8 Commits

Author SHA1 Message Date
Josh Creek 4b8acdf4d9 feat(*): Update DisposableStopWatch to work without a logger 2021-12-14 22:52:16 +00:00
Josh Creek d8ab65334a fix(*): Add missing argument 2021-12-14 18:54:03 +00:00
Josh Creek a44420e81d feat(*): Update readme with disposable stopwatch extensions 2021-12-14 18:49:30 +00:00
Josh Creek 3940aaf966 feat(*): Add DisposableStopWatchExtension class 2021-12-14 18:49:03 +00:00
Josh Creek aabbfcaf70 feat(*): Update readme with exception extensions 2021-11-28 22:07:13 +00:00
Josh Creek 7b585dfc1e build(*): Update package version 2021-11-28 22:02:21 +00:00
Josh Creek eb463a0f36 feat(*): Add ExceptionExtension unit tests 2021-11-28 22:02:07 +00:00
Josh Creek 7037e2dc5e feat(*): Add ExceptionExtension class 2021-11-28 22:01:57 +00:00
5 changed files with 403 additions and 2 deletions
@@ -19,11 +19,12 @@
<PackageLicenseFile>LICENSE</PackageLicenseFile>
<RepositoryType>git</RepositoryType>
<PackageTags>creek</PackageTags>
<Version>1.2.0</Version>
<AssemblyVersion>1.2.0.0</AssemblyVersion>
<Version>1.4.3</Version>
<AssemblyVersion>1.4.0.3</AssemblyVersion>
</PropertyGroup>
<ItemGroup>
<PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="6.0.0" />
<PackageReference Include="Microsoft.SourceLink.GitHub" Version="1.0.0">
<PrivateAssets>all</PrivateAssets>
<IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
@@ -0,0 +1,79 @@
using System;
using System.Diagnostics;
using Microsoft.Extensions.Logging;
namespace Creek.HelpfulExtensions
{
public class DisposableStopWatch : IDisposable
{
private readonly ILogger _logger;
private Stopwatch _stopWatch;
private string _message;
private bool _useConsole;
private bool _useConsoleOnly;
public DisposableStopWatch(ILogger logger, string message = null, bool useConsole = false)
{
_logger = logger;
_useConsoleOnly = false;
_stopWatch = new Stopwatch();
_message = message ?? string.Empty;
_useConsole = useConsole;
string startMessage = $"Start: {message}";
if (_useConsole)
{
_logger.LogInformation(startMessage);
Console.WriteLine(startMessage);
}
else
{
_logger.LogInformation(startMessage);
}
_stopWatch.Start();
}
public DisposableStopWatch(string message = null)
{
_useConsoleOnly = true;
_stopWatch = new Stopwatch();
_message = message ?? string.Empty;
string startMessage = $"Start: {message}";
Console.WriteLine(startMessage);
_stopWatch.Start();
}
public void Dispose()
{
_stopWatch.Stop();
string endMessage = $"Complete:{_message}: Elapsed: {_stopWatch.Elapsed}";
if (_useConsoleOnly)
{
Console.WriteLine(endMessage);
}
else if (_useConsole)
{
_logger.LogInformation(endMessage);
Console.WriteLine(endMessage);
}
else
{
_logger.LogInformation(endMessage);
}
}
}
public static class DisposableStopWatchExtension
{
public static DisposableStopWatch DisposableStopWatch(this ILogger logger, string message = null, bool useConsole = false) => new DisposableStopWatch(logger, message, useConsole);
public static DisposableStopWatch DisposableStopWatch(this string message) => new DisposableStopWatch(message);
}
}
@@ -0,0 +1,78 @@
using System;
using System.Collections.Generic;
using System.Text;
namespace Creek.HelpfulExtensions
{
public static class ExceptionExtension
{
/// <summary>
/// Returns a string of the message of the first/root/base exception in an exception stack.
/// </summary>
/// <param name="ex">The Exception stack to find the first/root/base exception within.</param>
/// <returns>Returns the first/root/base exception message string.</returns>
public static string BaseExceptionMessage(this Exception ex)
{
Exception baseEx = ex.GetBaseException();
return baseEx.Message;
}
/// <summary>
/// Returns a single string of the message and stack trace of the first/root/base exception in an exception stack.
/// </summary>
/// <param name="ex">The Exception stack to find the first/root/base exception within.</param>
/// <returns>Returns the first/root/base exception message and stack trace as a single string, separated by " :: ".</returns>
public static string BaseExceptionMessageAndStackTrace(this Exception ex)
{
Exception baseEx = ex.GetBaseException();
return GenerateMessageAndStackTraceString(baseEx);
}
/// <summary>
/// Returns a list of the exception messages of each nested exception in an exception stack.
/// </summary>
/// <param name="ex">The Exception stack.</param>
/// <returns>Returns a list of the exception messages of each nested exception in an exception stack.</returns>
public static List<string> AllInnerExceptionMessages(this Exception ex)
{
return GetAllInnerExceptionMessagesAndStackTraces(ex, includeStackTraces: false);
}
/// <summary>
/// Returns a list of single strings of the message and stack trace of each nested exception in an exception stack.
/// </summary>
/// <param name="ex">The Exception stack.</param>
/// <returns>Returns a list with a string for each nested exception in an exception stack containing the exception message and stack trace as a single string, separated by " :: ".</returns>
public static List<string> AllInnerExceptionMessagesAndStackTraces(this Exception ex)
{
return GetAllInnerExceptionMessagesAndStackTraces(ex, includeStackTraces: true);
}
private static List<string> GetAllInnerExceptionMessagesAndStackTraces(Exception ex, bool includeStackTraces)
{
List<string> exceptionMessagesAndStackTraces = new List<string>();
Exception inner = ex.InnerException;
exceptionMessagesAndStackTraces.Add(
includeStackTraces ? GenerateMessageAndStackTraceString(ex)
: ex.Message);
while (inner != null)
{
exceptionMessagesAndStackTraces.Add(
includeStackTraces ? GenerateMessageAndStackTraceString(inner)
: inner.Message);
inner = inner.InnerException;
}
// We've now reached the end of the exceptions, so can return the error messages
return exceptionMessagesAndStackTraces;
}
private static string GenerateMessageAndStackTraceString(Exception ex)
{
return $"{ex.Message} :: {ex.StackTrace}";
}
}
}
+99
View File
@@ -68,3 +68,102 @@ You can also set SystemTime.Now to any function that returns a DateTime:
var startDate = new DateTime(2021, 9, 2);
SystemTime.Now = () => startDate.AddDays(2);
```
## Exception Extensions
### BaseExceptionMessage
Returns a string of the message of the first/root/base exception in an exception stack.
```csharp
try
{
...
}
catch (Exception ex)
{
string baseExceptionMessage = ex.BaseExceptionMessage();
...
}
```
### BaseExceptionMessageAndStackTrace
Returns a single string of the message and stack trace of the first/root/base exception in an exception stack.
```csharp
try
{
...
}
catch (Exception ex)
{
string baseExceptionMessageAndStackTrace = ex.BaseExceptionMessageAndStackTrace();
...
}
```
### AllInnerExceptionMessages
Returns a list of the exception messages of each nested exception in an exception stack.
```csharp
try
{
...
}
catch (Exception ex)
{
List<string> allInnerExceptionMessages = ex.AllInnerExceptionMessages();
...
}
```
### AllInnerExceptionMessagesAndStackTraces
Returns a list of single strings of the message and stack trace of each nested exception in an exception stack.
```csharp
try
{
...
}
catch (Exception ex)
{
List<string> allInnerExceptionMessagesAndStackTraces = ex.AllInnerExceptionMessagesAndStackTraces();
...
}
```
## Logging Extensions
### DisposableStopWatchExtension
This extends `ILogger` with a timer that can wrap code with a using statement. It was heavily inspired by James Curran's [blog post](https://honestillusion.com/2021/12/14/Simple-timings.html). With this extension you can quickly, easily and cleanly stick `StopWatch` objects around code that you wish to time.
```csharp
using (_logger.DisposableStopWatch())
{
...
}
```
It takes in additional parameters for a message and whether or not to also write to a Console for quick and dirty iterating.
```csharp
using (_logger.DisposableStopWatch("A message", true))
{
...
}
```
You can also make use of it without a logger for very barebones console applications.
```csharp
using ("A message".DisposableStopWatch())
{
...
}
```
You get a `Start:` log, with the message appended if you've passed it, and once your code within the using block has run you get `Complete:` with the messaged appended if you've passed it, then on the same line `Elapsed:` and the time elapsed in HH:MM:SS:MS..... format.
+144
View File
@@ -0,0 +1,144 @@
using NUnit.Framework;
using Creek.HelpfulExtensions;
using System;
using System.Collections.Generic;
namespace UnitTests
{
public class ExceptionExtensionTests
{
[SetUp]
public void Setup()
{
}
[Test]
public void ShouldReturnBaseExceptionMessage()
{
try
{
// This function calls another that forces a
// division by 0.
Rethrow();
}
catch (Exception ex)
{
string baseExceptionMessage = ex.BaseExceptionMessage();
Assert.AreEqual("Attempted to divide by zero.", baseExceptionMessage);
}
}
[Test]
public void ShouldReturnBaseExceptionMessageAndStackTrace()
{
try
{
// This function calls another that forces a
// division by 0.
Rethrow();
}
catch (Exception ex)
{
string baseExceptionMessageAndStackTrace = ex.BaseExceptionMessageAndStackTrace();
StringAssert.StartsWith("Attempted to divide by zero.", baseExceptionMessageAndStackTrace);
Assert.AreNotEqual("Attempted to divide by zero.", baseExceptionMessageAndStackTrace);
}
}
[Test]
public void ShouldReturnAllInnerExceptionMessages()
{
try
{
// This function calls another that forces a
// division by 0.
Rethrow();
}
catch (Exception ex)
{
List<string> allInnerExceptionMessages = ex.AllInnerExceptionMessages();
List<string> expected = new List<string>()
{
"Caught the second exception and threw a third in response.",
"Forced a division by 0 and threw a second exception.",
"Attempted to divide by zero.",
};
CollectionAssert.AreEqual(expected, allInnerExceptionMessages);
}
}
[Test]
public void ShouldReturnAllInnerExceptionMessagesAndStackTraces()
{
try
{
// This function calls another that forces a
// division by 0.
Rethrow();
}
catch (Exception ex)
{
List<string> allInnerExceptionMessagesAndStackTraces = ex.AllInnerExceptionMessagesAndStackTraces();
List<string> expected = new List<string>()
{
"Caught the second exception and threw a third in response.",
"Forced a division by 0 and threw a second exception.",
"Attempted to divide by zero.",
};
foreach (var (baseExceptionMessageAndStackTrace, index) in allInnerExceptionMessagesAndStackTraces.WithIndex())
{
StringAssert.StartsWith(expected[index], baseExceptionMessageAndStackTrace);
Assert.AreNotEqual(expected[index], baseExceptionMessageAndStackTrace);
}
}
}
// This function catches the exception from the called
// function DivideBy0( ) and throws another in response.
private void Rethrow()
{
try
{
DivideBy0();
}
catch (Exception ex)
{
throw new ThirdLevelException("Caught the second exception and threw a third in response.", ex);
}
}
// This function forces a division by 0 and throws a second
// exception.
private void DivideBy0()
{
try
{
int zero = 0;
int ecks = 1 / zero;
}
catch (Exception ex)
{
throw new SecondLevelException("Forced a division by 0 and threw a second exception.", ex);
}
}
// Define two derived exceptions to demonstrate nested exceptions.
private class SecondLevelException : Exception
{
public SecondLevelException(string message, Exception inner)
: base(message, inner)
{ }
}
private class ThirdLevelException : Exception
{
public ThirdLevelException(string message, Exception inner)
: base(message, inner)
{ }
}
}
}