I'm trying to set up an automated unit test using MSTest. I have single tests working, and am now trying to set up parameterised tests using < DataTestMethod> and < DataRow(...)>. I'm following the examples here
When I debug the test sequence below, the ParseTestData( ) is only called once, with the first <DataRow ..> parameter. It is not called a second time.
Can anyone see where I'm going wrong?
(Note: I found some articles indicating DataTestMethod is obsolete, and TestMethod works just the same. I tried and got identical results)
[edit] - from #Mark Seemann 's suggestion, I've simplified this from the original post. Same problem.
Imports Microsoft.VisualStudio.TestTools.UnitTesting
Namespace TestDecoder.Tests
<TestClass>
Public Class DecoderTests
Private DecoderInstance
<DataTestMethod>
<DataRow(New Byte() {&H41})>
<DataRow(New Byte() {&H42})>
Public Sub ParseTestData(Frame() As Byte)
Dim result As Boolean
DecoderInstance = New Decoder()
result = DecoderInstance.parse(Frame(0))
Assert.IsTrue(result, "Failed the dummy test")
End Sub
End Class
End Namespace
I'm not sure if this will provide any more insight, but here is the Decoder code (Edited for Brevity).
Imports Microsoft.VisualBasic
Public Class Decoder
Function parse(rxchar As Byte) As Boolean
Return rxchar = &H41
End Function
End Class
Related
The names make it sound like some sort of event handler.
Both were identified as an interface from Shell32 using the code below:
I can't find either of these in the MSDN libraries. Google returned some pages with code where they appeared, but I didn't see anything that really described the interface.
Public Sub ListTypes()
Dim NS As String = "Shell32"
For Each t As Type In Assembly.GetExecutingAssembly().GetTypes()
If (t.IsClass Or t.IsInterface) And t.Namespace = NS Then
Debug.Print(t.Name)
End If
Next
End Sub
Based on the definition in ShlDisp.h it appears to simply be a thin wrapper around IDispatch with a different GUID.
MIDL_INTERFACE("62112AA2-EBE4-11cf-A5FB-0020AFE7292D")
DShellFolderViewEvents : public IDispatch
{
};
It seems to be used in obtaining event notification from the shell - Raymond Chen's blog has some example code.
This question is about a different instance that im trying to instantiate...
I have to get the "Read" function from my Cardreader class and return a string to it on the form1.vb .... Now i did what i can remeber but for some reason i'm having a problem with the brackets.... What can i do to fix this?
Form1.vb
ThisATM.getCardReader.Readr("TEST TEXT IS FUN")
CardReader.vb
Public Function Readr(ByVal card As KeyCard) As String
Return Read
End Function
Link for the image of the card reader function. I thought this link of the image of the code would be easier to understand.
The Readr function takes an KeyCard as parameter, not an string. So it seems like you have to create an instance to an KeyCard and use that as a parameter instead. In the code in the image you provided you are creating a keycard object, it seems like you should use that object in the Readr function like this:
Dim ThisKeyCard as new KeyCard("1234","5678","Mikki Monster")
Dim returnString as string=ThisATM.getCardReader.Readr(ThisKeyCard)
Sorry, this can be a basic question for advanced VB.NET programmers but I am a beginner in VB.NET so I need your advice.
I have a web application and the login is required for some specific pages. To check if the user is logged in, the old programmer used this technique:
Dim sv As New WL.SessionVariables(Me.Context)
If Not (sv.IsLoggedIn) Then
Response.Redirect(WL.SiteMap.GetLoginURL())
End If
Well, I have to use this Logged In checking in a handler done by me and I tried this:
Public Class CustomHandler
Implements System.Web.IHttpHandler, IReadOnlySessionState
Sub ProcessRequest(ByVal context As HttpContext) Implements IHttpHandler.ProcessRequest
Dim sv As New WL.SessionVariables(context)
If Not (sv.IsLoggedIn) Then
context.Response.Write("No access unless you're the CEO!!!" & sv.IsLoggedIn)
ElseIf sv.IsLoggedIn Then
DownloadFile(context)
Else
End If
End Sub
//other code
End Class
Well, the "is logged in" checking is always false (even after I login) and I think it's an issue with the context. So all the other pages works fine with logging checking but this handler have this specific issue.
Can you guys give a helping hand?
UPDATE:
The logged in is done trough this method:
Public Sub SetCreditialCookie(ByVal accountID As Integer)
Me.AccountID = accountID
m_context.Session.Item("loggedInAccount") = accountID
m_context.Response.Cookies.Add(New System.Web.HttpCookie("account_id", CStr(m_context.Session.Item("account_id"))))
m_context.Response.Cookies("account_id").Expires = DateTime.Now.AddDays(5)
End Sub
and to check it it's logged in, this method is called:
Public Function IsLoggedIn() As Boolean
If Not m_context.Session.Item("loggedInAccount") Is Nothing And Me.AccountID = m_context.Session.Item("loggedInAccount") Then
Return True
Else
Return False
End If
End Function
UPDATE 2:
- debugging the code shown that there were multiple kind of logins and I was checking the wrong one with the session.
Due to the use of IReadOnlySessionState, is it possible that the SessionVariables class attempts in some way to modify the Session, which in turn causes an error (possibly handled and not visible to you).
If this is the case it could mean that the IsLoggedIn property is not correctly initialised, or does not function as expected?
Do you have access to the code for the class. If so, try debugging it to see what is happening.
Ok, I am trying to teach myself testing using a mock framework and I work in VB.NET, I am new to lambda expressions and all my previous applications were written in version 2005 or earlier. I now have 2010.
So I have tried Rhino.Mocks but found it difficult to get my head around it mostly because of the older syntax. Since, no-one seems to be bloggin in VB.NET these days, I have been looking at C# examples and trying to figure out what is going on.
So I have a situation where I pass an interface to the constructor of a class and hold a refrence to that interface. When an method is called on the object and event is raise that should be handled by the class that implements the inteface.
I was having trouble, so I tried to create a simple version in C# and repeat the steps in vb.net.
So my interface:
public interface IBroadcastClient
{
void MessageReceivedHandler(string msg);
}
The class that raises the events:
public class Broadcaster
{
public Broadcaster(IBroadcastClient c)
{
_client= c;
this.SendMessage += new MessageReceived(_client.MessageReceivedHandler);
}
private IBroadcastClient _client;
public event MessageReceived SendMessage;
public void SendMessageNow()
{
string _Message;
if (SendMessage != null)
{
_Message = #"Yay!";
SendMessage(_Message);
}
}
}
The test:
[TestMethod]
public void TestSendMessageWithIgnoreParameter()
{
//string msg = #"Yay!";
var client = A.Fake<IBroadcastClient>();
Broadcaster b = new Broadcaster(client);
b.SendMessageNow();
A.CallTo(() => client.MessageReceivedHandler(A<string>.Ignored)).MustHaveHappened();
}
This passes, no problems so far.
Now to try the same this in vb.net;
The same interface and broadcaster class, just in vb.net rather than C# with initially hte following unit test.
<TestMethod()>
Public Sub TestMethod1()
Dim client = A.Fake(Of IBroadcastClient)()
Dim b As New Broadcaster(client)
b.SendMessageNow()
NextCall.To(client).MustHaveHappened()
client.MessageReceivedHandler(A(Of String).Ignored)
End Sub
This fails with the following error message;
" Assertion failed for the following call:
TestFakeItEasyVB.IBroadcastClient.MessageReceivedHandler(msg: )
Expected to find it at least once but found it #0 times among the calls:
1: TestFakeItEasyVB.IBroadcastClient.MessageReceivedHandler(msg: "Yay!")"
Funnily enough writing it this way;
<TestMethod()>
Public Sub TestMethod3()
Dim client = A.Fake(Of IBroadcastClient)()
Dim b As New Broadcaster(client)
b.SendMessageNow()
A.CallTo(Sub() client.MessageReceivedHandler(A(Of String).Ignored)).MustNotHaveHappened()
End Sub
Will also fail with the same error message, however, this version of the test passes.
<TestMethod()>
Public Sub TestMethod2()
Dim client = A.Fake(Of IBroadcastClient)()
Dim b As New Broadcaster(client)
b.SendMessageNow()
NextCall.To(client).MustHaveHappened()
client.MessageReceivedHandler("Yay!")
End Sub
This variation also passes in C#, my quandry is what am I doing wrong to get the test to ignore the argument passed to the faked event handler?
The NextCall-syntax is there for legacy reasons, it's better to use the expression syntax:
A.CallTo(Sub() client.MessageReceivedHandler(A(Of String).Ignored)).MustNotHaveHappened()
In your tests above all others has MustHaveHappened, but this specific one has MustNotHaveHappened, I guess that's why your test is failing. I've compiled your code and run it and once it's changed to MustHaveHappened the test passes.
Currently you can not use argument constraints in the VB-specific "NextCall"-syntax. However you can use the method "WhenArgumentsMatch" to rewrite your first test like this:
<TestMethod()>
Public Sub TestMethod1()
Dim client = A.Fake(Of IBroadcastClient)()
Dim b As New Broadcaster(client)
b.SendMessageNow()
NextCall.To(client).WhenArgumentsMatch(Function(a) a.Get(Of String)(0) = "Yay!").MustHaveHappened()
client.MessageReceivedHandler(Nothing)
End Sub
Or you could use the extension "WithAnyArguments" to ignore all arguments:
<TestMethod()>
Public Sub TestMethod1()
Dim client = A.Fake(Of IBroadcastClient)()
Dim b As New Broadcaster(client)
b.SendMessageNow()
NextCall.To(client).WithAnyArguments().MustHaveHappened()
client.MessageReceivedHandler(Nothing)
End Sub
The following code has two flaws, I can't figure out if they are bugs or by design. From what I have seen it should be possible to write back to the app.config file using the Configuration.Save and according to http://www.codeproject.com/KB/cs/SystemConfiguration.aspx the code should work.
The bugs are shown in the source below and appear when you try to set the property or save the config back out.
Imports System.Configuration
Public Class ConfigTest
Inherits ConfigurationSection
<ConfigurationProperty("JunkProperty", IsRequired:=True)> _
Public Property JunkProperty() As String
Get
Return CStr(Me("JunkProperty"))
End Get
Set(ByVal value As String)
' *** Bug 1, exception ConfigurationErrorsException with message "The configuration is read only." thrown on the following line.
Me("JunkProperty") = value
End Set
End Property
Public Sub Save()
Dim ConfigManager As Configuration = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None)
' The add / remove is according to http://www.codeproject.com/KB/cs/SystemConfiguration.aspx
ConfigManager.Sections.Remove("ConfigTest")
' *** Bug 2, exception InvalidOperationException thrown with message "Cannot add a ConfigurationSection that already belongs to the Configuration."
ConfigManager.Sections.Add("ConfigTest", Me)
ConfigManager.Save(ConfigurationSaveMode.Full, True)
End Sub
Public Shared Sub Main()
Dim AppConfig As ConfigTest = TryCast(ConfigurationManager.GetSection("ConfigTest"), ConfigTest)
AppConfig.JunkProperty = "Some test data"
AppConfig.Save()
End Sub
' App.Config should be:
' <?xml version="1.0" encoding="utf-8" ?>
'<configuration>
' <configSections>
' <section name="ConfigTest" type="ConsoleApp.ConfigTest, ConsoleApp" />
' </configSections>
' <ConfigTest JunkProperty="" />
'</configuration>
End Class
I'd like to do it this way so that on the first run of the app I check for the properties and then tell the user to run as admin if they need to be set, where the UI would help them with the settings. I've already 'run as admin' to no effect.
Your code doesn't really make any sense. I took your example code and turned it into a simple example that works. Please note this is not best practise code, merely an example to aid you on your journey of learning the configuration API.
Public Class ConfigTest
Inherits ConfigurationSection
<ConfigurationProperty("JunkProperty", IsRequired:=True)> _
Public Property JunkProperty() As String
Get
Return CStr(Me("JunkProperty"))
End Get
Set(ByVal value As String)
' *** Bug 1, exception ConfigurationErrorsException with message "The configuration is read only." thrown on the following line.
Me("JunkProperty") = value
End Set
End Property
Public Overrides Function IsReadOnly() As Boolean
Return False
End Function
Public Shared Sub Main()
Dim config As Configuration = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None)
Dim AppConfig As ConfigTest = config.GetSection("ConfigTest")
AppConfig.JunkProperty = "Some test data"
config.Save()
End Sub
End Class
This code will open the config file, modify the attribute JunkProperty and persist it back it the executable's configuration file. Hopefully this will get you started- it looks like you need to read about the configuration API a bit more.
I've used the API to create configuration sections for large scale enterprise apps, with several 1000 of lines of custom hierarchical config (my config was readonly though). The configuration API is very powerful once you've learnt it. One way I found out more about its capabilities was to use Reflector to see how the .NET framework uses the API internally.
Maybe you don't know Portuguese or c# but this is you want http://www.linhadecodigo.com.br/Artigo.aspx?id=1613
using BuildProvider from asp.net
After loading a configuration it is readonly by default, principally because you have not overriden the IsReadOnly property. Try to override it.
¿Is there something that prevents you from using a setting?
Looks like it is not possible by design. App.config is normally protected as it resides along with the app in the Program Files directory so must be amended at installation time by the installer.
Pity really, I'd like the app to have settings that an admin can set.
Sorry if I didn't understand your case, but yes, you can change App.config at runtime.
Actually, you will need to change YourApp.exe.config, because once your app is compiled, App.config contents are copied into YourApp.exe.config and your application never looks back at App.config.
So here's what I do (C# code - sorry, I still haven't learnt VB.Net)
public void UpdateAppSettings(string key, string value)
{
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.Load(AppDomain.CurrentDomain.SetupInformation.ConfigurationFile);
foreach (XmlElement item in xmlDoc.DocumentElement)
{
foreach (XmlNode node in item.ChildNodes)
{
if (node.Name == key)
{
node.Attributes[0].Value = value;
break;
}
}
}
using (StreamWriter sw = new StreamWriter(AppDomain.CurrentDomain.SetupInformation.ConfigurationFile))
{
xmlDoc.Save(sw);
}