Explicitly specify invariant culture in DelimitedWriter unit tests

Author: Arlofin

src/Data.Tests/Text/DelimitedWriterTests.cs

@@ -142,7 +142,7 @@ public void CanWriteSpaceDelimitedData()
         {
             var matrix = SparseMatrix.OfArray(new[,] {{1.1, 0, 0}, {0, 5.5, 0}, {0, 0, 9.9}});
             var stream = new MemoryStream();
-            DelimitedWriter.Write(stream, matrix, " ");
+            DelimitedWriter.Write(stream, matrix, " ", formatProvider: CultureInfo.InvariantCulture);
             var data = stream.ToArray();
             var reader = new StreamReader(new MemoryStream(data));
             var text = reader.ReadToEnd();
@@ -160,7 +160,7 @@ public void CanWriteCommaDelimitedDataWithMissingValues()
         {
             var matrix = SparseMatrix.OfArray(new[,] { { 1.1, 0, 0 }, { 0, 5.5, 0 }, { 0, 0, 9.9 } });
             var stream = new MemoryStream();
-            DelimitedWriter.Write(stream, matrix, ",", missingValue: 0);
+            DelimitedWriter.Write(stream, matrix, ",", missingValue: 0, formatProvider: CultureInfo.InvariantCulture);
             var data = stream.ToArray();
             var reader = new StreamReader(new MemoryStream(data));
             var text = reader.ReadToEnd();
@@ -179,7 +179,7 @@ public void CanWriteTabDelimitedDataWithMissingValues()
         {
             var matrix = DenseMatrix.OfArray(new[,] { { 1.1, double.NaN, 0 }, { 0, 5.5, 0 }, { double.NaN, double.NaN, 9.9 } });
             var stream = new MemoryStream();
-            DelimitedWriter.Write(stream, matrix, "\t", missingValue: double.NaN);
+            DelimitedWriter.Write(stream, matrix, "\t", missingValue: double.NaN, formatProvider: CultureInfo.InvariantCulture);
             var data = stream.ToArray();
             var reader = new StreamReader(new MemoryStream(data));
             var text = reader.ReadToEnd();