Add reg test for http://crbug.com/348821
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
diff --git a/gyp/tests.gypi b/gyp/tests.gypi
index cd0e111..a036dbd 100644
--- a/gyp/tests.gypi
+++ b/gyp/tests.gypi
@@ -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',
diff --git a/tests/DashPathEffectTest.cpp b/tests/DashPathEffectTest.cpp
new file mode 100644
index 0000000..1e53058
--- /dev/null
+++ b/tests/DashPathEffectTest.cpp
@@ -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.
+}