SixLabors#542: use bigger files for the tests to "hide" rounding issues:

jongleur1983 · jongleur1983 · commit 0e8714eb446d · 2018-04-21T22:43:25.000+02:00
The current implementation lacks accurrancy and prefers to be fast.
For usual color gradients that shouldn't matter: They're quite smooth, for the black-white gradient on very small length's it's easy to spot these rounding errors as they affect whole pixels one can count manually.
diff --git a/tests/ImageSharp.Tests/Drawing/FillLinearGradientBrushTests.cs b/tests/ImageSharp.Tests/Drawing/FillLinearGradientBrushTests.cs
@@ -87,7 +87,7 @@ public void HorizontalLinearGradientBrushReturnsUnicolorColumns()
         public void LinearGradientsWithDoubledStopsProduceDashedPatterns(
             float[] pattern)
         {
-            int width = 20;
+            int width = 200;
             int height = 10;
 
             // ensure the input data is valid

Original file line number	Diff line number	Diff line change
`@@ -87,7 +87,7 @@ public void HorizontalLinearGradientBrushReturnsUnicolorColumns()`
`87`	`87`	`public void LinearGradientsWithDoubledStopsProduceDashedPatterns(`
`88`	`88`	`float[] pattern)`
`89`	`89`	`{`
`90`		`- int width = 20;`
	`90`	`+ int width = 200;`
`91`	`91`	`int height = 10;`
`92`	`92`
`93`	`93`	`// ensure the input data is valid`