Add a new incremental parsing API

Change-Id: I6b921766836d58df0281fb23b2add3f62a478e14

webm_parser/tests/slices_parser_test.cc

@@ -0,0 +1,80 @@
+// Copyright (c) 2016 The WebM 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 "src/slices_parser.h"
+
+#include "gtest/gtest.h"
+
+#include "test_utils/element_parser_test.h"
+#include "webm/id.h"
+
+using webm::ElementParserTest;
+using webm::Id;
+using webm::Slices;
+using webm::SlicesParser;
+using webm::TimeSlice;
+
+namespace {
+
+class SlicesParserTest : public ElementParserTest<SlicesParser, Id::kSlices> {};
+
+TEST_F(SlicesParserTest, DefaultParse) {
+  ParseAndVerify();
+
+  const Slices slices = parser_.value();
+
+  EXPECT_EQ(0, slices.slices.size());
+}
+
+TEST_F(SlicesParserTest, DefaultValues) {
+  SetReaderData({
+      0xE8,  // ID = 0xE8 (TimeSlice).
+      0x80,  // Size = 0.
+  });
+
+  ParseAndVerify();
+
+  const Slices slices = parser_.value();
+
+  ASSERT_EQ(1, slices.slices.size());
+  EXPECT_TRUE(slices.slices[0].is_present());
+  EXPECT_EQ(TimeSlice{}, slices.slices[0].value());
+}
+
+TEST_F(SlicesParserTest, CustomValues) {
+  SetReaderData({
+      0xE8,  // ID = 0xE8 (TimeSlice).
+      0x83,  // Size = 3.
+
+      0xCC,  //   ID = 0xCC (LaceNumber).
+      0x81,  //   Size = 1.
+      0x01,  //   Body (value = 1).
+
+      0xE8,  // ID = 0xE8 (TimeSlice).
+      0x83,  // Size = 3.
+
+      0xCC,  //   ID = 0xCC (LaceNumber).
+      0x81,  //   Size = 1.
+      0x02,  //   Body (value = 2).
+  });
+
+  ParseAndVerify();
+
+  const Slices slices = parser_.value();
+
+  TimeSlice expected;
+
+  ASSERT_EQ(2, slices.slices.size());
+  expected.lace_number.Set(1, true);
+  EXPECT_TRUE(slices.slices[0].is_present());
+  EXPECT_EQ(expected, slices.slices[0].value());
+  expected.lace_number.Set(2, true);
+  EXPECT_TRUE(slices.slices[1].is_present());
+  EXPECT_EQ(expected, slices.slices[1].value());
+}
+
+}  // namespace