Partially. The Linie 1 Testheft is designed for the DTZ exam, which is slightly more focused on Alltag und Beruf (everyday life and work). The Goethe B1 has a different format (e.g., no "letter" but an "email" or "forum post"). That said, 80% of the skills overlap. If you are taking Goethe B1, look for the Mit Erfolg zu Goethe B1 instead.
: Features model tests with original-style tasks, including specific sections for values and orientation knowledge required for integration tests. Audio Resources : Typically includes an Linie 1 B1 Testheft Pdf