scoverage + specs2?

[StarWindMoonCloud]

My project is current using specs2 for unit test and functional test.
I was looking for a tool to report coverage and found Scoverage.

After some initial try, now I'm wondering if scoverage would work upon specs2.
Thus I created a test project as below:
https://github.com/StarWindMoonCloud/scoverage-specs2-test

It's saying "Cannot perform check, instrumentation not performed" when run "mvn scoverage:check", why's that, does it mean scoverage + specs2 won't work?
If that is the case, do you have other recommendation?

risestoke-lm:scoverage-specs2-test qili$ mvn scoverage:check
[INFO]
[INFO] --- maven-specs2-plugin:0.4.2:run-specs (test) @ scoverage-spec2-test ---
[INFO] com.qili.SampleTest:
test input
[INFO] Success: 1 Error: 0 Failure: 0 Skipped: 0
[INFO]
[INFO] <<< scoverage-maven-plugin:1.0.1:check (default-cli) < [scoverage]test @ scoverage-spec2-test <<<
[INFO]
[INFO] --- scoverage-maven-plugin:1.0.1:check (default-cli) @ scoverage-spec2-test ---
[INFO] Cannot perform check, instrumentation not performed - skipping
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS

mvn -v
Apache Maven 3.2.3 (33f8c3e1027c3ddde99d3cdebad2656a31e8fdf4; 2014-08-12T04:58:10+08:00)
Maven home: /usr/local/apache-maven
Java version: 1.8.0_25, vendor: Oracle Corporation
Java home: /Library/Java/JavaVirtualMachines/jdk1.8.0_25.jdk/Contents/Home/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "mac os x", version: "10.9.5", arch: "x86_64", family: "mac"

[gslowikowski]

You missed one requirement - https://github.com/scoverage/scoverage-maven-plugin#scala-version-configuration. I have to highlight it somehow.

There is a line about it In Maven execution log:

[INFO] Skipping SCoverage execution - Scala version not set

I will change log level from INFO to WARN in the future.

In your pom.xml file properties section should look like:

    <properties>
        <scoverage.plugin.version>1.0.1</scoverage.plugin.version>
        <scala.version>2.10.3</scala.version>
    </properties>

and (optionally) scala-library dependency version can be specified using this new property:

        <dependency>
            <groupId>org.scala-lang</groupId>
            <artifactId>scala-library</artifactId>
            <version>${scala.version}</version>
        </dependency>

[gslowikowski]

One more problem, you use very old version of maven-scala-plugin (2.15.2). After changing to:

                <groupId>net.alchim31.maven</groupId>
                <artifactId>scala-maven-plugin</artifactId>
                <version>3.2.0</version>

SCoverage works (groupId and artifactId changed as well).

I will investigate what is the minimum required version of scala-maven-plugin plugin.

[StarWindMoonCloud]

Thank you gslowikowski a lot for the valuable response.
Scoverage is working well now.

But I disagree w/ your first comment, scala version is actually set (https://github.com/StarWindMoonCloud/scoverage-specs2-test/blob/master/pom.xml#L19), looks to me scoverage is not reporting correctly here.

[gslowikowski]

1. I've checked, required scala-maven-plugin version is 3.0.0+
2. plugin does not search for scala-lang:scala-library dependency to check it's version; maybe it could, but only when declared directly, for technical reasons transitive dependencies cannot be checked

Can we close this issue?

[gslowikowski]

1.0.2 version released. You don't have to use property to define Scala version, plugin checks direct dependencies, if no version defined using a property or plugin configuration parameter.

[StarWindMoonCloud]

Sounds cool, thank you for the quick fix