fn url_validation_works_and_records_errors()

in glean-core/src/metrics/url.rs [255:316]

• 46 lines of code
• 3 McCabe index (conditional complexity)

    fn url_validation_works_and_records_errors() {
        let (glean, _t) = new_glean(None);

        let metric = UrlMetric::new(CommonMetricData {
            name: "url_metric".into(),
            category: "test".into(),
            send_in_pings: vec!["store1".into()],
            lifetime: Lifetime::Application,
            disabled: false,
            dynamic_label: None,
        });

        let incorrects = vec![
            "",
            // Scheme may only start with upper or lowercase ASCII alpha[^1] character.
            // [1]: https://infra.spec.whatwg.org/#ascii-alpha
            "1glean://test",
            "-glean://test",
            // Scheme may only have ASCII alphanumeric characters or the `-`, `.`, `+` characters.
            "шеллы://test",
            "g!lean://test",
            "g=lean://test",
            // Scheme must be followed by `:` character.
            "glean//test",
        ];

        let corrects = vec![
            // The minimum URL
            "g:",
            // Empty body is fine
            "glean://",
            // "//" is actually not even necessary
            "glean:",
            "glean:test",
            "glean:test.com",
            // Scheme may only have ASCII alphanumeric characters or the `-`, `.`, `+` characters.
            "g-lean://test",
            "g+lean://test",
            "g.lean://test",
            // Query parameters are fine
            "glean://test?hello=world",
            // Finally, some actual real world URLs
            "https://infra.spec.whatwg.org/#ascii-alpha",
            "https://infra.spec.whatwg.org/#ascii-alpha?test=for-glean",
        ];

        for incorrect in incorrects.clone().into_iter() {
            metric.set_sync(&glean, incorrect);
            assert!(metric.get_value(&glean, "store1").is_none());
        }

        assert_eq!(
            incorrects.len(),
            test_get_num_recorded_errors(&glean, metric.meta(), ErrorType::InvalidValue).unwrap()
                as usize
        );

        for correct in corrects.into_iter() {
            metric.set_sync(&glean, correct);
            assert_eq!(metric.get_value(&glean, "store1").unwrap(), correct);
        }
    }