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Add reg test for http://crbug.com/348821

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BUG=348821
R=reed@google.com, mtklein@google.com

Author: mtklein@chromium.org

Review URL: https://codereview.chromium.org/189373008

git-svn-id: http://skia.googlecode.com/svn/trunk@13852 2bbb7eff-a529-9590-31e7-b0007b416f81
This commit is contained in:
commit-bot@chromium.org 2014-03-18 17:38:34 +00:00
parent e5957f67d0
commit af5346a39c
2 changed files with 22 additions and 0 deletions
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1
gyp/tests.gypi
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@ -55,6 +55,7 @@
'../tests/ColorFilterTest.cpp',
'../tests/ColorPrivTest.cpp',
'../tests/ColorTest.cpp',
'../tests/DashPathEffectTest.cpp',
'../tests/DataRefTest.cpp',
'../tests/DeferredCanvasTest.cpp',
'../tests/DequeTest.cpp',

21
tests/DashPathEffectTest.cpp Normal file
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@ -0,0 +1,21 @@
#include "Test.h"
#include "SkDashPathEffect.h"
#include "SkWriteBuffer.h"
// crbug.com/348821 was rooted in SkDashPathEffect refusing to flatten and unflatten itself when
// fInitialDashLength < 0 (a signal the effect is nonsense). Here we test that it flattens.
DEF_TEST(DashPathEffectTest_crbug_348821, r) {
SkScalar intervals[] = { 1.76934361e+36f, 2.80259693e-45f }; // Values from bug.
const int count = 2;
SkScalar phase = SK_ScalarInfinity; // Used to force the bad fInitialDashLength = -1 path.
SkAutoTUnref<SkDashPathEffect> dash(SkDashPathEffect::Create(intervals, count, phase));
// NULL -> refuses to work with flattening framework.
REPORTER_ASSERT(r, dash->getFactory() != NULL);
SkWriteBuffer buffer;
buffer.writeFlattenable(dash);
REPORTER_ASSERT(r, buffer.bytesWritten() > 12); // We'd write 12 if broken, >=40 if not.
}