diff --git a/scm-plugins/scm-git-plugin/src/test/java/sonia/scm/repository/spi/GitRevisionExtractorTest.java b/scm-plugins/scm-git-plugin/src/test/java/sonia/scm/repository/spi/GitRevisionExtractorTest.java
new file mode 100644
index 0000000000..514d777f2a
--- /dev/null
+++ b/scm-plugins/scm-git-plugin/src/test/java/sonia/scm/repository/spi/GitRevisionExtractorTest.java
@@ -0,0 +1,30 @@
+package sonia.scm.repository.spi;
+
+import org.eclipse.jgit.revwalk.RevCommit;
+import org.junit.jupiter.api.Test;
+
+import java.util.Optional;
+
+import static org.assertj.core.api.Assertions.assertThat;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+public class GitRevisionExtractorTest {
+
+  @Test
+  void shouldReturnRevisionFromRevCommit() {
+    RevCommit revCommit = mock(RevCommit.class);
+    Optional<RevCommit> optionalRevCommit = Optional.of(revCommit);
+    when(revCommit.toString()).thenReturn("commit 123456abcdef -t 4561");
+    String revision = GitRevisionExtractor.extractRevisionFromRevCommit(optionalRevCommit);
+    assertThat(revision).isEqualTo("123456abcdef");
+  }
+
+  @Test
+  void shouldReturnEmptyStringIfRevCommitNotAvailable() {
+    Optional<RevCommit> optionalRevCommit = Optional.empty();
+    String revision = GitRevisionExtractor.extractRevisionFromRevCommit(optionalRevCommit);
+    assertThat(revision).isEqualTo("");
+  }
+
+}