ScalaTest and IntelliJ - Running one Test at a time - intellij-idea

I have a ScalaTest which extends the FlatSpec. I have many tests inside the test and I now want to have the possibility to run one test at a time. No matter what I do, I can't get IntelliJ to do it. In the Edit Configurations of the test, I can specify that it should run one test at a time by giving the name of the test. For example:
it should "test the sample multiple times" in new MyDataHelper {
...
}
where I gave the name as "test the sample multiple times", but it does not seem to take that and all I get to see is that it just prints Empty Test Suite. Any ideas how can this be done?

If using Gradle, go to Preferences > Build, Execution, Deployment > Build Tools > Gradle and in the Build and run > Run tests using: section, select IntelliJ IDEA if you haven't already.

An approach that works for me is to right-click (on Windows) within the definition of the test, and choose "Run MyTestClass..." -- or, equivalently, Ctrl-Shift-F10 with the cursor already inside the test. But it's a little delicate and your specific example may be causing your problem. Consider:
class MyTestClass extends FlatSpec with Matchers {
"bob" should "do something" in {
// ...
}
it should "do something else" in {
// ...
}
"fred" should "do something" in {
// ...
}
it should "do something else" in {
// ...
}
}
I can use the above approach to run any of the four tests individually. Your approach based on editing configurations works too. But if I delete the first test I can't run the second one individually -- the others are still fine. That's because a test that starts with it is intended to follow one that doesn't -- then the it is replaced with the appropriate string in the name of the test.
If you want to run the tests by setting up configurations, then the names of these four tests are:
bob should do something
bob should do something else
fred should do something
fred should do something else
Again, note the substitution for it -- there's no way to figure out the name of a test starting with it if it doesn't follow another test.
I'm using IntelliJ Idea 13.1.4 on Windows with Scala 2.10.4, Scala plugin 0.41.1, and ScalaTest 2.1.0. I wouldn't be surprised if this worked less well in earlier versions of Idea or the plugin.

I just realized that I'm able to run individual tests with IntelliJ 13.1.3 Community Edition. With the one that I had earlier 13.0.x, it was unfortunately not possible.

Related

how to run only one test in scalatest/playspec

My spec file has several tests
"HomeController index page" should {
"have title Welcome " in {
....
}
"Home controller " should {
"render homepage with csrfToken" in {
...
}
To run the tests in IntelliJ, I right-click on the spec file and select run. But this runs all the tests. Is there a way to select tests and run only the selected ones?
You should be able to run individual tests by placing the cursor inside the test method and pressing Ctrl+Shift+F10 or by creating the ScalaTest run/debug configuration where you can specify the test name to run.
See also Test scopes in Scala section in the documentation:

Running a main-like in a non-main package

We have a package with a fair number of complex tests. As part of the test suite, they run on builds etc.
func TestFunc(t *testing.T) {
//lots of setup stuff and defining success conditions
result := SystemModel.Run()
}
Now, for one of these tests, I want to introduce some kind of frontend which will make it possible for me to debug a few things. It's not really a test, but a debug tool. For this, I want to just run the same test but with a Builder pattern:
func TestFuncWithFrontend(t *testing.T) {
//lots of setup stuff and defining success conditions
result := SystemModel.Run().WithHTTPFrontend(":9999")
}
The test then would only start if I send a signal via HTTP from the frontend. Basically WithHTTPFrontend() just waits with a channel on a HTTP call from the frontend.
This of course would make the automated tests fail, because no such signal will be sent and execution will hang.
I can't just rename the package to main because the package has 15 files and they are used elsewhere in the system.
Likewise I haven't found a way to run a test only on demand while excluding it from the test suite, so that TestFuncWithFrontend would only run from the commandline - I don't care if with go run or go test or whatever.
I've also thought of ExampleTestFunc() but there's so much output produced by the test it's useless, and without defining Output: ..., the Example won't run.
Unfortunately, there's also a lot of initialization code at (private, i.e. lower case) package level that the test needs. So I can't just create a sub-package main, as a lot of that stuff wouldn't be accessible.
It seems I have three choices:
Export all this initialization variables and code with upper case, so that I could be using it from a sub-main package
Duplicate the whole code.
Move the test into a sub-package main and then have a func main() for the test with Frontend and a _test.go for the normal test, which would have to import a few things from the parent package.
I'd rather like to avoid the second option...And the first is better, but isn't great either IMHO. I think I'll go for the third, but...
am I missing some other option?
You can pass a custom command line argument to go test and start the debug port based on that. Something like this:
package hello_test
import (
"flag"
"log"
"testing"
)
var debugTest bool
func init() {
flag.BoolVar(&debugTest, "debug-test", false, "Setup debugging for tests")
}
func TestHelloWorld(t *testing.T) {
if debugTest {
log.Println("Starting debug port for test...")
// Start the server here
}
log.Println("Done")
}
Then if you want to run just that specific test, go test -debug-test -run '^TestHelloWorld$' ./.
Alternatively it's also possible to set a custom environment variable that you check in the test function to change behaviour.
I finally found an acceptable option. This answer
Skip some tests with go test
brought me to the right track.
Essentially using build tags which would not be present in normal builds but which I can provide when executing manually.

Jenkins' EnvInject Plugin does not persist values

I have a build that uses EnvInject Plugin to set an environmental value.
A different job needs to scan last good Jenkins build of that job and get the value of that environmental variable.
This all works well, except sometimes the variable will disappear from build history. It seems that after some time passes, when I look at the 'Environment variables' section in build history, the injected value simply disappears.
How can I make this persist? Is this a bug, or part of the design?
If it make any difference, the value of the injected variable is +1500 chars and in the following format: 'component1=1.1.2;component2=1.1.3,component3=4.1.2,component4=1.1.1,component4=1.3.2,component4=1.1.4'
Looks like EnvInject and/or JobDSL have a bug.
Steps to reproduce:
Set up a job that runs this JobDSL:
job('run_deploy_mock') {
steps {
environmentVariables {
env('deployedArtifacts', 'component1=1.0.0.2')
}
}
}
Run it and it will create a job called 'deploy_mock'
Run the 'deploy_mock' job. After build #1 is done, go to build details and check 'Environmental Variables' section for an entry called 'component1'
Run the JobDSL job again
Check 'Environmental Variables' section for 'deploy_mock' build #1. The 'component1' variable is now missing.
If I substitute the '=' for something else, it works as expected.
Created Jenkins Jira

how to debug a single testng test with parameters in intelliJ without using #Optional?

I have following test case that I want to debug in IntelliJ. I don't want to use #Optional("defaultValue") annotation because I want to debug the test with a real value that changes every time I debug. It is not handy to set default values every time I want to run tests.
#Test(parameters = { "param1"})
public void testExmaple(String param1){
//do something with param1
}
So, Is there are way to define the test data somewhere in intelliJ so that when I right-click and debug, it should pick the value i.e. param1 ? Or may be there is a testng plugin to do that ?
NOTE: I don't want to use command-line maven+surefire
Just configure the parameters part of the IntelliJ runner: https://www.jetbrains.com/help/idea/2016.1/run-debug-configuration-testng.html?origin=old_help#config

Maven an java.io.scanner(System.in)

I'm running into issues with my project. When running in Netbeans it seems to work fine with user interaction. However when I run using mvn test it does not. I see the command line menu but I am not prompted to make a selection. When I force terminate the project, I get an error about No Line Found.
Any Ideas? I'm stumped.
The line that isn't working is essentially:
System.out.print("1) Print String\n"
+ "0) Exit\n"
+ "Enter Selection: ");
String line = (new java.util.Scanner(System.in)).nextLine();
I see the output Similar to this:
1) Print String
0) Exit
But I don't see "Enter Selection: " and it doesn't prompt for the String input. I terminate and get "No Line Found" though after I cancel the execution I see the whole string int he "Test Results window".
It's abnormal for unit tests to pause for user interaction. I wouldn't be surprised if it acts strangely. I expect the testing libraries don't really anticipate this sort of thing.
In practice, one should not interact with user while performing JUnit tests. Tests should be designed to operate automatically and continuously. If you want to test underlying code with two separate values, two tests should be implemented and call each the underlying code with their own value. This should cover for the two options offered to your user.