skia2/tests/PathOpsBoundsTest.cpp
caryclark@google.com 8d0a524a48 harden and speed up path op unit tests
PathOps tests internal routines direcctly. Check to make sure that
test points, lines, quads, curves, triangles, and bounds read from
arrays are valid (i.e., don't contain NaN) before calling the
test function.

Repurpose the test flags.
- make 'v' verbose test region output against path output
- make 'z' single threaded (before it made it multithreaded)

The latter change speeds up tests run by the buildbot by 2x to 3x.

BUG=

Review URL: https://codereview.chromium.org/19374003

git-svn-id: http://skia.googlecode.com/svn/trunk@10107 2bbb7eff-a529-9590-31e7-b0007b416f81
2013-07-16 16:11:16 +00:00

114 lines
4.1 KiB
C++

/*
* 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 "SkPathOpsBounds.h"
#include "Test.h"
static const SkRect sectTests[][2] = {
{{2, 0, 4, 1}, {4, 0, 6, 1}},
{{2, 0, 4, 1}, {3, 0, 5, 1}},
{{2, 0, 4, 1}, {3, 0, 5, 0}},
{{2, 0, 4, 1}, {3, 1, 5, 2}},
{{2, 1, 4, 2}, {1, 0, 5, 3}},
{{2, 1, 5, 3}, {3, 1, 4, 2}},
{{2, 0, 4, 1}, {3, 0, 3, 0}}, // intersecting an empty bounds is OK
{{2, 0, 4, 1}, {4, 1, 5, 2}}, // touching just on a corner is OK
};
static const size_t sectTestsCount = SK_ARRAY_COUNT(sectTests);
static const SkRect noSectTests[][2] = {
{{2, 0, 4, 1}, {5, 0, 6, 1}},
{{2, 0, 4, 1}, {3, 2, 5, 2}},
};
static const size_t noSectTestsCount = SK_ARRAY_COUNT(noSectTests);
static const SkRect reallyEmpty[] = {
{0, 0, 0, 0},
{1, 1, 1, 0},
{1, 1, 0, 1},
{1, 1, 0, 0},
{1, 2, 3, SK_ScalarNaN},
};
static const size_t emptyTestsCount = SK_ARRAY_COUNT(reallyEmpty);
static const SkRect notReallyEmpty[] = {
{0, 0, 1, 0},
{0, 0, 0, 1},
{0, 0, 1, 1},
};
static const size_t notEmptyTestsCount = SK_ARRAY_COUNT(notReallyEmpty);
static void PathOpsBoundsTest(skiatest::Reporter* reporter) {
for (size_t index = 0; index < sectTestsCount; ++index) {
const SkPathOpsBounds& bounds1 = static_cast<const SkPathOpsBounds&>(sectTests[index][0]);
SkASSERT(ValidBounds(bounds1));
const SkPathOpsBounds& bounds2 = static_cast<const SkPathOpsBounds&>(sectTests[index][1]);
SkASSERT(ValidBounds(bounds2));
bool touches = SkPathOpsBounds::Intersects(bounds1, bounds2);
REPORTER_ASSERT(reporter, touches);
}
for (size_t index = 0; index < noSectTestsCount; ++index) {
const SkPathOpsBounds& bounds1 = static_cast<const SkPathOpsBounds&>(noSectTests[index][0]);
SkASSERT(ValidBounds(bounds1));
const SkPathOpsBounds& bounds2 = static_cast<const SkPathOpsBounds&>(noSectTests[index][1]);
SkASSERT(ValidBounds(bounds2));
bool touches = SkPathOpsBounds::Intersects(bounds1, bounds2);
REPORTER_ASSERT(reporter, !touches);
}
SkPathOpsBounds bounds;
bounds.setEmpty();
bounds.add(1, 2, 3, 4);
SkPathOpsBounds expected;
expected.set(0, 0, 3, 4);
REPORTER_ASSERT(reporter, bounds == expected);
bounds.setEmpty();
SkPathOpsBounds ordinal;
ordinal.set(1, 2, 3, 4);
bounds.add(ordinal);
REPORTER_ASSERT(reporter, bounds == expected);
SkPoint topLeft = {0, 0};
bounds.setPointBounds(topLeft);
SkPoint botRight = {3, 4};
bounds.add(botRight);
REPORTER_ASSERT(reporter, bounds == expected);
for (size_t index = 0; index < emptyTestsCount; ++index) {
const SkPathOpsBounds& bounds = static_cast<const SkPathOpsBounds&>(reallyEmpty[index]);
// SkASSERT(ValidBounds(bounds)); // don't check because test may contain nan
bool empty = bounds.isReallyEmpty();
REPORTER_ASSERT(reporter, empty);
}
for (size_t index = 0; index < notEmptyTestsCount; ++index) {
const SkPathOpsBounds& bounds = static_cast<const SkPathOpsBounds&>(notReallyEmpty[index]);
SkASSERT(ValidBounds(bounds));
bool empty = bounds.isReallyEmpty();
REPORTER_ASSERT(reporter, !empty);
}
const SkPoint curvePts[] = {{0, 0}, {1, 2}, {3, 4}, {5, 6}};
bounds.setLineBounds(curvePts);
expected.set(0, 0, 1, 2);
REPORTER_ASSERT(reporter, bounds == expected);
(bounds.*SetCurveBounds[1])(curvePts);
REPORTER_ASSERT(reporter, bounds == expected);
bounds.setQuadBounds(curvePts);
expected.set(0, 0, 3, 4);
REPORTER_ASSERT(reporter, bounds == expected);
(bounds.*SetCurveBounds[2])(curvePts);
REPORTER_ASSERT(reporter, bounds == expected);
bounds.setCubicBounds(curvePts);
expected.set(0, 0, 5, 6);
REPORTER_ASSERT(reporter, bounds == expected);
(bounds.*SetCurveBounds[3])(curvePts);
REPORTER_ASSERT(reporter, bounds == expected);
}
#include "TestClassDef.h"
DEFINE_TESTCLASS_SHORT(PathOpsBoundsTest)