Fix setup of integration tests.

Integration tests were failing when negative sign was
not the '-' character. This ensures the input files
are loaded correctly.

Author: Evileye

itext.tests/itext.svg.tests/itext/svg/converter/SvgConverterIntegrationTest.cs

@@ -251,7 +251,7 @@ public virtual void DrawOnSpecifiedPositionNegativeX() {
             String name = "eclipse";
             int x = -50;
             int y = 0;
-            String destName = name + "_" + x + "_" + y;
+            String destName = String.Format(System.Globalization.CultureInfo.InvariantCulture, "{0}_{1}_{2}", name, x, y);
             FileStream fis = new FileStream(sourceFolder + name + ".svg", FileMode.Open, FileAccess.Read);
             DrawOnSpecifiedPositionDocument(fis, destinationFolder + destName + ".pdf", x, y);
             NUnit.Framework.Assert.IsNull(new CompareTool().CompareByContent(destinationFolder + destName + ".pdf", sourceFolder
@@ -263,7 +263,7 @@ public virtual void DrawOnSpecifiedPositionNegativeY() {
             String name = "eclipse";
             int x = 0;
             int y = -100;
-            String destName = name + "_" + x + "_" + y;
+            String destName = String.Format(System.Globalization.CultureInfo.InvariantCulture, "{0}_{1}_{2}", name, x, y);
             FileStream fis = new FileStream(sourceFolder + name + ".svg", FileMode.Open, FileAccess.Read);
             DrawOnSpecifiedPositionDocument(fis, destinationFolder + destName + ".pdf", x, y);
             NUnit.Framework.Assert.IsNull(new CompareTool().CompareByContent(destinationFolder + destName + ".pdf", sourceFolder
@@ -275,7 +275,7 @@ public virtual void DrawOnSpecifiedPositionNegativeXY() {
             String name = "eclipse";
             int x = -50;
             int y = -100;
-            String destName = name + "_" + x + "_" + y;
+            String destName = String.Format(System.Globalization.CultureInfo.InvariantCulture, "{0}_{1}_{2}", name, x, y);
             FileStream fis = new FileStream(sourceFolder + name + ".svg", FileMode.Open, FileAccess.Read);
             DrawOnSpecifiedPositionDocument(fis, destinationFolder + destName + ".pdf", x, y);
             NUnit.Framework.Assert.IsNull(new CompareTool().CompareByContent(destinationFolder + destName + ".pdf", sourceFolder
@@ -287,7 +287,7 @@ public virtual void DrawOnSpecifiedPositionPartialOnPage() {
             String name = "eclipse";
             int x = -50;
             int y = -50;
-            String destName = name + "_" + x + "_" + y;
+            String destName = String.Format(System.Globalization.CultureInfo.InvariantCulture, "{0}_{1}_{2}", name, x, y);
             FileStream fis = new FileStream(sourceFolder + name + ".svg", FileMode.Open, FileAccess.Read);
             DrawOnSpecifiedPositionDocument(fis, destinationFolder + destName + ".pdf", x, y);
             NUnit.Framework.Assert.IsNull(new CompareTool().CompareByContent(destinationFolder + destName + ".pdf", sourceFolder