harden and speed up path op unit tests

tests/PathOpsCubicQuadIntersectionTest.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
+#include "PathOpsTestCommon.h"
 #include "SkIntersections.h"
 #include "SkPathOpsCubic.h"
 #include "SkPathOpsQuad.h"
 #include "SkReduceOrder.h"
 #include "Test.h"
 
 static struct lineCubic {
     SkDCubic cubic;
     SkDQuad quad;
     int answerCount;
     SkDPoint answers[2];
 } quadCubicTests[] = {
     {{{{10,234}, {10,229.58172607421875}, {13.581720352172852,226}, {18,226}}},
         {{{18,226}, {14.686291694641113,226}, {12.342399597167969,228.3424072265625}}}, 1,
         {{18,226}, {0,0}}},
     {{{{10,234}, {10,229.58172607421875}, {13.581720352172852,226}, {18,226}}},
         {{{12.342399597167969,228.3424072265625}, {10,230.68629455566406}, {10,234}}}, 1,
         {{10,234}, {0,0}}},
 };
 
 static const size_t quadCubicTests_count = SK_ARRAY_COUNT(quadCubicTests);
 
 static void PathOpsCubicQuadIntersectionTest(skiatest::Reporter* reporter) {
     for (size_t index = 0; index < quadCubicTests_count; ++index) {
         int iIndex = static_cast<int>(index);
         const SkDCubic& cubic = quadCubicTests[index].cubic;
+        SkASSERT(ValidCubic(cubic));
         const SkDQuad& quad = quadCubicTests[index].quad;
+        SkASSERT(ValidQuad(quad));
         SkReduceOrder reduce1;
         SkReduceOrder reduce2;
         int order1 = reduce1.reduce(cubic, SkReduceOrder::kNo_Quadratics,
                 SkReduceOrder::kFill_Style);
         int order2 = reduce2.reduce(quad, SkReduceOrder::kFill_Style);
         if (order1 != 4) {
             SkDebugf("[%d] cubic order=%d\n", iIndex, order1);
             REPORTER_ASSERT(reporter, 0);
         }
         if (order2 != 3) {
@@ skipping 18 matching lines @@
                 found |= quadCubicTests[index].answers[idx2].approximatelyEqual(xy1);
             }
             REPORTER_ASSERT(reporter, found);
         }
         reporter->bumpTestCount();
     }
 }
 
 #include "TestClassDef.h"
 DEFINE_TESTCLASS_SHORT(PathOpsCubicQuadIntersectionTest)