ArtifactResolutionResult res = collect(createSet(new Object[] {a.artifact, b.artifact}));
        assertEquals(createSet(new Object[] {a.artifact, b.artifact}), res.getArtifacts(), "Check artifact list");
        assertEquals("3.8.1", getArtifact("junit", res.getArtifacts()).getVersion(), "Check version");
        assertEquals(
                Artifact.SCOPE_TEST, getArtifact("junit", res.getArtifacts()).getScope(), "Check artifactScope");