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dct32x32_test: add PartialTrans32x32Test, Random

Change-Id: I644f35b0b0a540bf5b6ebb6dbc05b3c95736f42b

--- a/test/dct32x32_test.cc

+++ b/test/dct32x32_test.cc

@@ -344,6 +344,28 @@

   EXPECT_EQ((minval * kNumCoeffs) >> 3, output[0]);

 }

+TEST_P(PartialTrans32x32Test, Random) {

+#if CONFIG_VP9_HIGHBITDEPTH

+  const int16_t maxval =

+      static_cast<int16_t>(clip_pixel_highbd(1 << 30, bit_depth_));

+#else

+  const int16_t maxval = 255;

+#endif

+  DECLARE_ALIGNED(16, int16_t, input[kNumCoeffs]);

+  DECLARE_ALIGNED(16, tran_low_t, output[kNumCoeffs]);

+  ACMRandom rnd(ACMRandom::DeterministicSeed());

+

+  int sum = 0;

+  for (int i = 0; i < kNumCoeffs; ++i) {

+    const int val = (i & 1) ? -rnd(maxval + 1) : rnd(maxval + 1);

+    input[i] = val;

+    sum += val;

+  }

+  output[0] = 0;

+  ASM_REGISTER_STATE_CHECK(fwd_txfm_(input, output, 32));

+  EXPECT_EQ(sum >> 3, output[0]);

+}

+

 using std::tr1::make_tuple;

 #if CONFIG_VP9_HIGHBITDEPTH

-- 

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