1 files changed, 286 insertions, 0 deletions
diff --git a/ThirdParty/CsvHelper-master/tests/CsvHelper.Tests/Parsing/DetectDelimiterTests.cs b/ThirdParty/CsvHelper-master/tests/CsvHelper.Tests/Parsing/DetectDelimiterTests.cs
new file mode 100644
index 0000000..facc030
--- /dev/null
+++ b/ThirdParty/CsvHelper-master/tests/CsvHelper.Tests/Parsing/DetectDelimiterTests.cs
@@ -0,0 +1,286 @@
+// Copyright 2009-2022 Josh Close
+// This file is a part of CsvHelper and is dual licensed under MS-PL and Apache 2.0.
+// See LICENSE.txt for details or visit http://www.opensource.org/licenses/ms-pl.html for MS-PL and http://opensource.org/licenses/Apache-2.0 for Apache 2.0.
+// https://github.com/JoshClose/CsvHelper
+using CsvHelper.Configuration;
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.IO;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Xunit;
+
+namespace CsvHelper.Tests.Parsing
+{
+    public class DetectDelimiterTests
+    {
+		[Fact]
+        public void GetDelimiter_TextHasCommas_DetectsComma()
+		{
+			var s = new StringBuilder();
+			s.Append("Id,Name\r\n");
+			s.Append("1,one\r\n");
+			var config = new CsvConfiguration(CultureInfo.InvariantCulture)
+			{
+				Delimiter = "`",
+			};
+			Assert.Equal(",", ConfigurationFunctions.GetDelimiter(new Delegates.GetDelimiterArgs(s.ToString(), config)));
+		}
+
+		[Fact]
+		public void GetDelimiter_TextHasSemicolons_DetectsSemicolon()
+		{
+			var s = new StringBuilder();
+			s.Append("Id;Name\r\n");
+			s.Append("1;one\r\n");
+			var config = new CsvConfiguration(CultureInfo.InvariantCulture)
+			{
+				Delimiter = "`",
+			};
+			using (var reader = new StringReader(s.ToString()))
+			using (var parser = new CsvParser(reader, config))
+			{
+				parser.Read();
+
+				Assert.Equal(";", ConfigurationFunctions.GetDelimiter(new Delegates.GetDelimiterArgs(s.ToString(), config)));
+			}
+		}
+
+		[Fact]
+		public void GetDelimiter_TextHasPipes_DetectsPipe()
+		{
+			var s = new StringBuilder();
+			s.Append("Id|Name\r\n");
+			s.Append("1|one\r\n");
+			var config = new CsvConfiguration(CultureInfo.InvariantCulture)
+			{
+				Delimiter = "`",
+			};
+			using (var reader = new StringReader(s.ToString()))
+			using (var parser = new CsvParser(reader, config))
+			{
+				parser.Read();
+
+				Assert.Equal("|", ConfigurationFunctions.GetDelimiter(new Delegates.GetDelimiterArgs(s.ToString(), config)));
+			}
+		}
+
+		[Fact]
+		public void GetDelimiter_TextHasTabs_DetectsTab()
+		{
+			var s = new StringBuilder();
+			s.Append("Id\tName\r\n");
+			s.Append("1\tone\r\n");
+			var config = new CsvConfiguration(CultureInfo.InvariantCulture)
+			{
+				Delimiter = "`",
+			};
+			using (var reader = new StringReader(s.ToString()))
+			using (var parser = new CsvParser(reader, config))
+			{
+				parser.Read();
+
+				Assert.Equal("\t", ConfigurationFunctions.GetDelimiter(new Delegates.GetDelimiterArgs(s.ToString(), config)));
+			}
+		}
+
+		[Fact]
+		public void GetDelimiter_EqualAmountOfDelimiters_DetectsFirstInDelimiterValuesList()
+		{
+			var s = new StringBuilder();
+			s.Append(";;,,\t\t||\r\n");
+			var config = new CsvConfiguration(CultureInfo.InvariantCulture)
+			{
+				Delimiter = "`",
+				DetectDelimiter = true,
+			};
+			using (var reader = new StringReader(s.ToString()))
+			using (var parser = new CsvParser(reader, config))
+			{
+				parser.Read();
+
+				Assert.Equal(",", ConfigurationFunctions.GetDelimiter(new Delegates.GetDelimiterArgs(s.ToString(), config)));
+			}
+		}
+
+		[Fact]
+		public void GetDelimiter_TextHas2CharDelimiter_DetectsDelimiter()
+		{
+			var s = new StringBuilder();
+			s.Append("Id,,Name\r\n");
+			var config = new CsvConfiguration(CultureInfo.InvariantCulture)
+			{
+				Delimiter = "`",
+				DetectDelimiter = true,
+				DetectDelimiterValues = new[] { ",," },
+			};
+			using (var reader = new StringReader(s.ToString()))
+			using (var parser = new CsvParser(reader, config))
+			{
+				parser.Read();
+
+				Assert.Equal(",,", ConfigurationFunctions.GetDelimiter(new Delegates.GetDelimiterArgs(s.ToString(), config)));
+			}
+		}
+
+		[Fact]
+		public void GetDelimiter_TextHasRegularCharDelimiter_DetectsDelimiter()
+		{
+			var s = new StringBuilder();
+			s.Append("IdþName\r\n");
+			s.Append("1þone\r\n");
+			var config = new CsvConfiguration(CultureInfo.InvariantCulture)
+			{
+				Delimiter = "`",
+				DetectDelimiterValues = new[] { "þ" }
+			};
+			Assert.Equal("þ", ConfigurationFunctions.GetDelimiter(new Delegates.GetDelimiterArgs(s.ToString(), config)));
+		}
+
+		[Fact]
+		public void GetDelimiter_MultipleLines_DetectsDelimiterThatIsOnEveryLine()
+		{
+			var s = new StringBuilder();
+			s.Append("Id;Name\r\n");
+			s.Append("1,2,3,4;5,6,7,8\r\n");
+			var config = new CsvConfiguration(CultureInfo.InvariantCulture)
+			{
+				Delimiter = "`",
+				DetectDelimiterValues = new[] { ",", ";" }
+			};
+			Assert.Equal(";", ConfigurationFunctions.GetDelimiter(new Delegates.GetDelimiterArgs(s.ToString(), config)));
+		}
+
+		[Fact]
+		public void GetDelimiter_NoDelimiter_DoesNotDetect()
+		{
+			var s = new StringBuilder();
+			s.Append("Id,Name\r\n");
+			s.Append("1,one\r\n");
+			var config = new CsvConfiguration(CultureInfo.InvariantCulture)
+			{
+				Delimiter = "`",
+				DetectDelimiterValues = new[] { ";" }
+			};
+			Assert.Equal("`", ConfigurationFunctions.GetDelimiter(new Delegates.GetDelimiterArgs(s.ToString(), config)));
+		}
+
+		[Fact]
+		public void GetDelimiter_CulturesSeparatorOccursLessButIsOnEveryLine_CulturesSeparatorIsDetected()
+		{
+			var s = new StringBuilder();
+			s.Append("1;2,3;4\r\n");
+			s.Append("5;6,7;8\r\n");
+			s.Append("9;10,11;12\r\n");
+			var config = new CsvConfiguration(CultureInfo.InvariantCulture)
+			{
+			};
+			Assert.Equal(CultureInfo.InvariantCulture.TextInfo.ListSeparator, ConfigurationFunctions.GetDelimiter(new Delegates.GetDelimiterArgs(s.ToString(), config)));
+		}
+
+		[Fact]
+		public void GetDelimiter_CulturesSeparatorOccursLessAndIsOnFirstLine_CulturesSeparatorIsNotDetected()
+		{
+			var s = new StringBuilder();
+			s.Append("1;2,3;4\r\n");
+			s.Append("5;6;7;8\r\n");
+			s.Append("9;10,11;12\r\n");
+			var config = new CsvConfiguration(CultureInfo.InvariantCulture)
+			{
+			};
+			Assert.NotEqual(CultureInfo.InvariantCulture.TextInfo.ListSeparator, ConfigurationFunctions.GetDelimiter(new Delegates.GetDelimiterArgs(s.ToString(), config)));
+		}
+
+		[Fact]
+		public void GetDelimiter_CulturesSeparatorOccursLessAndHasSingleLine_CulturesSeparatorIsNotDetected()
+		{
+			var s = new StringBuilder();
+			s.Append("1;2,3;4\r\n");
+			var config = new CsvConfiguration(CultureInfo.InvariantCulture)
+			{
+			};
+			Assert.NotEqual(CultureInfo.InvariantCulture.TextInfo.ListSeparator, ConfigurationFunctions.GetDelimiter(new Delegates.GetDelimiterArgs(s.ToString(), config)));
+		}
+
+		[Fact]
+		public void GetDelimiter_CulturesSeparatorOccursLessAndHas2LinesAndIsOnEveryLine_CulturesSeparatorIsNotDetected()
+		{
+			var s = new StringBuilder();
+			s.Append("1;2,3;4\r\n");
+			s.Append("5;6,7;8\r\n");
+			var config = new CsvConfiguration(CultureInfo.InvariantCulture)
+			{
+			};
+			Assert.NotEqual(CultureInfo.InvariantCulture.TextInfo.ListSeparator, ConfigurationFunctions.GetDelimiter(new Delegates.GetDelimiterArgs(s.ToString(), config)));
+		}
+
+		[Fact]
+		public void GetDelimiter_CulturesSeparatorOccursLessAndIsOnSecondLine_CulturesSeparatorIsDetected()
+		{
+			var s = new StringBuilder();
+			s.Append("1;2;3;4\r\n");
+			s.Append("5;6,7;8\r\n");
+			var config = new CsvConfiguration(CultureInfo.InvariantCulture)
+			{
+			};
+			Assert.Equal(";", ConfigurationFunctions.GetDelimiter(new Delegates.GetDelimiterArgs(s.ToString(), config)));
+		}
+
+		[Fact]
+		public void GetDelimiter_TextHasLF_NewLineIsCRLF_DetectsDelimiter()
+		{
+			var s = new StringBuilder();
+			s.Append("name;num;date\nLily;1,005.25;2021-02-03\nJack;3.5;2021-02-04");
+			var config = new CsvConfiguration(CultureInfo.InvariantCulture)
+			{
+			};
+			var delimeter = ConfigurationFunctions.GetDelimiter(new Delegates.GetDelimiterArgs(s.ToString(), config));
+			Assert.Equal(";", delimeter);
+		}
+
+		[Fact]
+		public void CsvParserConstructor_DelimiterValuesEmpty_ThrowsException()
+		{
+			var s = new StringBuilder();
+			s.Append("Id,Name\r\n");
+			s.Append("1,one\r\n");
+			var config = new CsvConfiguration(CultureInfo.InvariantCulture)
+			{
+				DetectDelimiter = true,
+				DetectDelimiterValues = new string[0],
+			};
+			using (var reader = new StringReader(s.ToString()))
+			{
+				Assert.Throws<ConfigurationException>(() => new CsvParser(reader, config));
+			}
+		}
+
+		[Fact]
+		public void Read_TextHasCommas_ParsesRows()
+		{
+			var s = new StringBuilder();
+			s.Append("Id,Name\r\n");
+			s.Append("1,one\r\n");
+			var config = new CsvConfiguration(CultureInfo.InvariantCulture)
+			{
+				Delimiter = "`",
+				DetectDelimiter = true,
+			};
+			using (var reader = new StringReader(s.ToString()))
+			using (var parser = new CsvParser(reader, config))
+			{
+				var row = parser.Read();
+
+				Assert.Equal("Id", parser[0]);
+				Assert.Equal("Name", parser[1]);
+
+				row = parser.Read();
+
+				Assert.Equal("1", parser[0]);
+				Assert.Equal("one", parser[1]);
+			}
+		}
+	}
+}