mirror of https://github.com/openXC7/prjxray.git
44 lines
1.2 KiB
C++
44 lines
1.2 KiB
C++
#include <prjxray/bit_ops.h>
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#include <gtest/gtest.h>
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TEST(BitMaskTest, Bit0) {
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uint32_t expected = prjxray::bit_mask<uint32_t>(0);
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EXPECT_EQ(static_cast<uint32_t>(0x1), expected);
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}
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TEST(BitMaskTest, Bit3) {
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uint32_t expected = prjxray::bit_mask<uint32_t>(3);
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EXPECT_EQ(static_cast<uint32_t>(0x8), expected);
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}
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TEST(BitMaskRange, SingleBit) {
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uint32_t expected = prjxray::bit_mask_range<uint32_t>(23, 23);
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EXPECT_EQ(static_cast<uint32_t>(0x800000), expected);
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}
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TEST(BitMaskRange, DownToZero) {
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uint32_t expected = prjxray::bit_mask_range<uint32_t>(7, 0);
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EXPECT_EQ(static_cast<uint32_t>(0xFF), expected);
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}
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TEST(BitMaskRange, MiddleBits) {
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uint32_t expected = prjxray::bit_mask_range<uint32_t>(18, 8);
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EXPECT_EQ(static_cast<uint32_t>(0x7FF00), expected);
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}
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TEST(BitFieldGetTest, OneSelectedBit) {
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uint32_t expected = prjxray::bit_field_get(0xFFFFFFFF, 23, 23);
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EXPECT_EQ(static_cast<uint32_t>(1), expected);
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}
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TEST(BitFieldGetTest, SelectDownToZero) {
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uint32_t expected = prjxray::bit_field_get(0xFFCCBBAA, 7, 0);
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EXPECT_EQ(static_cast<uint32_t>(0xAA), expected);
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}
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TEST(BitFieldGetTest, SelectMidway) {
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uint32_t expected = prjxray::bit_field_get(0xFFCCBBAA, 18, 8);
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EXPECT_EQ(static_cast<uint32_t>(0x4BB), expected);
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}
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