Add a pixel test for gradients.
Bug: pdfium:842
Change-Id: Id8bfdf5090f7135cde520298d44d53a740aec9dd
Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/57210
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Commit-Queue: Lei Zhang <thestig@chromium.org>
diff --git a/testing/resources/pixel/bug_842.in b/testing/resources/pixel/bug_842.in
new file mode 100644
index 0000000..255a902
--- /dev/null
+++ b/testing/resources/pixel/bug_842.in
@@ -0,0 +1,99 @@
+{{header}}
+{{object 1 0}} <<
+ /Type /Catalog
+ /Pages 2 0 R
+>>
+endobj
+{{object 2 0}} <<
+ /Type /Pages
+ /Count 1
+ /Kids [3 0 R]
+>>
+endobj
+{{object 3 0}} <<
+ /Type /Page
+ /Parent 2 0 R
+ /MediaBox [0 0 720 540]
+ /Contents 4 0 R
+ /Resources <<
+ /ProcSet [/PDF /ImageB /ImageC /ImageI]
+ /Pattern <<
+ /P25 5 0 R
+ >>
+ >>
+>>
+endobj
+{{object 4 0}} <<
+{{streamlen}}
+>>
+stream
+q
+/Pattern cs /P25 scn
+461.25 480.37 253.13 31.5 re
+f*
+Q
+endstream
+endobj
+{{object 5 0}} <<
+ /PatternType 2
+ /Shading <<
+ /Coords [587.81 511.88 587.81 448.88]
+ /Function 6 0 R
+ /Extend [true true]
+ /ShadingType 2
+ /ColorSpace /DeviceRGB
+ >>
+>>
+endobj
+{{object 6 0}} <<
+ /FunctionType 3
+ /Functions [7 0 R 8 0 R 9 0 R 10 0 R 11 0 R]
+ /Encode [1 0 1 0 1 0 1 0 1 0]
+ /Bounds [0.325 0.5 0.5 0.675]
+ /Domain [0 1]
+>>
+endobj
+{{object 7 0}} <<
+ /FunctionType 2
+ /N 1
+ /C0 [0.81569 0.81569 0.81569]
+ /C1 [0.92941 0.92941 0.92941]
+ /Domain [0 1]
+>>
+endobj
+{{object 8 0}} <<
+ /FunctionType 2
+ /N 1
+ /C0 [0.73725 0.73725 0.73725]
+ /C1 [0.81569 0.81569 0.81569]
+ /Domain [0 1]
+>>
+endobj
+{{object 9 0}} <<
+ /FunctionType 2
+ /N 1
+ /C0 [0.73725 0.73725 0.73725]
+ /C1 [0.73725 0.73725 0.73725]
+ /Domain [0 1]
+>>
+endobj
+{{object 10 0}} <<
+ /FunctionType 2
+ /N 1
+ /C0 [0.81569 0.81569 0.81569]
+ /C1 [0.73725 0.73725 0.73725]
+ /Domain [0 1]
+>>
+endobj
+{{object 11 0}} <<
+ /FunctionType 2
+ /N 1
+ /C0 [0.92941 0.92941 0.92941]
+ /C1 [0.81569 0.81569 0.81569]
+ /Domain [0 1]
+>>
+endobj
+{{xref}}
+{{trailer}}
+{{startxref}}
+%%EOF
diff --git a/testing/resources/pixel/bug_842_expected.pdf.0.png b/testing/resources/pixel/bug_842_expected.pdf.0.png
new file mode 100644
index 0000000..7744fe8
--- /dev/null
+++ b/testing/resources/pixel/bug_842_expected.pdf.0.png
Binary files differ
