Update tests to produce more sensible output for Android framework builds.

tests/KtxTest.cpp

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "Resources.h"
 #include "SkBitmap.h"
 #include "SkData.h"
@@ skipping 35 matching lines @@
             uint8_t b = rand.nextRangeU(0, 255);
 
             SkPMColor &pixel = *(reinterpret_cast<SkPMColor*>(row + x*sizeof(SkPMColor)));
             pixel = SkPreMultiplyARGB(a, r, g, b);
         }
         row += bm8888.rowBytes();
     }
     REPORTER_ASSERT(reporter, !(bm8888.empty()));
 
     SkAutoDataUnref encodedData(SkImageEncoder::EncodeData(bm8888, SkImageEncoder::kKTX_Type, 0));
-    REPORTER_ASSERT(reporter, encodedData);
+    if (nullptr == encodedData.get()) {
+        ERRORF(reporter, "failed to encode the bitmap to KTX");
+        return;
+    }
+
 
     SkAutoTDelete<SkMemoryStream> stream(new SkMemoryStream(encodedData));
     REPORTER_ASSERT(reporter, stream);
 
     SkBitmap decodedBitmap;
     bool imageDecodeSuccess = SkImageDecoder::DecodeStream(stream, &decodedBitmap);
-    REPORTER_ASSERT(reporter, imageDecodeSuccess);
+    if (!imageDecodeSuccess) {
+        ERRORF(reporter, "failed to decode the KTX stream");
+        return;
+    }
 
     REPORTER_ASSERT(reporter, decodedBitmap.colorType() == bm8888.colorType());
     REPORTER_ASSERT(reporter, decodedBitmap.alphaType() == bm8888.alphaType());
     REPORTER_ASSERT(reporter, decodedBitmap.width() == bm8888.width());
     REPORTER_ASSERT(reporter, decodedBitmap.height() == bm8888.height());
     REPORTER_ASSERT(reporter, !(decodedBitmap.empty()));
 
     uint8_t *decodedPixels = reinterpret_cast<uint8_t*>(decodedBitmap.getPixels());
     REPORTER_ASSERT(reporter, decodedPixels);
     REPORTER_ASSERT(reporter, decodedBitmap.getSize() == bm8888.getSize());
@@ skipping 31 matching lines @@
         0xFF, 0xFF, 0xFF, 0x80, // Pixel 1
         0xFF, 0xFF, 0xFF, 0x80, // Pixel 2
         0xFF, 0xFF, 0xFF, 0x80, // Pixel 3
         0xFF, 0xFF, 0xFF, 0x80};// Pixel 4
 
     SkAutoTDelete<SkMemoryStream> stream(new SkMemoryStream(kHalfWhiteKTX, sizeof(kHalfWhiteKTX)));
     REPORTER_ASSERT(reporter, stream);
 
     SkBitmap decodedBitmap;
     bool imageDecodeSuccess = SkImageDecoder::DecodeStream(stream, &decodedBitmap);
-    REPORTER_ASSERT(reporter, imageDecodeSuccess);
+    if (!imageDecodeSuccess) {
+        ERRORF(reporter, "failed to decode the KTX stream");
+        return;
+    }
 
     REPORTER_ASSERT(reporter, decodedBitmap.colorType() == kN32_SkColorType);
     REPORTER_ASSERT(reporter, decodedBitmap.alphaType() == kPremul_SkAlphaType);
     REPORTER_ASSERT(reporter, decodedBitmap.width() == 2);
     REPORTER_ASSERT(reporter, decodedBitmap.height() == 2);
     REPORTER_ASSERT(reporter, !(decodedBitmap.empty()));
 
     uint8_t *decodedPixels = reinterpret_cast<uint8_t*>(decodedBitmap.getPixels());
     REPORTER_ASSERT(reporter, decodedPixels);
 
@@ skipping 18 matching lines @@
     // Load PKM file into a bitmap
     SkBitmap etcBitmap;
     SkAutoTUnref<SkData> fileData(SkData::NewFromFileName(pkmFilename.c_str()));
     if (nullptr == fileData) {
         SkDebugf("KtxReexportPKM: can't load test file %s\n", pkmFilename.c_str());
         return;
     }
 
     bool installDiscardablePixelRefSuccess =
         SkDEPRECATED_InstallDiscardablePixelRef(fileData, &etcBitmap);
-    REPORTER_ASSERT(reporter, installDiscardablePixelRefSuccess);
+    if (!installDiscardablePixelRefSuccess) {
+        ERRORF(reporter, "failed to create discardable pixelRef from KTX file");
+        return;
+    }
 
     // Write the bitmap out to a KTX file.
     SkData *ktxDataPtr = SkImageEncoder::EncodeData(etcBitmap, SkImageEncoder::kKTX_Type, 0);
     SkAutoDataUnref newKtxData(ktxDataPtr);
     REPORTER_ASSERT(reporter, ktxDataPtr);
 
     // See is this data is identical to data in existing ktx file.
     SkString ktxFilename = GetResourcePath("mandrill_128.ktx");
     SkAutoDataUnref oldKtxData(SkData::NewFromFileName(ktxFilename.c_str()));
     REPORTER_ASSERT(reporter, oldKtxData->equals(newKtxData));
 }