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adding test for polylines() call with empty Point-s vector and fix for crash in this case

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This commit is contained in:
Andrey Pavlenko
2015-04-24 16:40:14 +03:00
parent 26e3bcb9de
commit 40b762bceb
2 changed files with 23 additions and 0 deletions
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20
modules/core/test/test_misc.cpp
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@@ -48,3 +48,23 @@ TEST(Core_SaturateCast, NegativeNotClipped)
ASSERT_EQ(0xffffffff, val);
}
TEST(Core_Drawing, polylines_empty)
{
Mat img(100, 100, CV_8UC1, Scalar(0));
vector<Point> pts; // empty
polylines(img, pts, false, Scalar(255));
int cnt = countNonZero(img);
ASSERT_EQ(cnt, 0);
}
TEST(Core_Drawing, polylines)
{
Mat img(100, 100, CV_8UC1, Scalar(0));
vector<Point> pts;
pts.push_back(Point(0, 0));
pts.push_back(Point(20, 0));
polylines(img, pts, false, Scalar(255));
int cnt = countNonZero(img);
ASSERT_EQ(cnt, 21);
}