Unit testing my plugin

Plugins Plugin Development
1

Hi all,

I am working on a plugin currently and I would like to unit test it. My code does however depend on sponge(for example retrieving a player by UUID), how should I unit test this? Currently I am using JUnit.

2

You could always create stub classes for whatever Sponge methods you need. In fact that’s probably the best way to get a clean unit test anyway. I haven’t used JUnit myself but I’m sure it supports stubbing.

3

Yeah, but that would require an awfull load of mocks, since you have to mock the Game class, but also the classes in the game class(The server for example)

4

That’s true. The other thing you could do is to actually include the sponge jar file as a dependency in your test, that might be easier. Not as clean though, and a lot harder to inject data for specific tests.

5

Well I did as you first suggested (Mocking everything), and it works quite well, thanks! However, I do get another error now: Could not find org.spongepowered:spongecommon:0.1-SNAPSHOT. Do you now the repository of spongecommon so I can add it to my gradle file?

6

I don’t know it personally. Someone else might.

7

You’re probably meant this:

org.spongepowered:spongecommon:1.0

but you should be building against 2.0 or 2.1-SNAPSHOT as that’s what the current implementation is going for.

8

That still gives the same error error:

package org.spongepowered.common does not exist
import org.spongepowered.common.SpongeGame;

My full build.gradle:

apply plugin: 'java'

version = '1.0'

repositories {
    mavenCentral()
    jcenter()

    maven {
        name 'Sponge Maven repository'
        url 'http://repo.spongepowered.org/maven'
    }

    jar {
        baseName = 'Swordkit'
    }
}

dependencies {
    compile 'org.spongepowered:spongeapi:2.1-SNAPSHOT'
    testCompile 'junit:junit:4.11',
                'org.mockito:mockito-core:1.+',
                'org.powermock:powermock-mockito-release-full:1.6.2',
                'org.spongepowered:spongeapi:2.1-SNAPSHOT'
}
9

Did you reimport it / regeneratre project files via gradlew ideaor gradlew eclipse?

10

No clue

Anyway I fixed it by not using spongecommon but spongeapi for the unittests. Thanks for all the help everyone