+
+ // Write and read reserved buffer space
+ char* write_dst = buffer.ReserveWriteBuffer(3);
+ memcpy(write_dst, write_bytes, 3);
+ ByteBufferReader read_buf8(buffer.Data(), buffer.Length());
+ memset(read_bytes, 0, 3);
+ EXPECT_TRUE(read_buf8.ReadBytes(read_bytes, 3));
+ for (int i = 0; i < 3; ++i) {
+ EXPECT_EQ(write_bytes[i], read_bytes[i]);
+ }
+ EXPECT_EQ(0U, read_buf8.Length());
+ buffer.Clear();
+
+ // Write and read in order.
+ buffer.WriteUInt8(wu8);
+ buffer.WriteUInt16(wu16);
+ buffer.WriteUInt24(wu24);
+ buffer.WriteUInt32(wu32);
+ buffer.WriteUInt64(wu64);
+ ByteBufferReader read_buf9(buffer.Data(), buffer.Length());
+ EXPECT_TRUE(read_buf9.ReadUInt8(&ru8));
+ EXPECT_EQ(wu8, ru8);
+ EXPECT_TRUE(read_buf9.ReadUInt16(&ru16));
+ EXPECT_EQ(wu16, ru16);
+ EXPECT_TRUE(read_buf9.ReadUInt24(&ru24));
+ EXPECT_EQ(wu24, ru24);
+ EXPECT_TRUE(read_buf9.ReadUInt32(&ru32));
+ EXPECT_EQ(wu32, ru32);
+ EXPECT_TRUE(read_buf9.ReadUInt64(&ru64));
+ EXPECT_EQ(wu64, ru64);
+ EXPECT_EQ(0U, read_buf9.Length());
+ buffer.Clear();
+}
+
+TEST(ByteBufferTest, TestReadWriteUVarint) {
+ ByteBufferWriter write_buffer;
+ size_t size = 0;
+ EXPECT_EQ(size, write_buffer.Length());
+
+ write_buffer.WriteUVarint(1u);
+ ++size;
+ EXPECT_EQ(size, write_buffer.Length());
+
+ write_buffer.WriteUVarint(2u);
+ ++size;
+ EXPECT_EQ(size, write_buffer.Length());
+
+ write_buffer.WriteUVarint(27u);
+ ++size;
+ EXPECT_EQ(size, write_buffer.Length());
+
+ write_buffer.WriteUVarint(149u);
+ size += 2;
+ EXPECT_EQ(size, write_buffer.Length());
+
+ write_buffer.WriteUVarint(68719476736u);
+ size += 6;
+ EXPECT_EQ(size, write_buffer.Length());
+
+ ByteBufferReader read_buffer(write_buffer.Data(), write_buffer.Length());
+ EXPECT_EQ(size, read_buffer.Length());
+ uint64_t val1, val2, val3, val4, val5;
+
+ ASSERT_TRUE(read_buffer.ReadUVarint(&val1));
+ EXPECT_EQ(1u, val1);
+ --size;
+ EXPECT_EQ(size, read_buffer.Length());
+
+ ASSERT_TRUE(read_buffer.ReadUVarint(&val2));
+ EXPECT_EQ(2u, val2);
+ --size;
+ EXPECT_EQ(size, read_buffer.Length());
+
+ ASSERT_TRUE(read_buffer.ReadUVarint(&val3));
+ EXPECT_EQ(27u, val3);
+ --size;
+ EXPECT_EQ(size, read_buffer.Length());
+
+ ASSERT_TRUE(read_buffer.ReadUVarint(&val4));
+ EXPECT_EQ(149u, val4);
+ size -= 2;
+ EXPECT_EQ(size, read_buffer.Length());
+
+ ASSERT_TRUE(read_buffer.ReadUVarint(&val5));
+ EXPECT_EQ(68719476736u, val5);
+ size -= 6;
+ EXPECT_EQ(size, read_buffer.Length());
+}
+
+} // namespace rtc