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  • Are unit tests also used to find bugs?

    - by Draco
    I was reading the following article and the author made it quite clear that unit tests are NOT used to find bugs. I would like to know what your thoughts are on this. I do know that unit tests makes the design of your application much more robust but isn't it the fact that finding bugs through unit tests that make the application robust, besides its other advantages? http://blog.stevensanderson.com/2009/08/24/writing-great-unit-tests-best-and-worst-practises/

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  • Prevent Visual Studio Web Test from changing request details

    - by keithwarren7
    I have a service that accepts Xmla queries for Analysis services, often times those queries themselves will have a string that contains a fragment that looks something like {{[Time].[Year].[All]}} Recording these requests works fine but when I try to re-run the test I get an error from the test runner... Request failed: Exception occurred: There is no context parameter with the name ' [Time].[Year].[All]' in the WebTestContext This was confusing for some time but when I asked VS to generate a coded version of the test I was able to see the problem a bit better. VS searches for the '{{' and '}}' tokens and makes changes, considering those areas to refer to Context parameters, the code looks like this.Context["\n\t[Time].[Year].[All]"].ToString() Anyone know how to instruct Visual Studio to not perform this replacement operation? Or another way around this issue?

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  • Proper way to assert type of variable in Python

    - by Morlock
    In using a function, I wish to ensure that the type of the variables are as expected. How to do it right? Here is an example fake function trying to do just this before going on with its role: def my_print(text, begin, end): """Print text in UPPER between 'begin' and 'end' in lower """ for i in (text, begin, end): assert type(i) == type("") out = begin.lower() + text.upper() + end.lower() print out Is this approach valid? Should I use something else than type(i) == type("") ? Should I use try/except instead? Thanks pythoneers

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  • Spec. for JUnit XML Output

    - by Gilad Naor
    Where can I find the specification of JUnit's XML output. My goal is to write a UnitTest++ XML reporter which produced JUnit like output. See: "Unable to get hudson to parse JUnit test output XML" and "http://stackoverflow.com/questions/411218/hudson-c-and-unittest"

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  • How to compare the output of serializeArray using qunit

    - by dorelal
    I am using qunit and jquery. Latest version of both. In my code when I submit the form I have the event as e. I call e.serializeArray() Here is my test. equals(args.data, [ { "name": "user_name", "value": "john" } ], 'input data'); And this is the error message from qunit. expected: [ { "name": "user_name", "value": "david" } ] result: [ { "name": "user_name", "value": "david" } ] As you can see to the naked eye the expected and result value is same but qunit is not liking it. I guess I am missing something.

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  • Setting up a web developer lab for learning purposes

    - by Saleh Al-Abbas
    I'm not a developer by profession. Therefore, I'm not exposed to real world technical problems that face professional developers. I read/heard about web farms, integration between different systems, load balancing ... etc. Therefore, I was wondering if there are ways for the individual developer to create an environment that simulates real world situations with minimal number of machines like: web farms & caching simulating many users accessing your website (Pressure tests?) Performance load balancing anything you think I should consider. By the way, I have a server machine and 1 PC. and I don't mind investing in tools and software. PS. I'm using Microsoft technologies for development but I hope this is not a limiting factor. Thanks

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  • Get list of named queries in NHibernate

    - by Dan
    I have a dozen or so named queries in my NHibernate project and I want to execute them against a test database in unit tests to make sure the syntax still matches the changing domain/database model. Currently I have a unit test for each named query where I get and execute the query, for example: IQuery query = session.GetNamedQuery("GetPersonSummaries"); var personSummaryArray = query.List(); Assert.That(personSummaryArray, Is.Not.Null); This works fine, but I would like to have one unit test that loops thru all of the named queries and executes them. Is there a way to discover all of the available named queries? Thanks Dan

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  • How do I assert that two arbitrary type objects are equivalent, without requiring them to be equal?

    - by Tomas Lycken
    To accomplish this (but failing to do so) I'm reflecting over properties of an expected and actual object and making sure their values are equal. This works as expected as long as their properties are single objects, i.e. not lists, arrays, IEnumerable... If the property is a list of some sort, the test fails (on the Assert.AreEqual(...) inside the for loop). public void WithCorrectModel<TModelType>(TModelType expected, string error = "") where TModelType : class { var actual = _result.ViewData.Model as TModelType; Assert.IsNotNull(actual, error); Assert.IsInstanceOfType(actual, typeof(TModelType), error); foreach (var prop in typeof(TModelType).GetProperties()) { Assert.AreEqual(prop.GetValue(expected, null), prop.GetValue(actual, null), error); } } If dealing with a list property, I would get the expected results if I instead used CollectionAssert.AreEquivalent(...) but that requires me to cast to ICollection, which in turn requries me to know the type listed, which I don't (want to). It also requires me to know which properties are list types, which I don't know how to. So, how should I assert that two objects of an arbitrary type are equivalent? Note: I specifically don't want to require them to be equal, since one comes from my tested object and one is built in my test class to have something to compare with.

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  • What sort of Circular Dependencies does Oracle allow?

    - by Neil
    Hi all, I am creating test cases and I need to cover circular dependencies. So far I have been able to create two tables such that Table A has a FK to B and B has a FK to A. What other circular dependencies exist / are allowed between objects? I tried to create cycles between Views but Oracle successfully rejected that.

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  • Difficulty thinking of properties for FsCheck

    - by Benjol
    I've managed to get xUnit working on my little sample assembly. Now I want to see if I can grok FsCheck too. My problem is that I'm stumped when it comes to defining test properties for my functions. Maybe I've just not got a good sample set of functions, but what would be good test properties for these functions, for example? //transforms [1;2;3;4] into [(1,2);(3,4)] pairs : 'a list -> ('a * 'a) list //' //splits list into list of lists when predicate returns // true for adjacent elements splitOn : ('a -> 'a -> bool) -> 'a list -> 'a list list //returns true if snd is bigger sndBigger : ('a * 'a) -> bool (requires comparison)

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  • How do I pipe the Java console output to a file?

    - by Ced
    I found a bug in an application that completely freezes the JVM. The produced stacktrace would provide valuable information for the developers and I would like to retrieve it from the Java console. When the JVM crashes, the console is frozen and I cannot copy the contained text anymore. Is there way to pipe the Java console directly to a file or some other means of accessing the console output of a Java application? Update: I forgot to mention, without changing the code. I am a manual tester. Update 2: This is under Windows XP and it's actually a web start application. Piping the output of javaws jnlp-url does not work (empty file).

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  • Mockito verify no more interactions but omit getters

    - by michael lucas
    Mockito api provides method: Mockito.verifyNoMoreInteractions(someMock); but is it possible in Mockito to declare that I don't want more interactions with a given mock with the exceptions of interactions with its getter methods? The simple scenario is the one in which I test that sut changes only certain properties of a given mock and lefts other properties untapped. In example I want to test that UserActivationService changes property Active on an instance of class User but does't do anything to properties like Role, Password, AccountBalance, etc. I'm open to criticism regarding my approach to the problem.

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  • Weirdness with cabal, HTF, and HUnit assertions

    - by rampion
    So I'm trying to use HTF to run some HUnit-style assertions % cat tests/TestDemo.hs {-# OPTIONS_GHC -Wall -F -pgmF htfpp #-} module Main where import Test.Framework import Test.HUnit.Base ((@?=)) import System.Environment (getArgs) -- just run some tests main :: IO () main = getArgs >>= flip runTestWithArgs Main.allHTFTests -- all these tests should fail test_fail_int1 :: Assertion test_fail_int1 = (0::Int) @?= (1::Int) test_fail_bool1 :: Assertion test_fail_bool1 = True @?= False test_fail_string1 :: Assertion test_fail_string1 = "0" @?= "1" test_fail_int2 :: Assertion test_fail_int2 = [0::Int] @?= [1::Int] test_fail_string2 :: Assertion test_fail_string2 = "true" @?= "false" test_fail_bool2 :: Assertion test_fail_bool2 = [True] @?= [False] And when I use ghc --make, it seems to work correctly. % ghc --make tests/TestDemo.hs [1 of 1] Compiling Main ( tests/TestDemo.hs, tests/TestDemo.o ) Linking tests/TestDemo ... % tests/TestDemoA ... * Tests: 6 * Passed: 0 * Failures: 6 * Errors: 0 Failures: * Main:fail_int1 (tests/TestDemo.hs:9) * Main:fail_bool1 (tests/TestDemo.hs:12) * Main:fail_string1 (tests/TestDemo.hs:15) * Main:fail_int2 (tests/TestDemo.hs:19) * Main:fail_string2 (tests/TestDemo.hs:22) * Main:fail_bool2 (tests/TestDemo.hs:25) But when I use cabal to build it, not all the tests that should fail, fail. % cat Demo.cabal ... executable test-demo build-depends: base >= 4, HUnit, HTF main-is: TestDemo.hs hs-source-dirs: tests % cabal configure Resolving dependencies... Configuring Demo-0.0.0... % cabal build Preprocessing executables for Demo-0.0.0... Building Demo-0.0.0... [1 of 1] Compiling Main ( tests/TestDemo.hs, dist/build/test-demo/test-demo-tmp/Main.o ) Linking dist/build/test-demo/test-demo ... % dist/build/test-demo/test-demo ... * Tests: 6 * Passed: 3 * Failures: 3 * Errors: 0 Failures: * Main:fail_int2 (tests/TestDemo.hs:23) * Main:fail_string2 (tests/TestDemo.hs:26) * Main:fail_bool2 (tests/TestDemo.hs:29) What's going wrong and how can I fix it?

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  • Perl unit test - start a tcp server & continue

    - by John
    I am trying to write a unit test for a client server application. To test the client, in my unit test, I want to first start my tcp server (which itself is another perl file). I tried to start the tcp server by forking: if (! fork()) { system ("$^X server.pl") == 0 or die "couldn't start server" } So when I call "make test" after "perl Makefile.PL", this test starts & I can see the server starting but after that the unit test just hangs there. So I guess I need to start this server in background and I tried the "&" at the end to force it to start in background & then test to continue. But, I still couldn't succeed. What am I doing wrong? Thanks.

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  • UnitTest ExpectedException with multiple Exceptions

    - by masterchris_99
    I want one TestMethod for multiple exceptions. The Problem ist that the Testmethod stops after the first thrown exception. I know that I can do something like that: try { sAbc.ToInteger(); Assert.Fail(); // If it gets to this line, no exception was thrown } catch (ArgumentException) { } But I want to use the following code-base: [TestMethod, ExpectedException(typeof(ArgumentException), "...")] public void StringToIntException() { sAbc.ToInteger(); // throws an exception and stops here sDecimal.ToInteger(); // throws theoretically a exception too... } And I don't want to create one testmethod for each possible exception like that: [TestMethod, ExpectedException(typeof(ArgumentException), "...")] public void StringToIntException() { sAbc.ToInteger(); } [TestMethod, ExpectedException(typeof(ArgumentException), "...")] public void StringToIntException() { sDecimal.ToInteger(); }

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  • DSL to generate test data

    - by queen3
    There're several ways to generate data for tests (not only unit tests), for example, Object Mother, builders, etc. Another useful approach is to write test data as plain text: product: Main; prices: 145, 255; Expire: 10-Apr-2011; qty: 2; includes: Sub product: Sub; prices: 145, 255; Expire: 10-Apr-2011; qty: 2 and then parse it into C# objects. This is easy to use in unit tests (because deep inner collections can be written in single line), this is even more convenient to use in FitNesse-like system (because this DSL naturally fits into wiki), and so on. So I use this and write parser, but it's tedious to write each time. I'm not a big expert in DSL/language parsers, but I think they can help here. What would be the right one to use? I only heard about: DSL (I mean, any DSL) Boo (that I think can do DSL) ANTLR but I don't even know which one to pick and where to start. So the question: is it reasonable to use some kind of DSL to generate test data? What would you suggest to do so? Are there any existing cases?

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  • How to create contexts in shoulda macros

    - by Honza
    Asking this question again with smaller code sample: # this is a dummy shoulda macro that creates a context def self.macro_context context "macro" do yield end end # i am expecting this test to fail within the macro context context "some context" do macro_context do should "test" do fail end end end So what I would expect is to see: 1) Error: test: some context macro context should test. (TestClassName) But I am getting only this: So what I would expect is to see: 1) Error: test: some context should test. (TestClassName) Any idea what am I doing wrong?

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  • Running PHP Zend Test in Eclipse

    - by Carlos Eiroa
    Is it possible to run PHP Zend test cases (those that extend Zend_Test_PHPUnit_ControllerTestCase, etc.) through Eclipse PDT? I would like to be able to run them in a similar fashion as you run JUnit tests in Eclipse, by right-clicking the test file and selecting "Run as a JUnit test case." I'd love to see the green or red bar instead of having to go to the command line :). Thanks in advance.

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  • Getting Unit Tests to work with Komodo IDE for Python

    - by devoured elysium
    I've tried to run the following code on Komodo IDE (for python): import unittest class MathLibraryTests(unittest.TestCase): def test1Plus1Equals2(self): self.assertEqual(1+1, 2) Then, I created a new test plan, pointing to this project(file) directory and tried to run it the test plan. It seems to run but it doesn't seem to find any tests. If I try to run the following code with the "regular" run command (F7) class MathLibraryTests(unittest.TestCase): def testPlus1Equals2(self): self.assertEqual(1+1, 2) if __name__ == "__main__": unittest.main() it works. I get the following output: ---------------------------------------------------------------------- Ran 1 test in 0.000s OK What might I be doing wrong?

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  • Unable to use nMock GetProperty routine on a property of an inherited object...

    - by Chris
    I am getting this error when trying to set an expectation on an object I mocked that inherits from MembershipUser: ContactRepositoryTests.UpdateTest : FailedSystem.InvalidProgramException: JIT Compiler encountered an internal limitation. Server stack trace: at MockObjectType1.ToString() Exception rethrown at [0]: at System.Runtime.Remoting.Proxies.RealProxy.HandleReturnMessage(IMessage reqMsg, IMessage retMsg) at System.Runtime.Remoting.Proxies.RealProxy.PrivateInvoke(ref MessageData msgData, Int32 type) at System.Object.ToString() at NMock2.Internal.ExpectationBuilder.On(Object receiver) Here are the tools I am using... VS2008 (SP1) Framework 3.5 nUnit 2.4.8 nMock 2.0.0.44 Resharper 4.1 I am at a loss as to why this would be happening. Any help would be appreciated. Test Class... [TestFixture] public class AddressRepositoryTests { private Mockery m_Mockery; private Data.IAddress m_MockDataAddress; private IUser m_MockUser; [SetUp] public void Setup() { m_Mockery = new Mockery(); m_MockDataAddress = m_Mockery.NewMock<Data.IAddress>(); m_MockUser = m_Mockery.NewMock<IUser>(); } [TearDown] public void TearDown() { m_Mockery.Dispose(); } [Test] public void CreateTest() { string line1 = "unitTestLine1"; string line2 = "unitTestLine2"; string city = "unitTestCity"; int stateId = 1893; string postalCode = "unitTestPostalCode"; int countryId = 223; bool active = false; int createdById = 1; Expect.Once .On(m_MockUser) .GetProperty("Identity") .Will(Return.Value(createdById)); Expect.Once .On(m_MockDataAddress) .Method("Insert") .With( line1, line2, city, stateId, postalCode, countryId, active, createdById, Is.Anything ) .Will(Return.Value(null)); IAddressRepository addressRepository = new AddressRepository(m_MockDataAddress); IAddress address = addressRepository.Create( line1, line2, city, stateId, postalCode, countryId, active, m_MockUser ); Assert.IsNull(address); } } User Class... public interface IUser { int? Identity { get; set; } int? CreatedBy { get; set; } DateTime CreatedOn { get; set; } int? ModifiedBy { get; set; } DateTime? ModifiedOn { get; set; } string UserName { get; } object ProviderUserKey { get; } string Email { get; set; } string PasswordQuestion { get; } string Comment { get; set; } bool IsApproved { get; set; } bool IsLockedOut { get; } DateTime LastLockoutDate { get; } DateTime CreationDate { get; } DateTime LastLoginDate { get; set; } DateTime LastActivityDate { get; set; } DateTime LastPasswordChangedDate { get; } bool IsOnline { get; } string ProviderName { get; } string ToString(); string GetPassword(); string GetPassword(string passwordAnswer); bool ChangePassword(string oldPassword, string newPassword); bool ChangePasswordQuestionAndAnswer(string password, string newPasswordQuestion, string newPasswordAnswer); string ResetPassword(string passwordAnswer); string ResetPassword(); bool UnlockUser(); } public class User : MembershipUser, IUser { #region Public Properties private int? m_Identity; public int? Identity { get { return m_Identity; } set { if (value <= 0) throw new Exception("Address.Identity must be greater than 0."); m_Identity = value; } } public int? CreatedBy { get; set; } private DateTime m_CreatedOn = DateTime.Now; public DateTime CreatedOn { get { return m_CreatedOn; } set { m_CreatedOn = value; } } public int? ModifiedBy { get; set; } public DateTime? ModifiedOn { get; set; } #endregion Public Properties #region Public Constructors public User() { } #endregion Public Constructors } Address Class... public interface IAddress { int? Identity { get; set; } string Line1 { get; set; } string Line2 { get; set; } string City { get; set; } string PostalCode { get; set; } bool Active { get; set; } int? CreatedBy { get; set; } DateTime CreatedOn { get; set; } int? ModifiedBy { get; set; } DateTime? ModifiedOn { get; set; } } public class Address : IAddress { #region Public Properties private int? m_Identity; public int? Identity { get { return m_Identity; } set { if (value <= 0) throw new Exception("Address.Identity must be greater than 0."); m_Identity = value; } } public string Line1 { get; set; } public string Line2 { get; set; } public string City { get; set; } public string PostalCode { get; set; } public bool Active { get; set; } public int? CreatedBy { get; set; } private DateTime m_CreatedOn = DateTime.Now; public DateTime CreatedOn { get { return m_CreatedOn; } set { m_CreatedOn = value; } } public int? ModifiedBy { get; set; } public DateTime? ModifiedOn { get; set; } #endregion Public Properties } AddressRepository Class... public interface IAddressRepository { IAddress Create(string line1, string line2, string city, int stateId, string postalCode, int countryId, bool active, IUser createdBy); } public class AddressRepository : IAddressRepository { #region Private Properties private Data.IAddress m_DataAddress; private Data.IAddress DataAddress { get { if (m_DataAddress == null) m_DataAddress = new Data.Address(); return m_DataAddress; } set { m_DataAddress = value; } } #endregion Private Properties #region Public Constructor public AddressRepository() { } public AddressRepository(Data.IAddress dataAddress) { DataAddress = dataAddress; } #endregion Public Constructor #region Public Methods public IAddress Create(string line1, string line2, string city, int stateId, string postalCode, int countryId, bool active, IUser createdBy) { if (String.IsNullOrEmpty(line1)) throw new Exception("You must enter a Address Line 1 to register."); if (String.IsNullOrEmpty(city)) throw new Exception("You must enter a City to register."); if (stateId <= 0) throw new Exception("You must select a State to register."); if (String.IsNullOrEmpty(postalCode)) throw new Exception("You must enter a Postal Code to register."); if (countryId <= 0) throw new Exception("You must select a Country to register."); DataSet dataSet = DataAddress.Insert( line1, line2, city, stateId, postalCode, countryId, active, createdBy.Identity, DateTime.Now ); return null; } #endregion Public Methods } DataAddress Class... public interface IAddress { DataSet GetByAddressId (int? AddressId); DataSet Update (int? AddressId, string Address1, string Address2, string City, int? StateId, string PostalCode, int? CountryId, bool? IsActive, Guid? ModifiedBy); DataSet Insert (string Address1, string Address2, string City, int? StateId, string PostalCode, int? CountryId, bool? IsActive, int? CreatedBy, DateTime? CreatedOn); } public class Address : IAddress { public DataSet GetByAddressId (int? AddressId) { Database database = DatabaseFactory.CreateDatabase(); DbCommand dbCommand = database.GetStoredProcCommand("prAddress_GetByAddressId"); DataSet dataSet; try { database.AddInParameter(dbCommand, "AddressId", DbType.Int32, AddressId); dataSet = database.ExecuteDataSet(dbCommand); } catch (SqlException sqlException) { string callMessage = "prAddress_GetByAddressId " + "@AddressId = " + AddressId; throw new Exception(callMessage, sqlException); } return dataSet; } public DataSet Update (int? AddressId, string Address1, string Address2, string City, int? StateId, string PostalCode, int? CountryId, bool? IsActive, Guid? ModifiedBy) { Database database = DatabaseFactory.CreateDatabase(); DbCommand dbCommand = database.GetStoredProcCommand("prAddress_Update"); DataSet dataSet; try { database.AddInParameter(dbCommand, "AddressId", DbType.Int32, AddressId); database.AddInParameter(dbCommand, "Address1", DbType.AnsiString, Address1); database.AddInParameter(dbCommand, "Address2", DbType.AnsiString, Address2); database.AddInParameter(dbCommand, "City", DbType.AnsiString, City); database.AddInParameter(dbCommand, "StateId", DbType.Int32, StateId); database.AddInParameter(dbCommand, "PostalCode", DbType.AnsiString, PostalCode); database.AddInParameter(dbCommand, "CountryId", DbType.Int32, CountryId); database.AddInParameter(dbCommand, "IsActive", DbType.Boolean, IsActive); database.AddInParameter(dbCommand, "ModifiedBy", DbType.Guid, ModifiedBy); dataSet = database.ExecuteDataSet(dbCommand); } catch (SqlException sqlException) { string callMessage = "prAddress_Update " + "@AddressId = " + AddressId + ", @Address1 = " + Address1 + ", @Address2 = " + Address2 + ", @City = " + City + ", @StateId = " + StateId + ", @PostalCode = " + PostalCode + ", @CountryId = " + CountryId + ", @IsActive = " + IsActive + ", @ModifiedBy = " + ModifiedBy; throw new Exception(callMessage, sqlException); } return dataSet; } public DataSet Insert (string Address1, string Address2, string City, int? StateId, string PostalCode, int? CountryId, bool? IsActive, int? CreatedBy, DateTime? CreatedOn) { Database database = DatabaseFactory.CreateDatabase(); DbCommand dbCommand = database.GetStoredProcCommand("prAddress_Insert"); DataSet dataSet; try { database.AddInParameter(dbCommand, "Address1", DbType.AnsiString, Address1); database.AddInParameter(dbCommand, "Address2", DbType.AnsiString, Address2); database.AddInParameter(dbCommand, "City", DbType.AnsiString, City); database.AddInParameter(dbCommand, "StateId", DbType.Int32, StateId); database.AddInParameter(dbCommand, "PostalCode", DbType.AnsiString, PostalCode); database.AddInParameter(dbCommand, "CountryId", DbType.Int32, CountryId); database.AddInParameter(dbCommand, "IsActive", DbType.Boolean, IsActive); database.AddInParameter(dbCommand, "CreatedBy", DbType.Int32, CreatedBy); database.AddInParameter(dbCommand, "CreatedOn", DbType.DateTime, CreatedOn); dataSet = database.ExecuteDataSet(dbCommand); } catch (SqlException sqlException) { string callMessage = "prAddress_Insert " + "@Address1 = " + Address1 + ", @Address2 = " + Address2 + ", @City = " + City + ", @StateId = " + StateId + ", @PostalCode = " + PostalCode + ", @CountryId = " + CountryId + ", @IsActive = " + IsActive + ", @CreatedBy = " + CreatedBy + ", @CreatedOn = " + CreatedOn; throw new Exception(callMessage, sqlException); } return dataSet; } }

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