fix(unit_test): frontmatter parse test

makefile

@@ -2,8 +2,8 @@
 
 test: test-unit test-integration
 
-#test-unit:
+test-unit:
-	#go test ./test/test_unit/...
+	go test ./test/test_unit/...
 
 test-integration:
 	go test ./test/test_integration/...

test/test_unit/frontmatter_test.go

@@ -0,0 +1,33 @@
+package filehandling
+
+import (
+	"testing"
+
+	filehandling "github.com/KristianJBorgwarth/dendrite.daemon/core/file_handling"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestParseTags_ValidFrontMatter_ReturnsTags(t *testing.T) {
+	input := `---
+title: My Note
+tags: ["test", "note"]
+---
+This is the content of the note.`
+
+	result, err := filehandling.ParseFrontMatter([]byte(input))
+
+	require.NoError(t, err)
+	assert.Equal(t, "My Note", result.Title)
+	assert.Equal(t, []string{"test", "note"}, result.Tags)
+}
+
+func TestParseTags_MissingDelimiter_ReturnsError(t *testing.T) {
+	input := `title: My Note
+tags: ["test", "note"]
+This is the content of the note.`
+
+	_, err := filehandling.ParseFrontMatter([]byte(input))
+
+	assert.ErrorContains(t, err, "missing front matter delimiter")
+}