A bunch of unit tests for GLES2

gpu/command_buffer/service/gles2_cmd_decoder_unittest.cc

Index: gpu/command_buffer/service/gles2_cmd_decoder_unittest.cc
===================================================================
--- gpu/command_buffer/service/gles2_cmd_decoder_unittest.cc	(revision 35431)
+++ gpu/command_buffer/service/gles2_cmd_decoder_unittest.cc	(working copy)
@@ -5,35 +5,139 @@
 #include "gpu/command_buffer/service/gles2_cmd_decoder.h"
 #include "gpu/command_buffer/common/gles2_cmd_format.h"
 #include "gpu/command_buffer/service/gl_mock.h"
+#include "gpu/command_buffer/service/cmd_buffer_engine.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using ::testing::_;
 using ::testing::Return;
 using ::testing::SetArgumentPointee;
+using ::testing::InSequence;
+using ::testing::Pointee;
 
 namespace gpu {
 namespace gles2 {
 
 class GLES2DecoderTest : public testing::Test {
+ public:
+  GLES2DecoderTest()
+      : client_buffer_id_(100),
+        client_framebuffer_id_(101),
+        client_program_id_(102),
+        client_renderbuffer_id_(103),
+        client_shader_id_(104),
+        client_texture_id_(105) {
+    memset(immediate_buffer_, 0xEE, sizeof(immediate_buffer_));
+  }
+
  protected:
+  static const GLint kNumVertexAttribs = 16;
+
+  static const GLuint kServiceBufferId = 301;
+  static const GLuint kServiceFramebufferId = 302;
+  static const GLuint kServiceRenderbufferId = 303;
+  static const GLuint kServiceTextureId = 304;
+  static const GLuint kServiceProgramId = 305;
+  static const GLuint kServiceShaderId = 306;
+
+  static const int32 kSharedMemoryId = 401;
+  static const size_t kSharedBufferSize = 2048;
+  static const uint32 kSharedMemoryOffset = 132;
+  static const int32 kInvalidSharedMemoryId = 402;
+  static const uint32 kInvalidSharedMemoryOffset = kSharedBufferSize + 1;
+
+  static const uint32 kNewClientId = 501;
+  static const uint32 kNewServiceId = 502;
+  static const uint32 kInvalidClientId = 601;
+
+  // Template to call glGenXXX functions.
+  template <typename T>
+  void GenHelper(GLuint client_id) {
+    int8 buffer[sizeof(T) + sizeof(client_id)];
+    T& cmd = *reinterpret_cast<T*>(&buffer);
+    cmd.Init(1, &client_id);
+    EXPECT_EQ(parse_error::kParseNoError,
+              ExecuteImmediateCmd(cmd, sizeof(client_id)));
+  }
+
+  // This template exists solely so we can specialize it for
+  // certain commands.
+  template <typename T, int id>
+  void SpecializedSetup() {
+  }
+
+  template <typename T>
+  T* GetImmediateAs() {
+    return reinterpret_cast<T*>(immediate_buffer_);
+  }
+
+  template <typename T, typename Command>
+  T GetImmediateDataAs(Command* cmd) {
+    reinterpret_cast<T>(ImmediateDataAddress(cmd));
+  }
+
   virtual void SetUp() {
-    gl_ = new ::gles2::MockGLInterface();
-    ::gles2::GLInterface::SetGLInterface(gl_);
+    gl_.reset(new ::gles2::MockGLInterface());
+    ::gles2::GLInterface::SetGLInterface(gl_.get());
 
-    EXPECT_CALL(*gl_, GetIntegerv(_, _))
-        .WillOnce(SetArgumentPointee<1>(16));
+    EXPECT_CALL(*gl_, GetIntegerv(GL_MAX_VERTEX_ATTRIBS, _))
+        .WillOnce(SetArgumentPointee<1>(kNumVertexAttribs))
+        .RetiresOnSaturation();
     EXPECT_CALL(*gl_, GetError())
         .WillRepeatedly(Return(GL_NO_ERROR));
 
-    decoder_ = GLES2Decoder::Create();
+    engine_.reset(new MockCommandBufferEngine());
+    Buffer buffer = engine_->GetSharedMemoryBuffer(kSharedMemoryId);
+    shared_memory_offset_ = kSharedMemoryOffset;
+    shared_memory_address_ = reinterpret_cast<int8*>(buffer.ptr) +
+        shared_memory_offset_;
+    shared_memory_id_ = kSharedMemoryId;
+
+    decoder_.reset(GLES2Decoder::Create());
     decoder_->Initialize();
+    decoder_->set_engine(engine_.get());
+
+    EXPECT_CALL(*gl_, GenBuffersARB(_, _))
+        .WillOnce(SetArgumentPointee<1>(kServiceBufferId))
+        .RetiresOnSaturation();
+    EXPECT_CALL(*gl_, GenFramebuffersEXT(_, _))
+        .WillOnce(SetArgumentPointee<1>(kServiceFramebufferId))
+        .RetiresOnSaturation();
+    EXPECT_CALL(*gl_, GenRenderbuffersEXT(_, _))
+        .WillOnce(SetArgumentPointee<1>(kServiceRenderbufferId))
+        .RetiresOnSaturation();
+    EXPECT_CALL(*gl_, GenTextures(_, _))
+        .WillOnce(SetArgumentPointee<1>(kServiceTextureId))
+        .RetiresOnSaturation();
+
+    GenHelper<GenBuffersImmediate>(client_buffer_id_);
+    GenHelper<GenFramebuffersImmediate>(client_framebuffer_id_);
+    GenHelper<GenRenderbuffersImmediate>(client_renderbuffer_id_);
+    GenHelper<GenTexturesImmediate>(client_texture_id_);
+
+    {
+      EXPECT_CALL(*gl_, CreateProgram())
+          .Times(1)
+          .WillOnce(Return(kServiceProgramId))
+          .RetiresOnSaturation();
+      CreateProgram cmd;
+      cmd.Init(client_program_id_);
+      EXPECT_EQ(parse_error::kParseNoError, ExecuteCmd(cmd));
+    }
+
+    {
+      EXPECT_CALL(*gl_, CreateShader(_))
+          .Times(1)
+          .WillOnce(Return(kServiceShaderId))
+          .RetiresOnSaturation();
+      CreateShader cmd;
+      cmd.Init(GL_VERTEX_SHADER, client_shader_id_);
+      EXPECT_EQ(parse_error::kParseNoError, ExecuteCmd(cmd));
+    }
   }
 
   virtual void TearDown() {
     decoder_->Destroy();
-    delete decoder_;
     ::gles2::GLInterface::SetGLInterface(NULL);
-    delete gl_;
   }
 
   template <typename T>
@@ -47,22 +151,77 @@
   template <typename T>
   parse_error::ParseError ExecuteImmediateCmd(const T& cmd, size_t data_size) {
     COMPILE_ASSERT(T::kArgFlags == cmd::kAtLeastN, Cmd_kArgFlags_not_kAtLeastN);
-    return decoder_.DoCommand(cmd.kCmdId,
-                              ComputeNumEntries(sizeof(cmd) + data_size) - 1,
-                              &cmd);
+    return decoder_->DoCommand(cmd.kCmdId,
+                               ComputeNumEntries(sizeof(cmd) + data_size) - 1,
+                               &cmd);
   }
 
-  ::gles2::MockGLInterface* gl_;
-  GLES2Decoder* decoder_;
+  template <typename T>
+  T GetSharedMemoryAs() {
+    return reinterpret_cast<T>(shared_memory_address_);
+  }
+
+  uint32 GetServiceId(uint32 client_id) {
+    return decoder_->GetServiceIdForTesting(client_id);
+  }
+
+  scoped_ptr<::gles2::MockGLInterface> gl_;
+  scoped_ptr<GLES2Decoder> decoder_;
+
+  GLuint client_buffer_id_;
+  GLuint client_framebuffer_id_;
+  GLuint client_program_id_;
+  GLuint client_renderbuffer_id_;
+  GLuint client_shader_id_;
+  GLuint client_texture_id_;
+
+  uint32 shared_memory_id_;
+  uint32 shared_memory_offset_;
+  void* shared_memory_address_;
+
+  int8 immediate_buffer_[256];
+
+ private:
+  class MockCommandBufferEngine : public CommandBufferEngine {
+   public:
+    MockCommandBufferEngine() {
+      data_.reset(new int8[kSharedBufferSize]);
+      valid_buffer_.ptr = data_.get();
+      valid_buffer_.size = kSharedBufferSize;
+    }
+
+    virtual ~MockCommandBufferEngine() {
+    }
+
+    Buffer GetSharedMemoryBuffer(int32 shm_id) {
+      return shm_id == kSharedMemoryId ? valid_buffer_ : invalid_buffer_;
+    }
+
+    void set_token(int32 token) {
+      DCHECK(false);
+    }
+
+   private:
+    scoped_array<int8> data_;
+    Buffer valid_buffer_;
+    Buffer invalid_buffer_;
+  };
+
+  scoped_ptr<MockCommandBufferEngine> engine_;
 };
 
-TEST_F(GLES2DecoderTest, Enable) {
-  EXPECT_CALL(*gl_, Enable(GL_BLEND));
+template <>
+void GLES2DecoderTest::SpecializedSetup<LinkProgram, 0>() {
+  InSequence dummy;
+  EXPECT_CALL(*gl_, GetProgramiv(kServiceProgramId, GL_ACTIVE_ATTRIBUTES, _))
+      .WillOnce(SetArgumentPointee<2>(0));
+  EXPECT_CALL(
+      *gl_,
+      GetProgramiv(kServiceProgramId, GL_ACTIVE_ATTRIBUTE_MAX_LENGTH, _))
+      .WillOnce(SetArgumentPointee<2>(0));
+};
 
-  Enable cmd;
-  cmd.Init(GL_BLEND);
-  EXPECT_EQ(parse_error::kParseNoError, ExecuteCmd(cmd));
-}
+#include "gpu/command_buffer/service/gles2_cmd_decoder_unittest_autogen.h"
 
 }  // namespace gles2
 }  // namespace gpu