How to set System property for a scalatest from sbt command line

scala sbt scalatest

11,350

Solution 1

Your third way almost works (if fork in Test := true is set). But you have to change into the project first:

sbt/sbt  '; project mllib; set javaOptions in Test  +="-Dtest.num.points=500000"; \
test-only org.apache.spark.mllib.optimization.LBFGSSuite'

Solution 2

This worked for me:

val myFoo = sys.props("foo.property")

and:

SBT_OPTS="-Dfoo.property=foo" sbt "testOnly *your_test_package*"

11,350

Author by

WestCoastProjects

R/python/javascript recently and before that Scala/Spark. Machine learning and data pipelines apps.

Updated on June 14, 2022

Comments

WestCoastProjects almost 2 years
A ScalaTest suite is using
```
 System.getProperty("my.command-line.property")
```
What is the sbt command line to achieve this setting?

I have tried
```
SBT_OPTS="-Dmy.command-line.property=foo" sbt "test-only <path to test suite"
```
Also:
```
JAVA_OPTS="-J-Dmy.command-line.property=foo" sbt "test-only <path to test suite"
```
Finally:
```
sbt/sbt  '; set javaOptions in Test  +="-Dtest.num.points=500000"; \
project mllib; test-only org.apache.spark.mllib.optimization.LBFGSSuite'
```
When using any of those attempts the System.getProperty comes up blank.

An approach that does work is running the ScalaTest from within Intellij and setting the JVM parameters to -Dmy.command-line.property=foo within the Run Configuration.
WestCoastProjects about 9 years

Your answers are not addressing the particulars of this question: runMain is not applicable to scalatest
Sudheer Aedama about 9 years

@javadba I did not give you the direct answer. You could have guessed the answer, :) If not see my EDIT 2
WestCoastProjects about 9 years

I partially agree: was molding my command line that way to see if scalatest can work with it. Update: that approach does not apparently work with scalatest.
WestCoastProjects over 8 years

Inside a scalatest suite?
user1859675 over 8 years

The first line inside your test code, the second line command line (how to set your property and limit the test execution only to your desired package)
Mingo almost 6 years

Edit 2 would work on unix but not on windows, as need double quote wrapper, any ideas on how could make this work on windows?
Troy Daniels over 4 years

Is there a way to apply that to every project? I am trying to set a flag that limits logging during the CI build, but I wan't it set in every project. And since it is only for CI, I need a command line option