Class files are missing in code coverage result - visual-studio

I have a number of classes in my project. When I check Code Coverage result after running the unit test cases, it does not show all the classes. I am not sure what are the criteria on which the code coverage process the class files.
I read somewhere that if you have not created the test cases for a class file in your Test project it will not be covered in the code coverage. But for me it does not seem true as I can see the the class files even though those are not in the test project.

there are couple of ways to exclude files from code coverage, most popular being an attribute:
[ExcludeFromCodeCoverage]

A bit late in the day, but if you have a class that consists entirely of auto-properties, then this class won't be included in the code coverage stats.
Included
private int _seq;
public int InvoiceSequenceNumber
{
get
{
return _seq;
}
set
{
_seq = value;
}
}
Not included
public int InvoiceSequenceNumber { get; set; }

Related

ExcelDna - Excel can't access function in base class

When Excel tries to call a method in a abstract base class i get a Run-Time error
"Cannot run Marco 'MarcoName'. The macro may not be available"
I can run code from the super class.
The code is similar to this
public abstract class MyBaseClass
{
public static bool MyMethod(string path)
{
if(Valid(path))
{return true;}
return false;
}
}
This code is in a separate assembly imported via a nuget package
The calling code is similar to the below
public class MyClass : MyBaseClass
{
public static bool MyOtherMethod()
{
return true;
}
}
Marking the methods with the "[ExcelFunction]" attribute has no effect.
I am loading the xll file like so,
Application.RegisterXLL (path)
I call the method like so,
Application.Run("MyMethod", path)
Only code in assemblies that are included in the <ExternalLibrary ... /> list in the .dna file are scanned for functions to register. Maybe your external assembly is not mentioned there.
Also, abstract types were not always considered. It looks like this changed at some point, if I look at the code that scans the assemblies here: https://github.com/Excel-DNA/ExcelDna/blob/57c2d0a499a044f6cd1c4ae2c9fbf5b084159dea/Source/ExcelDna.Integration/AssemblyLoader.cs#L93
So it might depend on your Excel-DNA version too.
Easiest might be to have a class with all the functions you want to export, where you can add the Excel-specific attributes (<ExcelFunction .../>) and just forward the calls internally.

Does Processing 3 have class declarations?

Our school project has us make a game using Processing 3. After some studying with the language, our team is pretty confident we can work with the project, though we do have certain reservations of the chosen language.
However, there is one major question we are wondering and could not find an answer. In C++ and many others, when you create a new class in a new file you also create a header file you can include. Does Processing 3 have something similar? I know you can "include" files by adding more tabs, which is still weird but whatever. We would like to have some sort of declarations in advance so we can comment/describe classes and their methods, rather than force each member go through lots of code to find the proper point.
In short, we want to be able to do something like this:
Example.pde
class Example {
//Description
Example();
//Description
void doSomething(int variable);
}
//Other team members don't have to worry past this,
//as they have already seen the public interface
Example::Example()
{
//Constructor
}
void Example::doSomething(int variable)
{
//Function
}
Or do we have to always to like this:
Example.pde
class Example {
//Description
Example()
{
//Constructor
}
//Description
void doSomething(int variable)
{
//Function
}
}
Processing is written in Java, so you can only do things that Java supports. Java does not support header files, so no, you can't use header files in Processing.
However, it sounds like what you're really looking for is an interface.
interface Example {
void doSomething(int variable);
}
class MyExample implements Example{
public MyExample(){
//Constructor
}
void doSomething(int variable){
//Function
}
}
With this, you would only need to show other team members the interface, not the class. As long as they program to the interface, they don't need to ever see the class implementation.
More info on interfaces can be found in the Processing reference.

testng specify different Users

I am running our automated tests using TestNG. The reason we picked TestNG is because we can send variables inputs into the test methods example public void testXX( String userId ) and the userId can change for each test.
The code below shows three different userIds I can use to execute my tests. So my exact same test will run three times for each of the three different users. This feature is awesome and really enables me to have multiple tests under different scenarios because each of our users carry different profiles.
// All valid Pricing Leads
#DataProvider(name = "userIds")
public Object[][] createPricingLeadUsersParameters() {
return new Object[][] {
{ "TestUser001" },
{ "TestUser002" },
{ "TestUser003" }
};
}
#Test( dataProvider = "userIds" )
public void createGroup( String userIds) {
............
}
The problem I am having right now is during certain conditions I can only have one userId used or else all of my tests will fail. I would like to keep my exact same test but only pass in on userId not the three shown above. It there a way to configure TestNG to make this variable on the command line so at times I would use the three defined, but under another condition it would only be one of the three or a new userId?
Sure, there are plenty of ways to do this. How about passing a system property when you run TestNG?
java -Dfoo=bar org.testng.TestNG...
and then your data provider can test the value of foo with System.getProperty() and adjust what it returns accordingly.

OpenCover showing 0 lines covered with mstest

'here is output...'
Loading C:\TEMP\BankDemo_mstest\Test_BankDemo\bin\Debug\Test_BankDemo.dll...
Starting execution...
Results Top Level Tests
------- ---------------
Error Test.BankDemo.AccountTest.CreditTest
Error Test.BankDemo.AccountTest.DebitTest
Error Test.BankDemo.AccountTest.FreezeTest
0/3 test(s) Passed, 3 Error
Summary
-------
Test Run Error.
Error 3
--------
Total 3
This is the command I used
OpenCover\OpenCover.Console.exe -register:user
-output:"Codecoverage.xml"
-mergebyhash
-target:"C:\Program Files\Microsoft Visual Studio 10.0\Common7\IDE\MSTest.exe"
targetargs:"/testcontainer:
"C:\TEMP\BankDemo_mstest\Test_BankDemo\bin\Debug\Test_BankDemo.dll"
/noisolation"
-filter:"-[Bank.*]* +[Bank*]* +[Bank.Accounts*]* -[Test.BankDemo*]*"
ReportGenerator\bin\ReportGenerator.exe Codecoverage.xml Coverage HTML
(I have even tried regsvr32 to register the profile and I am using XP)
actually I am beginner to Nunit,mstest and opencoverage and I found sample Unit test case at http://www.nunit.org/index.php?p=quickStart&r=2.4 so
** Nunit test class is as below**
private TestContext testContextInstance;
public TestContext TestContext
{
get { return testContextInstance; }
set { testContextInstance = value; }
}
private int store;
[TestInitialize()]
public void TestFixtureSetUp()
{
store = 1;
}
the above class works fine with Nunit and Opencoverage also showing accurate data but same class after replacing mstest specific attributes didn't worked so after posting this questin I figured it that this method has to be static and added TestContext argument. so I made code changes(in bold) as below and above command worked fine.
MSTest class
private TestContext testContextInstance;
public TestContext TestContext
{
get { return testContextInstance; }
set { testContextInstance = value; }
}
[ClassInitialize()]
public **static** void ClassInit(**TestContext context**)
{
}
Your tests aren't failing -- they're erroring, meaning there appears to be a problem compiling the test project. It stands to reason that you'll get no coverage if the tests cannot be built and executed.
2 reasons could be for this however I suspect your filters are wrong, as described in the usage the filters are
(+/-)[assembly/module filter]namespace.typefilter
and exclusion filters take precedence over inclusion filters
So your -[Bank.*]* is excluding types before the +[Bank.Accounts*]* (and probably +[Bank*]*) can take effect. As the default filter +[*]* is only added if you have no other extra filters, other than the default ones, then you should only need to add filters for the modules you wish to profile i.e. +[Bank.*]*
If you open up the XML output then if a class is filtered out then a reason is supplied via the skippedDueTo attribute.
The other reason could be due to missing PDB files not in the folder of the assembly (some test harnesses copy assemblies to other folders - but I see you are using the /noisolation switch - so this shouldn't be it)
Please feel free to discuss or if you think there is a big raise the issue on the OpenCover GitHub site

Duplicate the behaviour of a data driven test

Right now, if you have a test that looks like this:
[TestMethod]
[DeploymentItem("DataSource.csv")]
[DataSource(
Microsoft.VisualStudio.TestTools.DataSource.CSV,
"DataSource.csv",
"DataSource#csv",
DataAccessMethod.Sequential)]
public void TestSomething()
{
string data = TestContext.DataRow["ColumnHeader"].ToString();
/*
do something with the data
*/
}
You'll get as many tests runs as you have data values when you execute this test.
What I'd like to do is duplicate this kind of behaviour in code while still having a datasource. For instance: let's say that I want to run this test against multiple deployed versions of a web service (this is a functional test, so nothing is being mocked - ie. it could very well be a codedui test against a web site deployed to multiple hosts).
[TestMethod]
[DeploymentItem("DataSource.csv")]
[DataSource(
Microsoft.VisualStudio.TestTools.DataSource.CSV,
"DataSource.csv",
"DataSource#csv",
DataAccessMethod.Sequential)]
public void TestSomething()
{
var svc = helper.GetService(/* external file - NOT a datasource */);
string data = TestContext.DataRow["ColumnHeader"].ToString();
/*
do something with the data
*/
}
Now, if I have 2 deployment locations listed in the external file, and 2 values in the datasource for the testmethod, I should get 4 tests.
You might be asking why I don't just add the values to the datasource. The data in the external file will be pulled in via the deployment items in the .testsettings for the test run, because they can and will be defined differently for each person running the tests and I don't want to force a rebuild of the test code in order to run the tests, or explode the number of data files for tests. Each test might/should be able to specify which locations it would like to test against (the types are known at compile-time, not the physical locations).
Likewise, creating a test for each deployment location isn't possible because the deployment locations can and will be dynamic in location, and in quantity.
Can anyone point me to some info that might help me solve this problem of mine?
UPDATE! This works for Visual Studio 2010 but does not seem to work on 2012 and 2013.
I had a similar problem where I had a bunch of files I wanted to use as test data in a data driven test. I solved it by generating a CSV file before executing the data driven test. The generation occurs in a static method decorated with the ClassInitialize attribute.
I guess you could basically do something similar and merge your current data source with your "external file" and output a new CSV data source that your data driven test use.
public TestContext TestContext { get; set; }
const string NameColumn = "NAME";
const string BaseResourceName = "MyAssembly.UnitTests.Regression.Source";
[ClassInitialize()]
public static void Initialize(TestContext context)
{
var path = Path.Combine(context.TestDeploymentDir, "TestCases.csv");
using (var writer = new StreamWriter(path, false))
{
// Write column headers
writer.WriteLine(NameColumn);
string[] resourceNames = typeof(RegressionTests).Assembly.GetManifestResourceNames();
foreach (string resourceName in resourceNames)
{
if (resourceName.StartsWith(BaseResourceName))
{
writer.WriteLine(resourceName);
}
}
}
}
[TestMethod]
[DataSource("Microsoft.VisualStudio.TestTools.DataSource.CSV", "|DataDirectory|\\TestCases.csv", "TestCases#csv", DataAccessMethod.Random)]
public void RegressionTest()
{
var resourceName = TestContext.DataRow[NameColumn].ToString();
// Get testdata from resource and perform test.
}

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