[ExtractorCollection] Add unit-test to verify only specific extractor is used

Authored by bruns on Nov 1 2018, 5:42 PM.

Description

[ExtractorCollection] Add unit-test to verify only specific extractor is used

Summary: If there is a direct match, only the matching extractor plugin should be used

Reviewers: Frameworks, astippich

Reviewed By: astippich

Subscribers: kde-frameworks-devel, Baloo

Tags: Frameworks, Baloo

Differential Revision: https://phabricator.kde.org/D16592