diff --git a/internal/entity/description_test.go b/internal/entity/description_test.go
new file mode 100644
index 000000000..137d2f9a3
--- /dev/null
+++ b/internal/entity/description_test.go
@@ -0,0 +1,92 @@
+package entity
+
+import (
+	"github.com/stretchr/testify/assert"
+	"testing"
+)
+
+func TestDescription_FirstOrCreate(t *testing.T) {
+	description := &Description{PhotoID: 123, PhotoDescription: ""}
+	err := description.FirstOrCreate()
+	if err != nil {
+		t.Fatal("error")
+	}
+}
+
+func TestDescription_NoDescription(t *testing.T) {
+	t.Run("no description", func(t *testing.T) {
+		description := &Description{PhotoID: 123, PhotoDescription: ""}
+
+		assert.Equal(t, true, description.NoDescription())
+	})
+	t.Run("description", func(t *testing.T) {
+		description := &Description{PhotoID: 123, PhotoDescription: "test", PhotoKeywords: "test cat dog", PhotoSubject: "animals", PhotoArtist: "Bender", PhotoNotes: "notes", PhotoCopyright: "copy"}
+
+		assert.Equal(t, false, description.NoDescription())
+	})
+}
+
+func TestDescription_NoKeywords(t *testing.T) {
+	t.Run("no keywords", func(t *testing.T) {
+		description := &Description{PhotoID: 123, PhotoDescription: ""}
+
+		assert.Equal(t, true, description.NoKeywords())
+	})
+	t.Run("keywords", func(t *testing.T) {
+		description := &Description{PhotoID: 123, PhotoDescription: "test", PhotoKeywords: "test cat dog", PhotoSubject: "animals", PhotoArtist: "Bender", PhotoNotes: "notes", PhotoCopyright: "copy"}
+
+		assert.Equal(t, false, description.NoKeywords())
+	})
+}
+
+func TestDescription_NoSubject(t *testing.T) {
+	t.Run("no subject", func(t *testing.T) {
+		description := &Description{PhotoID: 123, PhotoDescription: ""}
+
+		assert.Equal(t, true, description.NoSubject())
+	})
+	t.Run("subject", func(t *testing.T) {
+		description := &Description{PhotoID: 123, PhotoDescription: "test", PhotoKeywords: "test cat dog", PhotoSubject: "animals", PhotoArtist: "Bender", PhotoNotes: "notes", PhotoCopyright: "copy"}
+
+		assert.Equal(t, false, description.NoSubject())
+	})
+}
+
+func TestDescription_NoNotes(t *testing.T) {
+	t.Run("no notes", func(t *testing.T) {
+		description := &Description{PhotoID: 123, PhotoDescription: ""}
+
+		assert.Equal(t, true, description.NoNotes())
+	})
+	t.Run("notes", func(t *testing.T) {
+		description := &Description{PhotoID: 123, PhotoDescription: "test", PhotoKeywords: "test cat dog", PhotoSubject: "animals", PhotoArtist: "Bender", PhotoNotes: "notes", PhotoCopyright: "copy"}
+
+		assert.Equal(t, false, description.NoNotes())
+	})
+}
+
+func TestDescription_NoArtist(t *testing.T) {
+	t.Run("no artist", func(t *testing.T) {
+		description := &Description{PhotoID: 123, PhotoDescription: ""}
+
+		assert.Equal(t, true, description.NoArtist())
+	})
+	t.Run("artist", func(t *testing.T) {
+		description := &Description{PhotoID: 123, PhotoDescription: "test", PhotoKeywords: "test cat dog", PhotoSubject: "animals", PhotoArtist: "Bender", PhotoNotes: "notes", PhotoCopyright: "copy"}
+
+		assert.Equal(t, false, description.NoArtist())
+	})
+}
+
+func TestDescription_NoCopyright(t *testing.T) {
+	t.Run("no copyright", func(t *testing.T) {
+		description := &Description{PhotoID: 123, PhotoDescription: ""}
+
+		assert.Equal(t, true, description.NoCopyright())
+	})
+	t.Run("copyright", func(t *testing.T) {
+		description := &Description{PhotoID: 123, PhotoDescription: "test", PhotoKeywords: "test cat dog", PhotoSubject: "animals", PhotoArtist: "Bender", PhotoNotes: "notes", PhotoCopyright: "copy"}
+
+		assert.Equal(t, false, description.NoCopyright())
+	})
+}
diff --git a/internal/entity/file_test.go b/internal/entity/file_test.go
index d67b80b72..82b72438a 100644
--- a/internal/entity/file_test.go
+++ b/internal/entity/file_test.go
@@ -7,6 +7,21 @@ import (
 	"github.com/stretchr/testify/assert"
 )
 
+func TestFirstFileByHash(t *testing.T) {
+	t.Run("not existing file", func(t *testing.T) {
+		f, err := FirstFileByHash("xxx")
+		assert.Equal(t, "record not found", err.Error())
+		assert.Equal(t, uint(0), f.ID)
+	})
+	t.Run("existing file", func(t *testing.T) {
+		f, err := FirstFileByHash("2cad9168fa6acc5c5c2965ddf6ec465ca42fd818")
+		if err != nil {
+			t.Fatal("error")
+		}
+		assert.Equal(t, uint(0xf4240), f.ID)
+	})
+}
+
 func TestFile_DownloadFileName(t *testing.T) {
 	t.Run("photo with title", func(t *testing.T) {
 		photo := &Photo{TakenAtLocal: time.Date(2019, 01, 15, 0, 0, 0, 0, time.UTC), PhotoTitle: "Berlin / Morning Mood"}
@@ -34,3 +49,21 @@ func TestFile_DownloadFileName(t *testing.T) {
 		assert.Equal(t, "123Hash.jpg", filename)
 	})
 }
+
+func TestFile_Changed(t *testing.T) {
+	t.Run("different modified times", func(t *testing.T) {
+		file := &File{Photo: nil, FileType: "jpg", FileSize: 500, FileModified: time.Date(2019, 01, 15, 0, 0, 0, 0, time.UTC)}
+		time := time.Date(2020, 01, 15, 0, 0, 0, 0, time.UTC)
+		assert.Equal(t, true, file.Changed(500, time))
+	})
+	t.Run("different sizes", func(t *testing.T) {
+		file := &File{Photo: nil, FileType: "jpg", FileSize: 600, FileModified: time.Date(2019, 01, 15, 0, 0, 0, 0, time.UTC)}
+		time := time.Date(2019, 01, 15, 0, 0, 0, 0, time.UTC)
+		assert.Equal(t, true, file.Changed(500, time))
+	})
+	t.Run("no change", func(t *testing.T) {
+		file := &File{Photo: nil, FileType: "jpg", FileSize: 500, FileModified: time.Date(2019, 01, 15, 0, 0, 0, 0, time.UTC)}
+		time := time.Date(2019, 01, 15, 0, 0, 0, 0, time.UTC)
+		assert.Equal(t, false, file.Changed(500, time))
+	})
+}