1 // Copyright (c) 2009 The Chromium Authors. All rights reserved. 2 // Use of this source code is governed by a BSD-style license that can be 3 // found in the LICENSE file. 4 5 // Tests for the bitfield helper class. 6 7 #include "testing/gtest/include/gtest/gtest.h" 8 #include "gpu/command_buffer/common/bitfield_helpers.h" 9 10 namespace gpu { 11 12 // Tests that BitField<>::Get returns the right bits. 13 TEST(BitFieldTest, TestGet) { 14 unsigned int value = 0x12345678u; 15 EXPECT_EQ(0x8u, (BitField<0, 4>::Get(value))); 16 EXPECT_EQ(0x45u, (BitField<12, 8>::Get(value))); 17 EXPECT_EQ(0x12345678u, (BitField<0, 32>::Get(value))); 18 } 19 20 // Tests that BitField<>::MakeValue generates the right bits. 21 TEST(BitFieldTest, TestMakeValue) { 22 EXPECT_EQ(0x00000003u, (BitField<0, 4>::MakeValue(0x3))); 23 EXPECT_EQ(0x00023000u, (BitField<12, 8>::MakeValue(0x123))); 24 EXPECT_EQ(0x87654321u, (BitField<0, 32>::MakeValue(0x87654321))); 25 } 26 27 // Tests that BitField<>::Set modifies the right bits. 28 TEST(BitFieldTest, TestSet) { 29 unsigned int value = 0x12345678u; 30 BitField<0, 4>::Set(&value, 0x9); 31 EXPECT_EQ(0x12345679u, value); 32 BitField<12, 8>::Set(&value, 0x123); 33 EXPECT_EQ(0x12323679u, value); 34 BitField<0, 32>::Set(&value, 0x87654321); 35 EXPECT_EQ(0x87654321u, value); 36 } 37 38 } // namespace gpu 39
