40     static int constexpr kStride = 100;  member
43     std::array<uint32_t, kHeight * kStride> buffer;
49     EXPECT_THAT(sampleArea(buffer.data(), kWidth, kHeight, kStride, kOrientation, whole_area),  in TEST_F()
55     EXPECT_THAT(sampleArea(buffer.data(), kWidth, kHeight, kStride, kOrientation, whole_area),  in TEST_F()
61     auto const half = halfway_down * kStride;  in TEST_F()
66     EXPECT_THAT(sampleArea(buffer.data(), kWidth, kHeight, kStride, kOrientation, partial_region),  in TEST_F()
77     EXPECT_THAT(sampleArea(buffer.data(), kWidth, kHeight, kStride, kOrientation, whole_area),  in TEST_F()
84     EXPECT_THAT(sampleArea(buffer.data(), kWidth, kHeight, kStride, kOrientation, whole_area),  in TEST_F()
90                   [n = 0]() mutable { return (n++ > (kStride * kHeight >> 1)) ? kBlack : kWhite; });  in TEST_F()
93     EXPECT_THAT(sampleArea(buffer.data(), kWidth, kHeight, kStride, kOrientation, invalid_region),  in TEST_F()
97     EXPECT_THAT(sampleArea(buffer.data(), kWidth, kHeight, kStride, kOrientation, invalid_region),  in TEST_F()
101     EXPECT_THAT(sampleArea(buffer.data(), kWidth, kHeight, kStride, kOrientation, invalid_region),  in TEST_F()
105     EXPECT_THAT(sampleArea(buffer.data(), kWidth, kHeight, kStride, kOrientation, invalid_region),  in TEST_F()