descriptor.setScmReleaseLabel( "release-label" );
ScmFileSet fileSet = new ScmFileSet( rootProject.getFile().getParentFile(), rootProject.getFile() );
Mock scmProviderMock = new Mock( ScmProvider.class );
Constraint[] arguments = new Constraint[]{new IsAnything(), new IsScmFileSetEquals( fileSet ), new IsNull(),
new IsEqual( "[maven-release-manager] prepare for next development iteration" )};
scmProviderMock
.expects( new InvokeOnceMatcher() )
.method( "checkIn" )
.with( arguments )