    public void testParseWithoutWeight() {
        String expectedFeature = "ad_url|891572";
        FeatureValue fv = FeatureValue.parse(expectedFeature);
        assertNotNull(fv);
        assertEquals(expectedFeature, fv.getFeature().toString());
        assertEquals(1.f, fv.getValueAsFloat(), 0.f);

        expectedFeature = "891572";
        fv = FeatureValue.parse(expectedFeature);
        assertNotNull(fv);
        assertEquals(expectedFeature, fv.getFeature().toString());
        assertEquals(1.f, fv.getValueAsFloat(), 0.f);
    }
