People: Add SubjectNames() to file entity #22

internal/entity/file_json_test.go

@@ -0,0 +1,13 @@
+package entity
+
+import "testing"
+
+func TestFile_MarshalJSON(t *testing.T) {
+	if m := FileFixtures.Pointer("Video.mp4"); m == nil {
+		t.Fatal("must not be nil")
+	} else if j, err := m.MarshalJSON(); err != nil {
+		t.Fatal(err)
+	} else {
+		t.Logf("json: %s", j)
+	}
+}