Move Courgette...

third_party/courgette/streams_unittest.cc

-// Copyright (c) 2009 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 "third_party/courgette/streams.h"
-
-#include "testing/gtest/include/gtest/gtest.h"
-
-TEST(StreamsTest, SimpleWriteRead) {
-  const unsigned int kValue1 = 12345;
-  courgette::SinkStream sink;
-
-  sink.WriteVarint32(kValue1);
-
-  const uint8* sink_buffer = sink.Buffer();
-  size_t length = sink.Length();
-
-  courgette::SourceStream source;
-  source.Init(sink_buffer, length);
-
-  unsigned int value;
-  bool can_read = source.ReadVarint32(&value);
-  EXPECT_EQ(true, can_read);
-  EXPECT_EQ(kValue1, value);
-  EXPECT_EQ(0, source.Remaining());
-}
-
-TEST(StreamsTest, SimpleWriteRead2) {
-  courgette::SinkStream sink;
-
-  sink.Write("Hello", 5);
-
-  const uint8* sink_buffer = sink.Buffer();
-  size_t sink_length = sink.Length();
-
-  courgette::SourceStream source;
-  source.Init(sink_buffer, sink_length);
-
-  char text[10] = {0};
-  bool can_read = source.Read(text, 5);
-  EXPECT_EQ(true, can_read);
-  EXPECT_EQ(0, memcmp("Hello", text, 5));
-  EXPECT_EQ(0, source.Remaining());
-}
-
-TEST(StreamsTest, StreamSetWriteRead) {
-  courgette::SinkStreamSet out;
-  out.Init(4);
-
-  const unsigned int kValue1 = 12345;
-
-  out.stream(3)->WriteVarint32(kValue1);
-
-  courgette::SinkStream collected;
-
-  out.CopyTo(&collected);
-
-  const uint8* collected_buffer = collected.Buffer();
-  size_t collected_length = collected.Length();
-
-  courgette::SourceStreamSet in;
-  bool can_init = in.Init(collected_buffer, collected_length);
-  EXPECT_EQ(true, can_init);
-
-  uint32 value;
-  bool can_read = in.stream(3)->ReadVarint32(&value);
-  EXPECT_EQ(true, can_read);
-  EXPECT_EQ(kValue1, value);
-  EXPECT_EQ(0, in.stream(3)->Remaining());
-  EXPECT_EQ(0, in.stream(2)->Remaining());
-}
-
-TEST(StreamsTest, StreamSetWriteRead2) {
-  const size_t kNumberOfStreams = 4;
-  const unsigned int kEnd = ~0U;
-
-  courgette::SinkStreamSet out;
-  out.Init(kNumberOfStreams);
-
-  static const unsigned int data[] = {
-    3, 123,  3, 1000,  0, 100, 2, 100,  0, 999999,
-    0, 0,  0, 0,  1, 2,  1, 3,  1, 5,  0, 66,
-    // varint32 edge case values:
-    1, 127,  1, 128,  1, 129,  1, 16383,  1, 16384,
-    kEnd
-  };
-
-  for (size_t i = 0;  data[i] != kEnd;  i += 2) {
-    size_t id = data[i];
-    size_t datum = data[i + 1];
-    out.stream(id)->WriteVarint32(datum);
-  }
-
-  courgette::SinkStream collected;
-
-  out.CopyTo(&collected);
-
-  courgette::SourceStreamSet in;
-  bool can_init = in.Init(collected.Buffer(), collected.Length());
-  EXPECT_EQ(true, can_init);
-
-  for (size_t i = 0;  data[i] != kEnd;  i += 2) {
-    size_t id = data[i];
-    size_t datum = data[i + 1];
-    uint32 value = 77;
-    bool can_read = in.stream(id)->ReadVarint32(&value);
-    EXPECT_EQ(true, can_read);
-    EXPECT_EQ(datum, value);
-  }
-
-  for (size_t i = 0;  i < kNumberOfStreams;  ++i) {
-    EXPECT_EQ(0, in.stream(i)->Remaining());
-  }
-}
-
-TEST(StreamsTest, SignedVarint32) {
-  courgette::SinkStream out;
-
-  static const int32 data[] = {
-    0, 64, 128, 8192, 16384,
-    1 << 20, 1 << 21, 1 << 22,
-    1 << 27, 1 << 28,
-    0x7fffffff, -0x7fffffff
-  };
-
-  std::vector<int32> values;
-  for (size_t i = 0;  i < sizeof(data)/sizeof(data[0]);  ++i) {
-    int32 basis = data[i];
-    for (int delta = -4; delta <= 4; ++delta) {
-      out.WriteVarint32Signed(basis + delta);
-      values.push_back(basis + delta);
-      out.WriteVarint32Signed(-basis + delta);
-      values.push_back(-basis + delta);
-    }
-  }
-
-  courgette::SourceStream in;
-  in.Init(out);
-
-  for (size_t i = 0;  i < values.size();  ++i) {
-    int written_value = values[i];
-    int32 datum;
-    bool can_read = in.ReadVarint32Signed(&datum);
-    EXPECT_EQ(written_value, datum);
-  }
-
-  EXPECT_EQ(true, in.Empty());
-}
-
-TEST(StreamsTest, StreamSetReadWrite) {
-  courgette::SinkStreamSet out;
-
-  { // Local scope for temporary stream sets.
-    courgette::SinkStreamSet subset1;
-    subset1.stream(3)->WriteVarint32(30000);
-    subset1.stream(5)->WriteVarint32(50000);
-    out.WriteSet(&subset1);
-
-    courgette::SinkStreamSet subset2;
-    subset2.stream(2)->WriteVarint32(20000);
-    subset2.stream(6)->WriteVarint32(60000);
-    out.WriteSet(&subset2);
-  }
-
-  courgette::SinkStream collected;
-  out.CopyTo(&collected);
-  courgette::SourceStreamSet in;
-  bool can_init_in = in.Init(collected.Buffer(), collected.Length());
-  EXPECT_EQ(true, can_init_in);
-
-  courgette::SourceStreamSet subset1;
-  bool can_read_1 = in.ReadSet(&subset1);
-  EXPECT_EQ(true, can_read_1);
-  EXPECT_EQ(false, in.Empty());
-
-  courgette::SourceStreamSet subset2;
-  bool can_read_2 = in.ReadSet(&subset2);
-  EXPECT_EQ(true, can_read_2);
-  EXPECT_EQ(true, in.Empty());
-
-  courgette::SourceStreamSet subset3;
-  bool can_read_3 = in.ReadSet(&subset3);
-  EXPECT_EQ(false, can_read_3);
-
-  EXPECT_EQ(false, subset1.Empty());
-  EXPECT_EQ(false, subset1.Empty());
-
-  uint32 datum;
-  EXPECT_EQ(true, subset1.stream(3)->ReadVarint32(&datum));
-  EXPECT_EQ(30000, datum);
-  EXPECT_EQ(true, subset1.stream(5)->ReadVarint32(&datum));
-  EXPECT_EQ(50000, datum);
-  EXPECT_EQ(true, subset1.Empty());
-
-  EXPECT_EQ(true, subset2.stream(2)->ReadVarint32(&datum));
-  EXPECT_EQ(20000, datum);
-  EXPECT_EQ(true, subset2.stream(6)->ReadVarint32(&datum));
-  EXPECT_EQ(60000, datum);
-  EXPECT_EQ(true, subset2.Empty());
-}