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Добавил тесты для служебного класса работы со SQLite базой. Рефакторинг.

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This commit is contained in:
YPermitin 2020-04-12 13:35:08 +05:00
parent 944670dc11
commit 36a0daec08
11 changed files with 263 additions and 36 deletions
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YY.EventLogAssistant/YY.EventLogAssistant.Tests/SampleData/SQLiteFormatEventLog/1Cv8.lgd Normal file
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4
YY.EventLogAssistant/YY.EventLogAssistant.Tests/Services/DateTimeExtensionsTests.cs
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@ -8,6 +8,8 @@ namespace YY.EventLogAssistant.Services.Tests
{
public class DateTimeExtensionsTests
{
#region Public Methods
[Fact]
public void ToNullIfTooEarlyForDb_IsNull_Test()
{
@ -45,5 +47,7 @@ namespace YY.EventLogAssistant.Services.Tests
Assert.Equal(correctDate, resultDate);
}
#endregion
}
}

4
YY.EventLogAssistant/YY.EventLogAssistant.Tests/Services/IntExtensionsTests.cs
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@ -7,6 +7,8 @@ namespace YY.EventLogAssistant.Services.Tests
{
public class IntExtensionsTests
{
#region Public Methods
[Fact]
public void ToDateTimeFormat_Test()
{
@ -26,5 +28,7 @@ namespace YY.EventLogAssistant.Services.Tests
Assert.Equal(checkDate, resultDate);
}
#endregion
}
}

178
YY.EventLogAssistant/YY.EventLogAssistant.Tests/Services/SQLiteExtensionsTests.cs Normal file
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@ -0,0 +1,178 @@
using System;
using System.Collections.Generic;
using System.Data.SQLite;
using System.IO;
using System.Text;
using System.Linq;
using Xunit;
using YY.EventLogAssistant.Services;
namespace YY.EventLogAssistant.Services.Tests
{
public class SQLiteExtensionsTests
{
#region Private Member Variables
private string sampleDataDirectory;
private string sampleDatabaseFile;
#endregion
#region Constructor
public SQLiteExtensionsTests()
{
string currentDirectory = Directory.GetCurrentDirectory();
sampleDataDirectory = Path.Combine(currentDirectory, "SampleData");
sampleDatabaseFile = Path.Combine(sampleDataDirectory, "SQLiteFormatEventLog", "1Cv8.lgd");
}
#endregion
#region Public Methods
[Fact]
public void GetStringOrDefault_Test()
{
string connectionString = SQLiteExtensions.GetConnectionString(sampleDatabaseFile);
string queryText = string.Format(
"Select\n" +
" \"Hello, world!\" AS DataPresentation,\n" +
" null AS DataPresentationEmpty\n" +
"From\n" +
" EventLog el\n" +
"Where RowID > {0}\n" +
"Order By rowID\n" +
"Limit {1}\n", 0, 1);
string DataPresentation = null;
string DataPresentationEmpty = null;
using (SQLiteConnection connection = new SQLiteConnection(connectionString))
{
connection.Open();
using (SQLiteCommand command = new SQLiteCommand(queryText, connection))
{
SQLiteDataReader reader = command.ExecuteReader();
if (reader.Read())
{
DataPresentation = SQLiteExtensions.GetStringOrDefault(reader, 0);
DataPresentationEmpty = SQLiteExtensions.GetStringOrDefault(reader, 1);
}
}
}
Assert.Equal("Hello, world!", DataPresentation);
Assert.Equal(String.Empty, DataPresentationEmpty);
}
[Fact]
public void GetInt64OrDefault_Test()
{
string connectionString = SQLiteExtensions.GetConnectionString(sampleDatabaseFile);
string queryText = String.Format(
"Select\n" +
" null AS ConnectId,\n" +
" 777 AS Session\n" +
"From\n" +
" EventLog el\n" +
"Where RowID > {0}\n" +
"Order By rowID\n" +
"Limit {1}\n", 0, 1);
long connectionId = 0;
long sessionId = 0;
using (SQLiteConnection connection = new SQLiteConnection(connectionString))
{
connection.Open();
using (SQLiteCommand command = new SQLiteCommand(queryText, connection))
{
SQLiteDataReader reader = command.ExecuteReader();
if (reader.Read())
{
connectionId = SQLiteExtensions.GetInt64OrDefault(reader, 0);
sessionId = SQLiteExtensions.GetInt64OrDefault(reader, 1);
}
}
}
Assert.Equal(0, connectionId);
Assert.Equal(777, sessionId);
}
[Fact]
public void GetRowAsString_Test()
{
string connectionString = SQLiteExtensions.GetConnectionString(sampleDatabaseFile);
string queryText = String.Format(
"Select\n" +
" el.RowId AS RowId,\n" +
" el.Date AS Date,\n" +
" el.ConnectId AS ConnectId,\n" +
" el.Session AS Session\n" +
"From\n" +
" EventLog el\n" +
"Where RowID > {0}\n" +
"Order By rowID\n" +
"Limit {1}\n", 0, 1);
string rowAsString = String.Empty;
using (SQLiteConnection connection = new SQLiteConnection(connectionString))
{
connection.Open();
using (SQLiteCommand command = new SQLiteCommand(queryText, connection))
{
SQLiteDataReader reader = command.ExecuteReader();
if (reader.Read())
{
rowAsString = reader.GetRowAsString();
}
}
}
int countLines = rowAsString.Split('\n').Where(str => str != string.Empty).Count();
Assert.NotEqual(String.Empty, rowAsString);
Assert.Equal(4, countLines);
Assert.Contains("RowId", rowAsString);
Assert.Contains("Date", rowAsString);
Assert.Contains("ConnectId", rowAsString);
Assert.Contains("Session", rowAsString);
}
[Fact]
public void GetConnectionString_Test()
{
string connectionString = SQLiteExtensions.GetConnectionString(sampleDatabaseFile);
string queryText = String.Format(
"Select\n" +
" COUNT(el.RowId) CNT\n" +
"From\n" +
" EventLog el\n");
long rowsCount = 0;
using (SQLiteConnection connection = new SQLiteConnection(connectionString))
{
connection.Open();
using (SQLiteCommand command = new SQLiteCommand(queryText, connection))
{
SQLiteDataReader reader = command.ExecuteReader();
if (reader.Read())
{
object rowsCountObject = reader.GetValue(0);
if (rowsCountObject is long)
{
rowsCount = Convert.ToInt64(rowsCountObject);
}
}
}
}
Assert.NotEqual(0, rowsCount);
}
#endregion
}
}

4
YY.EventLogAssistant/YY.EventLogAssistant.Tests/Services/StringExtensionsTests.cs
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@ -7,6 +7,8 @@ namespace YY.EventLogAssistant.Services.Tests
{
public class StringExtensionsTests
{
#region Public Methods
[Fact]
public void From16To10_Test()
{
@ -91,5 +93,7 @@ namespace YY.EventLogAssistant.Services.Tests
Assert.Equal(checkValue, resultValue);
}
#endregion
}
}

6
YY.EventLogAssistant/YY.EventLogAssistant.Tests/YY.EventLogAssistant.Tests.csproj
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@ -22,4 +22,10 @@
<ProjectReference Include="..\YY.EventLogAssistant\YY.EventLogAssistant.csproj" />
</ItemGroup>
<ItemGroup>
<None Update="SampleData\SQLiteFormatEventLog\1Cv8.lgd">
<CopyToOutputDirectory>Always</CopyToOutputDirectory>
</None>
</ItemGroup>
</Project>

4
YY.EventLogAssistant/YY.EventLogAssistant/Services/DateTimeExtensions.cs
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@ -7,6 +7,8 @@ namespace YY.EventLogAssistant.Services
{
internal static class DateTimeExtensions
{
#region Public Methods
public static DateTime? ToNullIfTooEarlyForDb(this DateTime date)
{
return (date >= (DateTime)SqlDateTime.MinValue) ? date : (DateTime?)null;
@ -28,5 +30,7 @@ namespace YY.EventLogAssistant.Services
new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc)
).TotalMilliseconds;
}
#endregion
}
}

4
YY.EventLogAssistant/YY.EventLogAssistant/Services/IntExtensions.cs
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@ -6,6 +6,8 @@ namespace YY.EventLogAssistant.Services
{
internal static class IntExtensions
{
#region #region Public Methods
public static DateTime ToDateTimeFormat(this long s)
{
return DateTime.MinValue.AddSeconds((double)s / 10000);
@ -18,5 +20,7 @@ namespace YY.EventLogAssistant.Services
else
return DateTime.MinValue.AddSeconds((double)s / 10000);
}
#endregion
}
}

4
YY.EventLogAssistant/YY.EventLogAssistant/Services/SQLiteExtensions.cs
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@ -8,6 +8,8 @@ namespace YY.EventLogAssistant.Services
{
internal static class SQLiteExtensions
{
#region Public Methods
public static string GetStringOrDefault(this SQLiteDataReader reader, int valueIndex)
{
try
@ -51,5 +53,7 @@ namespace YY.EventLogAssistant.Services
{
return String.Format("Data Source={0};Version=3;Read Only=True;", dbFile);
}
#endregion
}
}

82
YY.EventLogAssistant/YY.EventLogAssistant/Services/StreamLineReader.cs
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@ -8,14 +8,20 @@ namespace YY.EventLogAssistant.Services
{
internal class StreamLineReader : IDisposable
{
const int BufferLength = 1024;
#region Private Member Variables
Stream _Base;
int _Read = 0, _Index = 0;
byte[] _Bff = new byte[BufferLength];
private const int BufferLength = 1024;
long _CurrentPosition = 0;
long _CurrentLine = 0;
private Stream _Base;
private int _Read = 0, _Index = 0;
private byte[] _Bff = new byte[BufferLength];
private long _CurrentPosition = 0;
private long _CurrentLine = 0;
#endregion
#region Public Methods
public long CurrentPosition { get { return _CurrentPosition; } }
@ -27,34 +33,6 @@ namespace YY.EventLogAssistant.Services
public long GetCount(long goToLine) { return IGetCount(goToLine, false); }
long IGetCount(long goToLine, bool stopWhenLine)
{
_Base.Seek(0, SeekOrigin.Begin);
_CurrentPosition = 0;
_CurrentLine = 0;
_Index = 0;
_Read = 0;
long savePosition = _Base.Length;
do
{
if (_CurrentLine == goToLine)
{
savePosition = _CurrentPosition;
if (stopWhenLine) return _CurrentLine;
}
}
while (ReadLine() != null);
long count = _CurrentLine;
_CurrentLine = goToLine;
_Base.Seek(savePosition, SeekOrigin.Begin);
return count;
}
public string ReadLine()
{
bool found = false;
@ -74,7 +52,7 @@ namespace YY.EventLogAssistant.Services
}
}
for (int max = _Index + _Read; _Index < max; )
for (int max = _Index + _Read; _Index < max;)
{
char ch = (char)_Bff[_Index];
_Read--; _Index++;
@ -103,5 +81,39 @@ namespace YY.EventLogAssistant.Services
_Base = null;
}
}
#endregion
#region Private Methods
private long IGetCount(long goToLine, bool stopWhenLine)
{
_Base.Seek(0, SeekOrigin.Begin);
_CurrentPosition = 0;
_CurrentLine = 0;
_Index = 0;
_Read = 0;
long savePosition = _Base.Length;
do
{
if (_CurrentLine == goToLine)
{
savePosition = _CurrentPosition;
if (stopWhenLine) return _CurrentLine;
}
}
while (ReadLine() != null);
long count = _CurrentLine;
_CurrentLine = goToLine;
_Base.Seek(savePosition, SeekOrigin.Begin);
return count;
}
#endregion
}
}

9
YY.EventLogAssistant/YY.EventLogAssistant/Services/StreamReaderExtensions.cs
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@ -7,10 +7,16 @@ namespace YY.EventLogAssistant.Services
{
internal static class StreamReaderExtensions
{
#region Private Member Variables
readonly static FieldInfo charPosField = typeof(StreamReader).GetField("_charPos", BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.DeclaredOnly);
readonly static FieldInfo byteLenField = typeof(StreamReader).GetField("_byteLen", BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.DeclaredOnly);
readonly static FieldInfo charBufferField = typeof(StreamReader).GetField("_charBuffer", BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.DeclaredOnly);
#endregion
#region Public Methods
public static long GetPosition(this StreamReader reader)
{
int byteLen = (int)byteLenField.GetValue(reader);
@ -41,6 +47,7 @@ namespace YY.EventLogAssistant.Services
stream.ReadLine();
}
}
}
#endregion
}
}