Add a command to lose the context

gpu/command_buffer/tests/gl_lose_context_chromium_unittests.cc

+// Copyright (c) 2012 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 <GLES2/gl2.h>
+#include <GLES2/gl2ext.h>
+
+#include "base/logging.h"
+#include "gpu/command_buffer/tests/gl_manager.h"
+#include "gpu/command_buffer/tests/gl_test_utils.h"
+#include "testing/gmock/include/gmock/gmock.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+namespace gpu {
+
+class GLLoseContextTest : public testing::Test {
+ protected:
+  virtual void SetUp() {
+    GLManager::Options options;
+    gl2_.Initialize(options);
+    options.context_lost_allowed = true;
+    gl1a_.Initialize(options);
+    options.share_group_manager = &gl1a_;
+    gl1b_.Initialize(options);
+  }
+
+  virtual void TearDown() {
+    gl1a_.Destroy();
+    gl1b_.Destroy();
+    gl2_.Destroy();
+  }
+
+  GLManager gl1a_;
+  GLManager gl1b_;
+  GLManager gl2_;
+};
+
+// Test that glLoseContextCHROMIUM loses context in the same
+// share group but not other.
+TEST_F(GLLoseContextTest, ShareGroup) {
+  gl1a_.MakeCurrent();
+  glLoseContextCHROMIUM(
+      GL_GUILTY_CONTEXT_RESET_EXT, GL_INNOCENT_CONTEXT_RESET_EXT);
+
+  uint8 expected_no_draw[] = {
+    GLTestHelper::kCheckClearValue,
+    GLTestHelper::kCheckClearValue,
+    GLTestHelper::kCheckClearValue,
+    GLTestHelper::kCheckClearValue,
+  };
+  // Expect the read will fail.
+  EXPECT_TRUE(GLTestHelper::CheckPixels(0, 0, 1, 1, 0, expected_no_draw));
+  gl1b_.MakeCurrent();
+  // Expect the read will fail.
+  EXPECT_TRUE(GLTestHelper::CheckPixels(0, 0, 1, 1, 0, expected_no_draw));
+  gl2_.MakeCurrent();
+  uint8 expected_draw[] = { 0, 0, 0, 0, };
+  // Expect the read will succeed.
+  EXPECT_TRUE(GLTestHelper::CheckPixels(0, 0, 1, 1, 0, expected_draw));
+}
+
+}  // namespace gpu
+