Add test for line recognition with span

SixLabors · Feb 25, 2022 · 70e25b9 · 70e25b9
1 parent ab22328
commit 70e25b9
Showing 1 changed file with 20 additions and 0 deletions.
diff --git a/tests/SixLabors.Fonts.Tests/TextLayoutTests.cs b/tests/SixLabors.Fonts.Tests/TextLayoutTests.cs
@@ -346,6 +346,26 @@ public void CountLines(string text, int usedLines)
             Assert.Equal(usedLines, count);
         }
 
+        [Fact]
+        public void CountLinesWithSpan()
+        {
+            Font font = CreateFont("hello\n!");
+
+            Span<char> text = stackalloc char[]
+            {
+                'h',
+                'e',
+                'l',
+                'l',
+                'o',
+                '\n',
+                '!'
+            };
+            int count = TextMeasurer.CountLines(text, new TextOptions(font) { Dpi = font.FontMetrics.ScaleFactor });
+
+            Assert.Equal(2, count);
+        }
+
         [Theory]
         [InlineData("This is a long and Honorificabilitudinitatibus califragilisticexpialidocious", 25, 7)]
         [InlineData("This is a long and Honorificabilitudinitatibus califragilisticexpialidocious", 50, 7)]