test: putText regression garbage test

7e0f1ec0 · Alexander Alekhin · bcbe2f12 · 7e0f1ec0
Commit 7e0f1ec0 authored Dec 06, 2016 by Alexander Alekhin
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test_drawing.cpp modules/imgproc/test/test_drawing.cpp +15 -0

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--- a/modules/imgproc/test/test_drawing.cpp
+++ b/modules/imgproc/test/test_drawing.cpp
@@ -710,5 +710,20 @@ TEST(Drawing, polylines)
 }


+TEST(Drawing, putText_no_garbage)
+{
+    Size sz(640, 480);
+    Mat mat = Mat::zeros(sz, CV_8UC1);
+
+    mat = Scalar::all(0);
+    putText(mat, "029", Point(10, 350), 0, 10, Scalar(128), 15);
+
+    EXPECT_EQ(0, cv::countNonZero(mat(Rect(0, 0,           10, sz.height))));
+    EXPECT_EQ(0, cv::countNonZero(mat(Rect(sz.width-10, 0, 10, sz.height))));
+    EXPECT_EQ(0, cv::countNonZero(mat(Rect(205, 0,         10, sz.height))));
+    EXPECT_EQ(0, cv::countNonZero(mat(Rect(405, 0,         10, sz.height))));
+}
+
+

 } // namespace