Below is the main class :
object HelloWorld {
def hello() = "Hello "
}
Below is test suite:
import org.scalatest.{Matchers, FunSuite}
class HelloWorldTest extends FunSuite with Matchers {
test("Say Hi!") {
HelloWorld.hello() should be ("Hello, World!")
}
}
I wanted to run the test cases from Intellij. I tried configuration type ScalaTest and Application and the configuration package does not appear to select.
How to run the test cases from Intellij
Not sure if I got you right but you can do it in multiple ways:
Right click on HelloWorldTest and choose Run
Right click on the file name on the project file tree and click Run
You can select Run in toolbar => Edit Configurations => + on left up side => ScalaTest => give it a name and write HelloWorldTest in "Test class:" => Ok and then Run and run again and choose the name you gave it
Related
I have a legacy Scala project to work with using maven as build tool.
Initially there is core code only under folder structure src/main/scala/ with package x.y.z and a file Main.scala with code as:
object Main {
def cube(x: Int) = {
x * x * x
}
}
There are no tests for the code. So I manually added a folder structure as test/scala under src.
Then I copied the package as for core code, ie x.y.z and added MainTest.scala with test code as:
class MainTest extends FunSuite {
test("Main.cube") {
assert(Main.cube(3) === 27)
}
}
Running test gives error as:
Error:(8, 12) not found: value Main
assert(Main.cube(3) === 27)
Why do I get this error?
For below project structure MainTest.scala and Main.scala are in the same package x.y.z therefore no package import is required, However MainTempTest.scala and Main.scala are in different package therefore an explicit import has to be done import x.y.z.Main
src
-main
--scala
---x.y.z
----Main.scala
-test
--scala
---MainTempTest.scala
---x.y.z
----MainTest.scala
I have a Scala- / Mill-Project that I wan't to import into VSCode.
The Metals Doctor gives me the following warnings:
Is there something missing in my project?
Here is my Mill configuration (build.sc):
import mill._
import mill.define.Target
import scalalib._
trait MyModule extends ScalaModule {
def scalaVersion = "2.13.1"
object version {
val cats = "2.0.0"
..
}
object libs {
val cats = ivy"org.typelevel::cats-core:${version.cats}"
..
}
object test extends Tests {
...
}
}
object entity extends MyModule {
override def ivyDeps = {
Agg(
libs.cats,
..
)
}
}
object macros extends MyModule {
..
}
Here is the whole project: https://github.com/pme123/zio-examples
The console output shows no warnings, here is the end:
...
time: connected to build server in 0.33s
time: imported build in 0.41s
time: indexed workspace in 3.85s
no build target: /Users/mpa/dev/Github/pme123/zio-examples/build.sc
This error/help message is misleading, as it presumes you are using Bloop, in which case re-importing solves the isssue (from experience). When you are using Mill's built-in BSP server, this won't change much.
Mill's recent 0.10.0-M4 release got a major BSP revamp. Also Metals improved it's Mill support. So you should have a better overall experience.
Here is some documentation: https://com-lihaoyi.github.io/mill/mill/Intro_to_Mill.html#_build_server_protocol_bsp
I have an eclipse scala project which uses maven. Eclipse plugins for ScalaIDE and Scalatest are installed. I have tests like:
import org.scalatest._
class ExampleSpec extends FlatSpec with Matchers {
feature("Feature A Test") {
scenario("Foo scenario 1") {
val a = FooClass().getResult()
a.count shouldBe 1 // IDE shows error: value shouldBe is not a member of Long
a(0).getString(0) shouldBe "FOO" // IDE shows error: value shouldBe is not a member of String
}
}
}
The maven compilation and the tests run fine, but in eclipse when I open this file, I see an error in eclipse wherever I am using a Matcher as mentioned in the comments above. Eg.
value shouldBe is not a member of Long
What am I missing? A scala test file shows hundreds of problems.
After adding the following dummy code:
case class Bar() {
def count = Array(Bar())
def getString(x: Int) = Array("aqq")
def apply[T](x: Int) = this
}
case class FooClass() {
def getResult() = Bar()
}
and changing FlatSpec to FeatureSpec as this is the syntax you are using in your ExampleSpec, the code compiles without any issues.
If it's still not the case for you I can suggest creating simple build.sbt and generating project with Eclipse sbt plugin.
I know this is old, but I had the same issue with eclipse (late 2018), and I was able to fix this by making sure the test was NOT in the default package. That is, add "package org.scalatest.examples.flatspec" to the beginning of your test, as an example, and move the test into that package.
I want to write a test that calls a remote server and validates the response because the server may change (it's not under my control). To do this I figure I'd give it a tag (RemoteTest) and then exclude it when calling the runner:
sbt> test-only * -- -l RemoteTest
However, when doing this all my tests are run, including RemoteTest. How do I call the runner from within sbt so that it is excluded?
If you have the following:-
package com.test
import org.scalatest.FlatSpec
import org.scalatest.Tag
object SlowTest extends Tag("com.mycompany.tags.SlowTest")
object DbTest extends Tag("com.mycompany.tags.DbTest")
class TestSuite extends FlatSpec {
"The Scala language" must "add correctly" taggedAs(SlowTest) in {
val sum = 1 + 1
assert(sum === 2)
}
it must "subtract correctly" taggedAs(SlowTest, DbTest) in {
val diff = 4 - 1
assert(diff === 3)
}
}
To exclude DbTest tag, you would do:-
test-only * -- -l com.mycompany.tags.DbTest
Note that you'll need to include the full tag name. If it's still not working for you, would you mind sharing part of source code that's not working?
I'm using Scala Test Spec and JunitTestRunner in Eclipse. Where does the spec output go? And is there some way to route it to the console?
For example:
val p = new SQLParser
describe("given a sql string with an order clause") {
describe("(when direction is asc)") {
val sql = "select name from users order by name asc"
it("should be parsed into an Asc object containing the given field") {
val query = p.parse(sql).get
query.operation should be (Select("name"))
query.from should be (From("users"))
query.order should be (Option(Asc("name")))
}
}
}
Only gives me the spec output from the first "describe".
That's about all you would want there, but I was hoping to see it all.
The output comes out in the JUnit view. If I use:
import org.scalatest.Spec
import org.junit.runner.RunWith
import org.scalatest.junit.JUnitRunner
#RunWith(classOf[JUnitRunner])
class ExampleSpec extends Spec {
describe("A Stack") {
it("should pop values in last-in-first-out order")(pending)
it("should throw NoSuchElementException if an empty stack is popped")(pending)
}
}
And then do run as JUnit, I get the following output from the JUnit view:
Is this not what you want?