DO NOT COMMIT: Implement HPACK (draft 03)

net/spdy/http2_decompressor_unittest.cc

Index: net/spdy/http2_decompressor_unittest.cc
diff --git a/net/spdy/http2_decompressor_unittest.cc b/net/spdy/http2_decompressor_unittest.cc
new file mode 100644
index 0000000000000000000000000000000000000000..de1c360a41d0563e4fe47590448fde3f222d00a7
--- /dev/null
+++ b/net/spdy/http2_decompressor_unittest.cc
@@ -0,0 +1,191 @@
+// Copyright 2013 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 "net/spdy/http2_decompressor.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace net {
+namespace {
+
+class Http2DecompressorTest : public ::testing::Test {
+};
+
+TEST_F(Http2DecompressorTest, Simple) {
+  Http2Decompressor decompressor;
+  SpdyNameValueBlock expected_name_value_block;
+  expected_name_value_block["name1"] = "value1";
+  expected_name_value_block["name2"] = "value2";
+  expected_name_value_block["name3"] = "value3";
+
+  std::string encoded;
+  encoded.append(1, 0x60);
+  encoded.append(1, 0x05);
+  encoded.append("name1");
+  encoded.append(1, 0x06);
+  encoded.append("value1");
+  encoded.append(1, 0x60);
+  encoded.append(1, 0x05);
+  encoded.append("name2");
+  encoded.append(1, 0x06);
+  encoded.append("value2");
+  encoded.append(1, 0x60);
+  encoded.append(1, 0x05);
+  encoded.append("name3");
+  encoded.append(1, 0x06);
+  encoded.append("value3");
+
+  SpdyNameValueBlock name_value_block;
+  EXPECT_TRUE(decompressor.DecodeNameValueBlock(encoded.data(),
+                                                encoded.size(),
+                                                &name_value_block));
+  EXPECT_EQ(expected_name_value_block, name_value_block);
+}
+
+TEST_F(Http2DecompressorTest, Long) {
+  Http2Decompressor decompressor;
+  SpdyNameValueBlock expected_name_value_block;
+  std::string name(1000, 'n');
+  std::string value(10000, 'v');
+  expected_name_value_block[name] = value;
+
+  std::string encoded;
+  encoded.append(1, 0x60);
+  encoded.append(1, 0x80 | 104);
+  encoded.append(1, 7);
+  encoded.append(name);
+  encoded.append(1, 0x80 | 16);
+  encoded.append(1, 78);
+  encoded.append(value);
+
+  SpdyNameValueBlock name_value_block;
+  EXPECT_TRUE(decompressor.DecodeNameValueBlock(encoded.data(),
+                                                encoded.size(),
+                                                &name_value_block));
+  EXPECT_EQ(expected_name_value_block, name_value_block);
+}
+
+TEST_F(Http2DecompressorTest, PreExisting) {
+  Http2Decompressor decompressor;
+  SpdyNameValueBlock expected_name_value_block;
+  expected_name_value_block[":status"] = "200";
+  expected_name_value_block["www-authenticate"] = "";
+
+  std::string encoded;
+  // :status
+  encoded.append(1, 0x80 | 0);
+  // www-authenticate
+  encoded.append(1, 0x80 | 34);
+
+  SpdyNameValueBlock name_value_block;
+  EXPECT_TRUE(decompressor.DecodeNameValueBlock(encoded.data(),
+                                                encoded.size(),
+                                                &name_value_block));
+  EXPECT_EQ(expected_name_value_block, name_value_block);
+}
+
+TEST_F(Http2DecompressorTest, DifferentialSimple) {
+  Http2Decompressor decompressor;
+  SpdyNameValueBlock expected_name_value_block;
+  expected_name_value_block["name1"] = "value1";
+  expected_name_value_block["name2"] = "value2";
+
+  {
+    std::string encoded;
+    // name1 is indexed.
+    encoded.append(1, 0x40);
+    encoded.append(1, 0x05);
+    encoded.append("name1");
+    encoded.append(1, 0x06);
+    encoded.append("value1");
+
+    // name2 is not indexed.
+    encoded.append(1, 0x60);
+    encoded.append(1, 0x05);
+    encoded.append("name2");
+    encoded.append(1, 0x06);
+    encoded.append("value2");
+
+    SpdyNameValueBlock name_value_block;
+    EXPECT_TRUE(decompressor.DecodeNameValueBlock(encoded.data(),
+                                                  encoded.size(),
+                                                  &name_value_block));
+    EXPECT_EQ(expected_name_value_block, name_value_block);
+  }
+
+  {
+    expected_name_value_block.erase("name2");
+    SpdyNameValueBlock name_value_block;
+    EXPECT_TRUE(decompressor.DecodeNameValueBlock(NULL,
+                                                  0,
+                                                  &name_value_block));
+    EXPECT_EQ(expected_name_value_block, name_value_block);
+  }
+}
+
+TEST_F(Http2DecompressorTest, DifferentialPreExisting) {
+  Http2Decompressor decompressor;
+  SpdyNameValueBlock expected_name_value_block;
+  expected_name_value_block[":status"] = "200";
+  expected_name_value_block["www-authenticate"] = "";
+
+  {
+    std::string encoded;
+    // :status
+    encoded.append(1, 0x80 | 0);
+    // www-authenticate
+    encoded.append(1, 0x80 | 34);
+
+    SpdyNameValueBlock name_value_block;
+    EXPECT_TRUE(decompressor.DecodeNameValueBlock(encoded.data(),
+                                                  encoded.size(),
+                                                  &name_value_block));
+    EXPECT_EQ(expected_name_value_block, name_value_block);
+  }
+
+  {
+    SpdyNameValueBlock name_value_block;
+    EXPECT_TRUE(decompressor.DecodeNameValueBlock(NULL,
+                                                  0,
+                                                  &name_value_block));
+    EXPECT_EQ(expected_name_value_block, name_value_block);
+  }
+}
+
+TEST_F(Http2DecompressorTest, DifferentialToggle) {
+  Http2Decompressor decompressor;
+  SpdyNameValueBlock expected_name_value_block;
+  expected_name_value_block["name1"] = "value1";
+
+  {
+    std::string encoded;
+    // name1 is indexed.
+    encoded.append(1, 0x40);
+    encoded.append(1, 0x05);
+    encoded.append("name1");
+    encoded.append(1, 0x06);
+    encoded.append("value1");
+
+    SpdyNameValueBlock name_value_block;
+    EXPECT_TRUE(decompressor.DecodeNameValueBlock(encoded.data(),
+                                                  encoded.size(),
+                                                  &name_value_block));
+    EXPECT_EQ(expected_name_value_block, name_value_block);
+  }
+
+  {
+    std::string encoded;
+    // Toggle name1.
+    encoded.append(1, 0x80 | 35);
+
+    expected_name_value_block.erase("name1");
+    SpdyNameValueBlock name_value_block;
+    EXPECT_TRUE(decompressor.DecodeNameValueBlock(encoded.data(),
+                                                  encoded.size(),
+                                                  &name_value_block));
+    EXPECT_EQ(expected_name_value_block, name_value_block);
+  }
+}
+
+}  // namespace
+}  // namespace net