Move Courgette...

courgette/encoded_program_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 "courgette/encoded_program.h"
+
+#include "courgette/streams.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+TEST(EncodedProgramTest, Test) {
+  //
+  // Create a simple program with a few addresses and references and
+  // check that the bits produced are as expected.
+  //
+  courgette::EncodedProgram* program = new courgette::EncodedProgram();
+
+  uint32 base = 0x00900000;
+  program->set_image_base(base);
+
+  program->DefineRel32Label(5, 0);  // REL32 index 5 == base + 0
+  program->DefineAbs32Label(7, 4);  // ABS32 index 7 == base + 4
+  program->EndLabels();
+
+  program->AddOrigin(0);  // Start at base.
+  program->AddAbs32(7);
+  program->AddRel32(5);
+
+  // Serialize and deserialize.
+
+  courgette::SinkStreamSet sinks;
+  program->WriteTo(&sinks);
+
+  courgette::SinkStream sink;
+  bool can_collect = sinks.CopyTo(&sink);
+  EXPECT_TRUE(can_collect);
+
+  const void* buffer = sink.Buffer();
+  size_t length = sink.Length();
+
+  courgette::SourceStreamSet sources;
+  bool can_get_source_streams = sources.Init(buffer, length);
+  EXPECT_TRUE(can_get_source_streams);
+
+  courgette::EncodedProgram *encoded2 = new courgette::EncodedProgram();
+  bool can_read = encoded2->ReadFrom(&sources);
+  EXPECT_TRUE(can_read);
+
+  // Finally, try to assemble.
+  courgette::SinkStream assembled;
+  bool can_assemble = encoded2->AssembleTo(&assembled);
+  EXPECT_TRUE(can_assemble);
+
+  const void* assembled_buffer = assembled.Buffer();
+  size_t assembled_length = assembled.Length();
+
+  EXPECT_EQ(8, assembled_length);
+
+  static const uint8 golden[] = {
+    0x04, 0x00, 0x90, 0x00,  // ABS32 to base + 4
+    0xF8, 0xFF, 0xFF, 0xFF   // REL32 from next line to base + 2
+  };
+
+  EXPECT_EQ(0, memcmp(assembled_buffer, golden, 8));
+}